JP6056912B2 - Information processing apparatus, information processing system, control method, and program - Google Patents

Description

  The present invention relates to encryption of a file attached to an e-mail.

  In recent years, in an e-mail system, e-mail is transmitted and received between client terminals via a network. However, it is used as a very convenient tool for exchanging information with a distant place.

  However, there are many cases in which highly confidential information is included in an e-mail and exchanged with the other party in an emergency or the like. In this case, the transmitted e-mail is sent to the other party's mail server. In the process, eavesdropping and tampering are performed, and there is a risk that highly confidential information cannot be transmitted safely.

  Therefore, a number of methods for encrypting e-mails have been proposed. For example, methods such as PGP (Pretty Good Privacy) and S / MIME (Secure / Multipurpose Internet Mail Extensions) have been proposed. By performing encryption and decryption on both the sending and receiving sides, the aforementioned risks are avoided.

  In order to use such a method, it is necessary to install software that provides functions for performing encryption and decryption for each client terminal. Consideration of the installation of these software (cost and safety) Etc.), installation work, and post-installation setting work, etc., there are some inconveniences for users.

  However, as a method of using electronic mail, there is a method in which information with low or no confidentiality is input in the body of the electronic mail, and a file containing information with high confidentiality is attached to the electronic mail and transmitted.

  In this case, it is not necessary to encrypt all emails as in the above-mentioned method, and it is possible to deal with by encrypting only the files attached to the emails. There is a mechanism for encrypting files attached by an intermediary mail server, etc., but even in such a configuration, a function to encrypt and decrypt both mail servers on the sending and receiving sides is provided. Software that needs to be installed.

Therefore, when an e-mail is transmitted from the internal client to the external client, an e-mail to be transmitted is encrypted and transmitted using a predetermined fixed password, and a notification e-mail including the fixed password is also transmitted. Technology has been presented (see, for example, Patent Document 1).
JP 2009-171542 A

  However, it is normal for persons who frequently exchange e-mails to operate by deciding a password to be used. In the technique described in Patent Document 1, a fixed password is notified to a destination external client. It is shown that one fixed password is notified, and when performing the operation as described above, an unsuitable configuration is taken.

  When the technology described in Patent Document 1 is used, a password for an e-mail transmitted from an internal mail is known to a user who uses this system, and an e-mail is erroneously transmitted to an unexpected user. Risks such as information leakage will occur.

  Furthermore, in the technology described in Patent Document 1, a configuration for automatically generating a password is described, and although it is possible to reduce the risk of information leakage, etc., when performing the operation as described above, This is an unsuitable configuration.

  The present invention has been made in order to solve the above-described problems. An information processing apparatus, an information processing system, and an information processing system capable of improving security while performing flexible operation in sending and receiving e-mails. It is an object to provide a control method and a program.

A first invention for achieving the above object is an information processing apparatus for receiving an e-mail transmitted from a client terminal, and a method for setting a password for an attached file of the e-mail set in the client terminal When a storage means for storing a password in accordance with the prior SL e-mail address, a mail receiving means for receiving the electronic mail, attachment of the electronic mail according to how to set the password stored by the storage means transmitting a password setting means for setting a password to the file, and mail transmission means for transmitting the electronic mail configured file attached password to the destination by the password setting means, the e-mail by said mail sending means The password set by the password setting means is displayed. Password notification email sending means for sending a password notification email to the destination, and managing the time related to the transmission of the password notification email using the password corresponding to the destination by the password notification email sending means Management means, wherein the password setting means obtains a password corresponding to the destination of the e-mail from the storage means by a password setting method indicating that a predetermined password is set in the attached file of the e-mail. The password notification mail transmission means sets the password attached to the email, and the password notification mail transmission means is for password notification until a predetermined period elapses based on the time for transmission of the password notification email managed by the management means. On the other hand, the elapse of a certain period of time After is an information processing apparatus characterized that you send e-mail password notification password identical to the password shown in the e-mail password notifications the transmission is shown.

A second invention for achieving the above object, an information processing system in which a plurality of client terminals and information processing apparatus for sending and receiving e-mail is connected via a network, said client terminal, the A client mail receiving means for receiving the electronic mail from a mail transmitting means of the information processing apparatus; and a client mail transmitting means for transmitting the electronic mail to the information processing apparatus , wherein the information processing apparatus includes the client terminal and how to set the password for the e-mail attachment that has been set in a storage means for storing a password in accordance with the prior SL e-mail address, mail reception to receive e-mail from the client mail sending means and means, in accordance with how to set the password stored by the storage means Password setting means for performing serial password settings to e-mail attachments, mail to send an e-mail a file password is set is attached by the password setting means to the client terminal identified by the destination A transmission means; a password notification mail sending means for sending a password notification email indicating the password set by the password setting means to the destination after sending the email by the mail sending means; and the password notification mail. Managing means for managing a time related to transmission of a password notification e-mail using a password corresponding to the destination by the sending means, wherein the password setting means sets a predetermined password in the attached file of the e-mail Password setting to indicate According to the law, a password corresponding to the destination of the e-mail is acquired from the storage unit and set in the attached file of the e-mail, and the password notification e-mail transmission unit is used for the password notification managed by the management unit The password notification email is not sent until the predetermined period has passed based on the time related to the transmission of the email. On the other hand, after the predetermined period has passed, the password indicated in the transmitted password notification email is sent. email password notification same password is shown as an information processing system which is characterized that you send.

A third invention for achieving the above object is achieved by a method of controlling an information processing apparatus for receiving electronic mail sent from the client terminal, the information processing apparatus, mail receiving said e-mail The e-mail according to the receiving step, a password setting method for the attached file of the e-mail set in the client terminal, and a password setting method stored by a storage means for storing a password according to the destination of the e-mail password setting step of setting the attachment to the password, the password setting mail transmission step of transmitting an e-mail file password is set is attached to the destination by the step, send e-mail by said mail sending step After the password setting step A password notification email sending step for sending a password notification email indicating the set password to the destination, and sending a password notification email using the password corresponding to the destination in the password notification email sending step A password management method for managing a time associated with the e-mail, wherein the password setting step stores a password corresponding to the destination of the e-mail by a password setting method indicating setting a predetermined password in an e-mail attachment. The password notification mail transmission step elapses for a predetermined period based on the time related to the transmission of the password notification email managed by the management step. Pass the password Not send an e-mail use, whereas, after the lapse of a predetermined period of time includes transmitting the e-mail password notification identical to the password of password is shown represented in an email password notifications the transmission This is a method for controlling an information processing apparatus.

A fourth invention for achieving the above object is a program readable and executable by an information processing apparatus for receiving an electronic mail transmitted from a client terminal , wherein the information processing apparatus receives the electronic mail. a mail receiving means, setting of the method of setting the password for the e-mail attachment that is set in the client terminal, the password stored by the storage means for storing a password in accordance with the prior SL e-mail address and mail transmission means for transmitting the password setting means for setting a password to the email attachment, the e-mail a file password is set is attached by the password setting means to the destination according to the method, the mail After sending the e-mail by the sending means, the password setting means A password notification e-mail for transmitting a password notification e-mail indicating the set password to the destination, and a password notification e-mail using the password corresponding to the destination by the password notification e-mail transmission unit A password corresponding to the destination of the e-mail by a password setting method indicating that a predetermined password is set in the attached file of the e-mail. Is acquired from the storage unit and set in the attached file of the e-mail, and the password notification e-mail transmission unit is predetermined based on the time related to the transmission of the password notification e-mail managed by the management unit. Password notification email until the period expires Without transmitting, whereas, after the lapse of a predetermined period, and characterized in that to function as a sending e-mail password notification identical to the password of password is shown represented in an email password notifications the transmission It is a program to do.

A fifth invention for achieving the above object is a method of controlling an information processing system in which a plurality of client terminals for transmitting and receiving e-mails and an information processing apparatus are connected via a network, wherein the client terminal Includes a client mail receiving step for receiving the electronic mail from a mail transmitting step of the information processing apparatus, and a client mail transmitting step for transmitting the electronic mail to the information processing apparatus , wherein the information processing apparatus includes the client mail receiving step of receiving an e-mail from the mail transmitting step, and how to set the password for the e-mail attachment that is set in the client terminal, the storage for storing the password in accordance with the prior SL e-mail address To set a password stored by means Thus the password setting step of setting a password to the e-mail attachment, mail to send an e-mail a file password is set is attached by the password setting step to the client terminal identified by the destination transmission step, wherein after sending the e-mail by the mail sending step, the password setting password notification mail transmission step of transmitting the e-mail password notification password is shown set to the destination by the step, the password notification mail transmission step Managing a time related to transmission of an email for password notification using a password corresponding to the destination by the password, and the password setting step includes a predetermined password in an attached file of the email. The password corresponding to the e-mail destination is acquired from the storage means and set in the attached file of the e-mail, and the password notification e-mail sending step includes the management step The password notification e-mail is not transmitted until a predetermined period elapses based on the time related to transmission of the password notification e-mail managed by the password notification. A method for controlling an information processing system, comprising: transmitting a password notification e-mail indicating a password identical to the password indicated in the e-mail for use .

A sixth invention for achieving the above object is a program that can be read and executed in an information processing system in which a plurality of client terminals that perform transmission / reception of electronic mail and an information processing apparatus are connected via a network, said client terminal, the client mail receiving means for receiving the electronic mail from the mail transmitting unit of the information processing apparatus, and the client mail sending means for sending the e-mail to the information processing apparatus, and by function, the the information processing apparatus, a mail receiving means for receiving electronic mail from the client mail transmitting means, and how to set the password for the e-mail attachment that is set in the client terminal, before Symbol e-mail address password stored by the storage means for storing a password if Password setting means according to the setting method of de to set a password to the email attachment, the e-mail a file password is set is attached by the password setting means to the client terminal identified by the destination and mail transmission means for transmitting, after transmitting the e-mail by said mail sending means, and the password notification mail sending means for sending the e-mail password notification password set by the password setting means is shown to the destination , Functioning as management means for managing a time related to transmission of a password notification e-mail using a password corresponding to the destination by the password notification e-mail transmission means, wherein the password setting means is attached to an e-mail Set a predetermined password for the file A password corresponding to the destination of the e-mail is acquired from the storage unit and set in the attached file of the e-mail, and the password notification e-mail transmission unit is managed by the management unit The password notification e-mail is not transmitted until a predetermined period elapses based on the time related to the transmission of the password notification e-mail. On the other hand, after the predetermined period elapses, the password notification e-mail is transmitted. is a program for causing to function as a sending e-mail password notification identical to the password of password is indicated as shown in the email.

  According to the present invention, after sending an e-mail, a predetermined password is notified by a destination e-mail address, so that e-mail can be sent and received, and security can be improved while performing flexible operation. There is an effect that it is possible.

It is a lineblock diagram showing a schematic structure of an information processing system concerning an embodiment of the present invention. It is a block diagram which shows schematic structure of the hardware of the various terminals which concern on embodiment of this invention. It is a block diagram which shows the function structure in the information processing system which concerns on embodiment of this invention. It is a flowchart which shows the password notification process of the email in the information system which concerns on embodiment of this invention. It is a flowchart which shows the password notification process of the email in the information system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the screen for performing the transmission instruction | indication of the email in the client terminal which concerns on embodiment of this invention. It is a block diagram which shows the structure of the screen for performing the transmission / reception setting of the email in the client terminal which concerns on embodiment of this invention. It is a block diagram showing the structure of the screen which shows an example of the reminder mail in the client terminal which concerns on embodiment of this invention. It is a block diagram showing the structure of the screen which shows an example of having notified the predetermined password of the attachment file in the client terminal which concerns on embodiment of this invention. It is a block diagram showing the structure of the screen which shows an example of having notified the automatic generation password of the attachment file in the client terminal which concerns on embodiment of this invention. It is a block diagram which shows the structure of the table which manages the password of the attached file according to the destination of an email in the information processing system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the table which manages the transmission condition etc. of an email in the information processing system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the table which manages the password of the attached file according to the destination of an email in the information processing system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the screen for performing the transmission instruction | indication of the email in the client terminal which concerns on embodiment of this invention. It is a flowchart which shows the password notification process of an email in the information processing system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the table which manages the transmission condition etc. of an email in the information processing system which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[First Embodiment]
FIG. 1 is a diagram illustrating an example of a system configuration in an information processing system according to an embodiment of the present invention. Note that the configurations of the various terminals shown in FIG. 1 are merely examples, and it goes without saying that there are various configuration examples depending on the purpose and application.

  As shown in FIG. 1, an information processing system 100 according to the present embodiment includes a client terminal 101, an administrator client terminal 102 used by a system administrator, and an internal mail server 104. They are connected to each other via a local area network (LAN) 103 so as to communicate with each other, and are constructed as an internal system.

  The client terminal 101 is connected to the external client terminal 107 connected to at least one or more external mail servers 106 via the wide area network 105 so as to be able to communicate with each other. A firewall device (not shown) is installed between the LAN 103 and the wide area network 105, and communication control processing is performed according to a predetermined rule.

  The internal mail server 104 is a server device for relaying electronic mail by the client terminal 101. The internal mail server 104 specifies the SMTP communication content of the client terminal 101 and performs various processes described later according to the communication content.

  The administrator client terminal 102 sets and manages the internal mail server 104.

  Next, the hardware configuration of various terminals of the internal mail server 104 shown in FIG. 1 will be described with reference to FIG. Since the client terminal 101, the administrator client terminal 102, the external mail server 106, and the external client terminal 107 have the same configuration, the description thereof is omitted.

  The CPU 201 comprehensively controls each device and controller connected to the system bus 204. In addition, the ROM 202 or the external memory 211 is provided with a BIOS (Basic Input / Output System) or an operating system program (hereinafter referred to as an OS), which is a control program for the CPU 201, or a function executed by each server or each client device. Various necessary programs to be described later are stored.

  The RAM 203 functions as a main memory, work area, and the like for the CPU 201. The CPU 201 implements various operations by loading a program necessary for execution of processing into the RAM 203 and executing the program.

  An input controller (input C) 205 controls input from an input unit 209 indicating a pointing device such as a keyboard or a mouse (not shown). A video controller (VC) 206 controls display on a display device such as a CRT display (CRT) 210. The display device may be a liquid crystal display as well as a CRT.

  A memory controller (MC) 207 is a hard disk (HD), floppy disk (registered trademark FD) or PCMCIA card slot for storing boot programs, browser software, various applications, font data, user files, editing files, various data, and the like. Controls access to an external memory 211 such as a CompactFlash (registered trademark) memory connected via an adapter.

  A communication I / F controller (communication I / FC) 208 is connected to and communicates with an external device via a network, and executes communication control processing in the network. For example, Internet communication using TCP / IP is possible.

  Note that the CPU 201 enables display on the display device 210 by executing outline font rasterization processing on a display information area in the RAM 203, for example. Further, the CPU 201 enables a user instruction with a mouse cursor (not shown) on the display device 210.

  A program or the like for executing a password notification mail transmission process for realizing the present invention is stored in the external memory 211 and is executed by the CPU 201 by being loaded into the RAM 203 as necessary.

  Definition information and various information tables used in the password notification mail transmission process according to the present invention are also stored in the external memory 211. Detailed description thereof will be described later.

  FIG. 3 is a schematic diagram illustrating a functional configuration according to the information processing system 100, and an outline of each function will be described. The contents of each function will be described with reference to the flowcharts shown in FIGS.

  As illustrated in FIG. 3, the client terminal 101 includes a client mail transmission unit 301, and the client mail transmission unit 301 is connected to the internal mail server 104 via the LAN 103.

  The client mail transmission unit 301 has a function realized by software (so-called mailer) for instructing transmission of an e-mail. For example, the client mail transmission unit 301 displays a mail creation screen 400 shown in FIG. Is attached to the destination 401 indicating the destination address of the email, CC (Carbon Copy) 402, subject 403 indicating the title of the email, email text 404, and email using the input unit 209. Input or attachment is performed on the attached file 405 or the like indicating the file.

  Then, when the user transmits an e-mail, the user presses a send button 406 provided on the e-mail creation screen 400 to send the e-mail created using the input unit 209 to the destination 401 and the CC 402 set. Send to the destination address.

  The mail creation screen 400 also includes an attachment button 407. When the user attaches the attachment file 405 to an e-mail, the user designates a file existing in the client terminal 101 by pressing the attachment button 407. A display screen (not shown) is displayed on the display device 210, and a file to be attached is attached to an e-mail by selecting and specifying from the file displayed on the screen using the input unit 209.

  Further, the mail creation screen 400 includes a tool button 408. When the user presses the tool button 408, settings such as e-mail transmission / reception control, mail address address book, security of received e-mail, and the like are set. As an example, various settings are made using the setting screen 500 shown in FIG. 7 (details will be described later).

  The client terminal 101 includes client mail receiving means 302, and the client mail receiving means 302 is connected to the internal mail server 104 via the network 103.

  The client mail receiving unit 302 receives an e-mail via the internal mail server 104 from the client terminal 101 existing in the internal system or the external client terminal 107 existing in an external system other than the internal system.

  The received mail is displayed on the display device 210 including items such as the destination 401, the CC 402, the subject 403, the e-mail text 404, and the attached file 405 of the mail creation screen 400 shown in FIG. Check the contents of the received e-mail.

  The internal mail server 104 includes a server mail receiving unit 303 and a mail storage unit 304. The server mail receiving unit 303 includes at least one external mail server 106 via the client terminal 101 and the wide area network 105. It is connected.

  The server mail receiving unit 303 receives an email from the client terminal 101 existing in the internal system or the external client terminal 107 existing in an external system other than the internal system.

  The server mail receiving unit 303 is connected to the mail storage unit 304, and the received email is stored by the mail storage unit 304.

  The mail storage unit 304 stores the e-mail received by the server mail receiving unit 303 in an e-mail information table 900 that manages the e-mail transmission status and the like as shown in FIG. The e-mail information table 900 is stored in the external memory 211.

  The e-mail information table 900 includes an e-mail ID for uniquely identifying a received e-mail (Messege-id included in e-mail header information may be used), e-mail reception date and time, e-mail transmission source Information such as a transmission source address indicating an address, a destination address indicating a transmission destination address of the electronic mail, a subject of the electronic mail, a body text, and an attached file is stored.

  Further, the e-mail information table 900 will be described in detail later, but when a password is already set for an e-mail having an attached file, the e-mail is transmitted to the transmission destination, and then the client terminal 101 of the transmission source. If an email for notifying the password is sent, and an email for notifying the password is not sent to the destination, an email for prompting ( Thereafter, a reminder mail (details will be described later) is sent to the sender.

  Therefore, the e-mail information table 900 includes information such as a reminder mail transmission status as information for managing the transmission status of the reminder mail to the destination.

  As an example of the transmission status of the reminder email, manual transmission indicating that an e-mail for notifying the password has already been transmitted from the client terminal 101, unsent indicating that the reminder email has not been transmitted, and already prompting Reminder indicating that the e-mail has been sent, password is not set for the attached file, password is automatically set, password is not set, or attachment file is not included, it is excluded .

  When a new e-mail is received, if the predetermined password setting 503 and the random password setting 504 are selected on the setting screen 500 to be described later, the target is not set. Is set.

  The internal mail server 104 includes a reminder mail determination means 305, a reminder mail generation means 306, and a reminder mail transmission means 307.

  The reminder mail determination unit 305 is connected to the server mail receiving unit 303, and notifies the password of an email having an attached file with a password already set after the server mail receiving unit receives the email. It is determined whether or not the e-mail is sent.

  As a determination method, first, the transmission status of the reminder email in the email information table 900 is that there is unsent email information, and among the unsent email information, the sender address and destination that match the email ID It is possible to determine whether the addresses match and have been received within a predetermined time, and if the address has been received within a predetermined time, analyze the body of the e-mail information and notify the password. Identify expected email information.

  Note that the method for identifying e-mail information that is expected to be notified of the password is not limited to such a mode, but may be a mode in which another existing technology is applied. For example, when sending an e-mail with an attached file, the user enters identification information in the subject, body, etc., and the user enters the same identification information in the subject, body, etc. of the e-mail for notifying the password Thus, when the identification information matches, the e-mail information expected to be notified of the password may be specified.

  As a result, if an email for notifying the password is identified, it is considered as an email for notifying the password, and an email for notifying the password and an email for notifying the password are sent. It is assumed that the reminder mail transmission status of the e-mail information of the e-mail (the e-mail having the attached file) corresponding to is manually transmitted.

  On the other hand, when the e-mail for notifying the password is not specified, the reminder mail transmission state is left untransmitted.

  The reminder mail generation means 306 is connected to the mail storage means 304 and the reminder mail determination means 305, and for the email whose reminder mail transmission status remains unsent by the reminder mail determination means 305, After generating the reminder mail, the electronic mail information regarding the generated reminder mail is stored in the email information table 900.

  An example of the reminder mail is the reminder mail 600 shown in FIG. 8. The reminder mail 600 includes a destination 601 for setting a mail address of a transmission source and a subject for setting information indicating that this mail is a reminder mail. 602 includes a reminder mail text 603 displaying a document for prompting a password to the transmission source.

  The destination 601 and the reminder email text 603 obtain the email address and text of the sender of the email having the attached file from the email information table 900, and generate the reminder email 600.

  The reminder mail transmitting means 307 is connected to the reminder mail generating means 306 and transmits the reminder mail 600 to the destination 601 of the reminder mail 600 generated by the reminder mail generating means 306.

  The internal mail server 104 includes a password setting determination unit 308, a mail generation unit 309, a server mail transmission unit 310, a password storage unit 311, a password notification mail generation unit 312, a password notification mail storage unit 313, and a password notification mail transmission unit 314. I have.

  The password setting determination unit 308 is connected to the server mail reception unit 303, the mail generation unit 309, the password storage unit 311, and the password notification mail generation unit 312.

  When the server mail receiving unit 303 receives the notification that the e-mail has been received, the password setting determining unit 308 analyzes the content of the e-mail. The outline of the analysis content is an e-mail having an attached file. If a password is not set for the attached file, an e-mail destination (which may include a CC) is extracted, and a predetermined password corresponding to this e-mail is specified, or is automatically randomized. Generate a password for

  As described above, it is possible to select a method for automatically setting a password in an attached file. This selection can be made by performing setting using the setting screen 500 in the client terminal 101.

  The setting screen 500 can be used to set a warning for a predetermined action to the mailer at the time of starting and ending the mailer, security for an email to be transmitted, and the like. In the security setting, it is possible to select a method for automatically setting a password for an attached file of an e-mail.

  As a selection method, in the area of automatic password setting 501 for an attached file on the setting screen 500, no setting 502 for selecting when the password is not automatically set for the attached file, a predetermined password is set for the attached file. When one of the predetermined password setting 503 for selecting at the time and the random password setting 504 for selecting at the time of setting the random password to the attached file is selected, the setting value is set in the e-mail to be transmitted Is done.

  Note that no setting 502, predetermined password setting 503, and random password setting 504 are controlled so that any one of them can be selected like a radio button.

  When the user presses an OK button 505 after selecting any one of “no setting 502”, “predetermined password setting 503”, and “random password setting 504”, the selected setting method is subsequently set for the e-mail to be transmitted. Applied.

  That is, for the other party set as the destination, the user selects the predetermined password setting 503 if the operation is performed to set the password for the attached file using the predetermined password. If the user specifies a predetermined password to set in the attached file and does not operate using the predetermined password, the user selects the random password setting 504 and sends an e-mail each time Automatically generate a random password automatically.

  A predetermined password to be set according to such a destination is stored in advance in a table constituting the password storage means 311. An example of the configuration of this table is a password table 800 shown in FIG.

  When the password table 800 sends an e-mail address indicating a destination to set a predetermined password for an attached file, an attached file password indicating a predetermined password, and an e-mail notifying only the password set in the attached file It has a configuration including a use date and time indicating the date.

  The password setting determination unit 308 determines whether or not a predetermined password corresponding to the extracted destination exists in the password storage unit 311 (password table 800). It is possible to use a method that automatically generates a random password if it does not exist.

  After the analysis of the e-mail, the password setting determination unit 308 sends a predetermined password and an analysis end result to the e-mail generation unit 309 when the password corresponding to the extracted destination exists in the password storage unit 311. If it is notified, does not exist, and is set in the random password setting 504, the random password is generated to the mail generation means 309, and the random password and the analysis end result are notified. If no setting 502 is set, the mail generation unit 309 is notified of the analysis end result.

  In addition, when a predetermined password corresponding to the extracted destination exists in the password storage unit 311, the password notification mail generation unit 312 is notified of the extracted destination, the password, and the like together with the analysis end result. Not only the item but also the item can be notified as long as the contents (to be described later) to be notified to the transmission destination can be specified from the e-mail. The same applies when setting a random password.

  The mail generation unit 309 is also connected to the server mail transmission unit 310. When the password setting determination unit 308 receives a notification of a predetermined password or a random password and an analysis end result, the electronic mail received by the server mail reception unit 303 is received. The mail attachment is extracted, the notified password is set for the attachment, the attachment with the password set is attached to the e-mail again, and output to the server mail transmission unit 310. .

  When the password setting determination unit 308 receives only the notification of the analysis end result, the mail generation unit 309 outputs the email received by the server mail reception unit 303 to the server mail transmission unit 310.

  The server mail transmission unit 310 is connected to at least one external mail server 106 via the client terminal 101 or the wide area network 105.

  When the server mail transmission unit 310 receives the output of the e-mail from the mail generation unit 309, the server mail transmission unit 310 sends the e-mail to the client terminal 101 existing in the internal system or the external client terminal 107 existing in the external system other than the internal system. Send.

  The password notification mail generation unit 312 is connected to the password notification mail storage unit 313 and the password notification mail transmission unit 314. The destination extracted from the password setting determination unit 308 together with the analysis completion result, a predetermined password, a random password, or the like When the notification is received, an e-mail for notifying only the password set in the attached file is generated.

  An example of an e-mail notifying only the password set in the attached file is a password notifying screen 700 shown in FIG. 9. The password notifying screen 700 includes a destination 701 indicating an e-mail transmission destination address, CC (Carbon Copy). 702, a subject 703 indicating the title of the e-mail, and an e-mail text 704.

  For the destinations 701 and CC 702, the destination (the destination 401 of the mail creation screen 400) and the CC (the CC 402 of the mail creation screen 400) notified from the password setting determination unit 308 are set in the order of description. The contents indicating that this e-mail is an e-mail notifying only the password set in the attached file (for example, password notification) is set.

  The e-mail body 704 outputs the name corresponding to the destination and the password notified from the password setting determination unit 308. However, as described above, the information notified from the password setting determination unit 308 includes information that can be extracted from the e-mail received by the server mail receiving unit 303, for example, an attached file such as a title set in the subject 403. It is also possible to output information that makes it easy to specify the e-mail to be sent.

  When the password notification mail generation unit 312 completes the generation of an email for notifying only the password set in the attached file, the password notification email storage unit 313 stores the information related to the generated email in the email information table 900. The reminder mail transmission status is set to not applicable.

  Further, when the generation of the e-mail for notifying only the password set in the attached file is completed, the password notification mail generating unit 312 notifies the password notification mail transmitting unit 314 of the completion of generation.

  The password notification mail transmission unit 314 is connected to at least one or more external mail servers 106 via the client terminal 101 or the wide area network 105.

  Upon receiving the generation completion notification from the password notification mail generation unit 312, the password notification mail transmission unit 314 sets the attached file for the client terminal 101 existing in the internal system or a client terminal existing in an external system other than the internal system. Send an e-mail notifying only the entered password.

  The administrator client terminal 102 includes a password setting unit 315. The password setting unit 315 is connected to the internal mail server 104 and displays a screen (not shown) for setting a password according to the destination. The information is displayed on the apparatus 210 and the administrator is made to input.

  The password input by the password setting unit 315 is transmitted to the internal mail server 104 via the network 103 and stored in the password storage unit 311 (password table 800).

  That is, a screen (not shown) for setting a password corresponding to the destination in the password setting unit 315 has a configuration that allows each item (at least an email address and an attached file password item) in the password table 800 to be input. ing. However, when the record is initially registered or when the record is changed, the use date is set as blank.

  Next, FIG. 4 shows a flowchart representing a password notification mail transmission process in the information processing system according to the embodiment of the present invention. In addition, about the process performed by each step, a process is performed under control of CPU201 of the internal mail server 104. FIG.

  In step S100, the server mail receiving unit 303 receives the e-mail transmitted by the client mail transmitting unit 301 of the client terminal 101, and the mail storage unit 304 stores the received e-mail in the e-mail information table 900.

  When the predetermined password setting 503 and the random password setting 504 are selected on the setting screen 500, “not applicable” is set in the reminder mail transmission status of the e-mail information table 900, otherwise it is not sent Is set.

  In step S101, the reminder e-mail determination unit 305 includes, among the e-mail information stored in the e-mail information table 900 stored in the e-mail storage unit 304, the reminder e-mail transmission status is unsent e-mail information and the unsent e-mail information. If the source address and the destination address of the e-mail information to be sent match and are received within a predetermined time, it is expected that the e-mail information will be analyzed and the password will be notified. Identify email information. Then, it is assumed that the reminder mail transmission status of the specified e-mail information (the e-mail having an attached file and the e-mail information related to the e-mail for notifying the password) is manually transmitted.

  If the e-mail information expected to be notified of the password cannot be specified, the process proceeds to step S102, and if the e-mail information expected to be notified of the password can be specified, the e-mail information reminder e-mail In the transmission status, manual transmission is set, and the process proceeds to step S103.

  In step S <b> 102, the reminder mail generation unit 306 generates the reminder mail 600 based on the e-mail information in which the reminder mail transmission status is not transmitted, and then the reminder mail transmitter 307 transmits the generated reminder mail 600. . Then, the e-mail information regarding the reminder mail 600 is stored in the e-mail information table 900 by the mail storage unit 304. It should be noted that the reminder email transmission status of the email information of the original email targeted for the reminder email 600 and the email information of the reminder email 600 is set as sent.

  In step S103, the password setting determination unit 308 determines whether or not the email received by the server mail reception unit 303 has an attached file. If it is determined that the attached file exists, the process proceeds to step S104. If it is not determined that the attached file exists, the process proceeds to step S119.

  In step S104, the password setting determination unit 308 acquires information about the destination from the e-mail. In step S105, the password setting determination unit 308 determines that the predetermined password setting 503 is set for the e-mail. The password for the attached file corresponding to the mail address of the password table 800 corresponding to the destination acquired in step S1 is acquired, and the password corresponding to the destination is specified. If there is no e-mail address corresponding to the destination in the password table 800, it is specified that there is no password corresponding to the destination.

  In step S106, the password setting determination unit 308 determines whether or not the password specified in step S105 is a predetermined password. If it is determined that the password is the predetermined password, the process proceeds to step S107, and the predetermined password is determined. If not, the process proceeds to step S120.

  In this step, only a predetermined password is set as the attached file password in the password table 800, and if there is a predetermined password corresponding to the destination in the attached file password, the process proceeds to step S107, and the password For a destination that does not exist in the table 800, a password is automatically generated at random, or if the random password setting 504 is set for the e-mail, the process proceeds to step S120.

  As another determination method, when setting a predetermined password or information for automatically generating a random password in the attached file password 802, in this step, the information set in the attached file password is If it is a predetermined password, the process proceeds to step S107, and if it is information indicating that a password is automatically and randomly generated, the process proceeds to step S120. In the case of this other determination method, although not shown in the flowchart, if there is no destination in the password table 800, the process proceeds to step S120.

  In step S107, the mail generation unit 309 extracts the attachment file of the e-mail received in step S101. In step S108, the mail generation unit 309 specifies the attachment file extracted in step S107 in step S105. Set a password.

  In step S109, the mail generation unit 309 attaches the attached file in which the password is set in step S108 to the electronic mail again.

  In step S110, the password notification mail generation unit 312 determines whether or not to notify an e-mail that notifies only the password set in the attached file for the first time to the destination. If it is not determined to notify for the first time, the process proceeds to step S114.

  In this step, every time an e-mail is sent, a predetermined password is notified once (first time) without sending a predetermined password notification mail, and thereafter, the transmission of the notification mail is stopped. Is possible.

  As a result, there are effects such as password leakage, oversight of e-mail accompanying increase in the number of received e-mails, and reduction of communication load.

  This determination can be made by referring to the use date / time of the password table 800. If the use date / time is set as blank, only the password set in the attached file is notified for the first time. It is determined that an e-mail is to be notified, and the process proceeds to step S111. If the date / time is set as the use date / time, the process proceeds to step S114.

  The determination in this step is based on whether or not notification is made for the first time. However, the determination is made based on whether or not the user has notified the password used when exchanging e-mails with each other a predetermined number of times. May be.

  In this case, the use count item may be added to the password table 800, and the count may be incremented each time the password is used. For example, the increment is performed after the process of step S113.

  In step S111 shown in FIG. 5, the password notification mail generation unit 312 notifies only the password set in the attached file to which a predetermined password is output using the destination acquired in step S104 and the password specified in step S105. Generate an email to As described above, one example of this e-mail has the configuration shown in FIG.

  In step S112, the e-mail information of the generated e-mail is stored in the e-mail information table 900 by the e-mail storage unit 304, and the target e-mail transmission status is set to excluded.

  In step S113, the server mail transmission unit 310 transmits the e-mail generated in step S109 to the destination (including the CC). After that, in step S114, the server mail transmission unit 310 generates the e-mail in step S111. An e-mail notifying only the password set in the attached file is transmitted to the destination (including CC). In this step, the date of transmission is stored in the use date and time of the password table 800.

  In step S115, the password notification mail generating unit 312 determines whether or not a predetermined period has elapsed since the previous use of the predetermined password. If it is determined that the predetermined period has elapsed, the process proceeds to step S116, If it is not determined that the period has elapsed, the process proceeds to step S120.

  In step S116, the password notification mail generation means 312 uses the destination acquired in step S104 and the password specified in step S105 to output an e-mail notifying only the password set in the attached file to which a predetermined password has been output. Generate. As described above, one example of this e-mail has the configuration shown in FIG. In this step, the fact that a predetermined period has elapsed may be additionally output to this configuration to prevent user confusion.

  In step S117, the e-mail information of the generated e-mail is stored in the e-mail information table 900 by the e-mail storage unit 304, and the target e-mail transmission status is set to excluded.

  In step S118, the server mail transmission means 310 transmits the electronic mail generated in step S109 to the destination (including CC). In step S119, the server mail transmission means 310 transmits the attached file generated in step S116. An e-mail notifying only the password set in is sent to the destination (including CC). In this step, the date of transmission is stored in the use date and time of the password table 800.

  In step S120, the server mail transmission unit 310 transmits the electronic mail acquired in step S101 to the destination (including CC).

  In step S121, the password notification mail generating unit 312 generates a random password such as a one-time password. In step S122, the mail generating unit 309 extracts the attached file of the email received in step S101, and step S123. Then, the mail generation unit 309 sets the password generated in step S121 for the attached file extracted in step S122.

  In step S124, the mail generation unit 309 attaches the attached file in which the password is set in step S107 to the electronic mail again.

  In step S125, the password notification mail generation unit 312 uses the destination acquired in step S104 and the password generated in step S121 to output an e-mail notifying only the password set in the attached file to which the generated password is output. Generate. As described above, one example of this e-mail has the configuration shown in FIG.

  In step S126, the e-mail information of the generated e-mail is stored in the e-mail information table 900 by the e-mail storage unit 304, and the target e-mail transmission status is set to excluded.

  In step S127, the server mail transmission unit 310 transmits the electronic mail generated in step S124 to the destination (including the CC), and then in step S128, the server mail transmission unit 310 generates in step S125. An e-mail notifying only the password set in the attached file is transmitted to the destination (including CC).

  In the first embodiment of the present invention, the password is applied only to the destination, but the password may be applied to the mail address included in the CC. In this case, in step S104, the password setting determination unit 308 acquires the mail address set in the destination and CC from the electronic mail.

  In step S105, when the predetermined password setting 503 is set for the e-mail, the password setting determination unit 308 attaches the file corresponding to the destination acquired in step S104 or the e-mail address of the password table 800 corresponding to the CC. A password corresponding to the destination or CC is specified. If there is no e-mail address corresponding to the destination or CC in the password table 800, it is specified that there is no password corresponding to the destination or CC.

  Acquire a password for an attached file corresponding to the mail address in the password table 800 corresponding to the mail address set in the address or CC set in step S104, and correspond to the mail address set in the address or CC Specify the password to be used.

  If there is no mail address corresponding to the mail address set in the address or CC in the password table 800, it is specified that there is no password corresponding to the mail address set in the mail address or CC.

  The processing after step S106 is performed as many times as the number of mail addresses set in the destination or CC.

  That is, a password corresponding to the mail address set in the destination or CC is set for the attached file, and the attached file in which the password is set is attached to the e-mail.

  At this time, an e-mail with an attached file with a password set is generated for the number of e-mail addresses set in the destination or CC.

  Furthermore, an email is generated that notifies only the password set in the attached file in accordance with the password corresponding to the mail address set in the destination or CC by the number of mail addresses set in the destination or CC. To each destination or mail address set in the CC.

  When taking such an aspect, basically, when there is no e-mail address corresponding to the e-mail address set in the password table CC or the destination, it is determined in step S121 and subsequent steps that the e-mail address is determined not to exist. Alternatively, a random password is generated for each e-mail address set in the CC, and an e-mail notifying only the password set in the attached file is generated and set in the destination or the CC Send to email address.

  Similarly, when there are a plurality of destinations, it is needless to say that the processing is performed as many as the number of mail addresses set as the destinations. The same applies when there are a plurality of mail addresses set in the CC.

[Second Embodiment]
Next, the second embodiment will be described. Since the configuration and processing are substantially the same as those of the first embodiment, the same configuration and processing will be described below using the same reference numerals.

  In the first embodiment, the password to be used is applied according to the destination address of the e-mail. However, in the second embodiment, the e-mail source and destination e-mail addresses are used. And apply the password to be used.

  The first embodiment is different from the first embodiment in that items of mail address_1 and mail address_2 are added to the configuration of the password table 800 shown in FIG. 11 as shown in FIG. Address_2 is the same item as the mail address in the password table 800. That is, an item of mail address_1 is added to the password table 800 shown in FIG.

  In the password notification mail transmission process shown in FIG. 4 using the password table 1000, in step S104, the password setting determination unit 308 obtains the address and the mail address of the transmission source when acquiring the address from the e-mail. get.

  In step S105, the password setting determination unit 308 acquires the attached file password corresponding to the email address_1 and the email address_2 of the password table 1000 corresponding to the combination of the destination and the transmission source acquired in step S104. Specify the password corresponding to the destination. If there is no mail address_1 and mail address_2 corresponding to the combination of the destination and the transmission source in the password table 1000, it is specified that there is no password corresponding to the combination of the destination and the transmission source.

  In the processing after step S107, processing is performed using the password corresponding to the combination of the destination and the transmission source specified in step S104.

[Third Embodiment]
Next, the third embodiment will be described. Since the configuration and processing are substantially the same as those of the first and second embodiments, the same reference numerals are used for the same configuration and processing. Hereinafter, explanation will be given.

  The difference from the first embodiment and the second embodiment is that processing for sending a reminder email is performed in step S102, but a predetermined password is used between those who frequently exchange emails on a daily basis. When operating, there is often no need to send a password reminder email set in the attached file.

  Therefore, in step S102, when the reminder mail generation unit 306 cannot identify the email information that is expected to be notified of the password, the destination address of the email information exists in the email address of the password table. The reminder e-mail 600 is not generated, and the target e-mail information transmission status of the e-mail information is set to not applicable.

[Fourth Embodiment]
Next, the fourth embodiment will be described. Since the configuration and processing are substantially the same as those of the first to third embodiments, the same configuration and processing will be described using the same reference numerals. I do.

  The difference from the first to third embodiments is that a destination user who has received an e-mail having an attached file with a password set can prompt the notification of the password.

  When the destination is the external client terminal 107, the user of the external client terminal 107 has not received an e-mail for notifying this password after receiving an e-mail having an attached file with a password set. Alternatively, it is effective when it is unclear which e-mail is received.

  Similar to the client terminal 101, the external client terminal 107 includes a client mail transmission unit 301 and a client mail reception unit 302. The client mail reception unit 302 includes an electronic file having an attached file with a password set from the client terminal 101. Receive email. An electronic mail such as a mail creation screen 400 shown in FIG. 6 is received.

  The external client terminal 107 selects the e-mail from the received e-mail list screen (not shown), displays the e-mail creation screen 400, and prompts the e-mail body 404 for the password of the attached file. After inputting the information shown, the transmission button 406 is pressed.

  Then, in step S100 shown in FIG. 4, when the internal mail server 104 receives the electronic mail by the server mail receiving unit 303, the internal mail server 104 stores the received electronic mail in the electronic mail information table 900 by the mail storage unit 304. Not sent is set in the reminder mail transmission status.

  Then, before entering step S101, the process proceeds to step S201 shown in FIG. The flowchart shown in FIG. 15 is a modification of the e-mail password notification process shown in FIG.

  In step S201, the password setting determination unit 308 determines whether or not the received e-mail is a password reminder mail. If it is determined that the received e-mail is a password reminder mail, the process proceeds to step S202, and the password is determined. If it is not determined to be a reminder mail, the process proceeds to step S101 shown in FIG.

  As a method for determining whether or not it is a password reminder email in this step, first, an electronic mail having an email ID that matches the email ID (using Message-id) of the reminder email and having an attached file with a password set E-mail information related to mail is acquired from the e-mail information table 900.

  Then, for example, in the mail body of the mail creation screen 400 shown in FIG. 14, a standard document (for example, tell me the password of the attached file) indicating that it is a reminder mail or a standard ID (for example, A0001) (That is, using the mail text of the e-mail information), and the password setting determination means 308 analyzes whether the document and the ID are standard or not.

  14 is provided with a password notification button 409, and when the user presses the password notification button 409, an e-mail text 404 indicating a standard document or ID is automatically generated, Transmission to the internal mail server 104 is also possible.

  In step S202, the password setting determination unit 308 determines whether an email for notifying the password of the attached file has already been manually transmitted. If it is determined that the mail has not been manually transmitted, the process proceeds to step S203. If it is determined that it has been transmitted manually, the process proceeds to step S205.

  In the determination method in this step, the same email ID as the reminder email (the same email ID as the email having the attached file with the password) is set in the related email ID of the email information table 900 shown in FIG. For example, it can be determined that an e-mail for notifying the password has already been sent, so if the e-mail for notifying the password has already been sent and the sending status of the reminder e-mail has been sent manually, the password must be changed. If it is determined that the e-mail for notification is transmitted manually and the manual e-mail has not been transmitted, it is not determined that the e-mail for notifying the password is transmitted manually.

  Note that in the e-mail information table 900 shown in FIG. 16, items of related mail ID and password are added to the e-mail information table 900 shown in FIG.

  In this related mail ID, in step S112 and step S117 in which a predetermined password notification mail is stored, and in step S126 in which the generated password notification mail is stored, e-mail information related to an e-mail for notifying a password is stored. The mail ID of the electronic mail information having the attached file in which the password is set is stored.

  Similarly, in each step, the password to be notified is stored in the password of the e-mail information table 900.

  In step S203, the password setting determination unit 308 acquires the password notified by the email for notifying the password from the password in the email information table 900.

  In step S204, the password notification mail generation means 312 generates an e-mail (for example, the e-mail shown in FIG. 9 or 10) for notifying the password using the password acquired in step S203, and transmits the server mail. The means 310 transmits the reminder mail to the external client terminal 107 that has transmitted it.

  In step S205, the server mail transmission unit 310 transmits the reminder mail to the client terminal 101 as it is.

[Fifth Embodiment]
Next, the fifth embodiment will be described. Since the configuration and processing are substantially the same as those of the first to fourth embodiments, the same configuration and processing will be described using the same reference numerals. I do.

  In the present embodiment, the e-mail information that is expected to be notified of the password is identified by the reminder e-mail determination unit 305 and is manually transmitted to the e-mail information table 900. However, such identification is not performed. That is, when the password can be acquired from the e-mail information table 900 when the password reminder mail is transmitted from the transmission destination without automatically transmitting the reminder mail as shown in the fourth embodiment, The system determines that an e-mail for notifying the password automatically has been sent, and returns an e-mail for notifying the password using the acquired password.

  Alternatively, if a password cannot be obtained from the e-mail information table 900, a password reminder mail may be sent to the sender as it is.

  As described above, according to the present invention, after an e-mail is transmitted, a predetermined password is notified by a destination e-mail address, so that e-mail transmission / reception can be performed flexibly while improving security. Can be planned.

  Further, although the present invention has shown the exchange of electronic mail performed between the client terminal 101 and the external client terminal 107, the present invention is not limited to this mode, and it is also possible to exchange electronic mail between the client terminals 101. It goes without saying that.

  Further, the present invention can take an embodiment as a method, a program, a storage medium, or the like.

  In this case, the program itself read from the recording medium realizes the novel function of the present invention, and the recording medium storing the program constitutes the present invention. As a recording medium for supplying the program, for example, a flexible disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD-R, DVD-ROM, magnetic tape, nonvolatile memory card, ROM, EEPROM, silicon A disk or the like can be used.

  Further, by executing the program read by the computer, not only the functions of the above-described embodiments are realized, but also an OS or the like operating on the computer based on an instruction of the program is a part of the actual processing or It goes without saying that the case where the functions of the above-described embodiments are realized by performing all of the above processing is also included.

  Furthermore, after the program read from the recording medium is written to the memory provided in the function expansion board inserted into the computer or the function expansion unit connected to the computer, the function expansion board is based on the instructions of the program code. It goes without saying that the case where the CPU or the like provided in the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

  Needless to say, the present invention can be applied to a case where the present invention is achieved by supplying a program to a system or apparatus. In this case, by reading a recording medium storing a program for achieving the present invention into the system or apparatus, the system or apparatus can enjoy the effects of the present invention.

  Furthermore, by downloading and reading a program for achieving the present invention from a server, database, etc. on a network using a communication program, the system or apparatus can enjoy the effects of the present invention. In addition, all the structures which combined each embodiment mentioned above and its modification are also included in this invention.

100 Information Processing System 101 Client Terminal 102 Administrator Client Terminal 103 Local Area Network (LAN)
104 internal mail server 105 wide area network 106 external mail server 201 CPU
202 RAM
203 ROM
204 System Bus 205 Input Controller 206 Video Controller 207 Memory Controller 208 Communication I / F (Interface) Controller 209 Input Unit 210 Display Device 211 External Memory

Claims (18)

An information processing apparatus that receives an e-mail transmitted from a client terminal,
And how to set the password for the e-mail attachment that is set in the client terminal, storage means for storing a password in accordance with the prior SL e-mail address,
And mail receiving means for receiving the electronic mail,
Password setting means for setting a password to the attached file of the e-mail according to the password setting method stored by the storage means;
A mail sending means for sending an e-mail file password is set is attached to the destination by the password setting means,
A password notification e-mail transmission unit that transmits an e-mail for password notification indicating the password set by the password setting unit to the destination after the e-mail is transmitted by the e-mail transmission unit;
A management means for managing a time related to transmission of an email for password notification using a password corresponding to the destination by the password notification mail transmitting means;
With
The password setting means acquires a password corresponding to the destination of the e-mail from the storage means by a password setting method indicating that a predetermined password is set for the e-mail attachment, and the e-mail attachment Set to
The password notification e-mail transmission means does not transmit a password notification e-mail until a predetermined period of time elapses, based on the time related to transmission of the password notification e-mail managed by the management means. After the elapse of the period, a password notification email indicating the same password as the password shown in the transmitted password notification email is sent.
The information processing apparatus according to claim and this.   The storage means stores a setting method including setting a predetermined password in an attached file of an e-mail or setting a random password as the password setting method. The information processing apparatus described. A password generation means for generating a random password is provided,
The password setting means sets the random password generated by the password generation means in the email attachment by a password setting method indicating that a random password is set in the email attachment.
The password notification e-mail transmission unit transmits an e-mail for password notification until a predetermined period elapses based on a time related to transmission of the e-mail for password notification indicating the predetermined password managed by the management unit. On the other hand, after elapse of a predetermined period, a password notification e-mail indicating the same password as the predetermined password indicated in the transmitted password notification e-mail is transmitted,
3. The information processing according to claim 2 , wherein the password notification e-mail transmission unit transmits an e-mail for password notification indicating the random password every time an e-mail is transmitted by the e-mail transmission unit. apparatus.   A password generation means for generating a random password is provided,
  The password setting means is generated by the password generation means when a password corresponding to the destination of the e-mail does not exist in the storage means by a password setting method indicating setting a predetermined password in the attached file of the e-mail. Set the random password to the email attachment,
  The password notification e-mail transmission unit transmits an e-mail for password notification until a predetermined period elapses based on a time related to transmission of the e-mail for password notification indicating the predetermined password managed by the management unit. On the other hand, after elapse of a predetermined period, a password notification e-mail indicating the same password as the predetermined password indicated in the transmitted password notification e-mail is transmitted,
  3. The information processing according to claim 2, wherein the password notification e-mail transmission unit transmits an e-mail for password notification indicating the random password every time an e-mail is transmitted by the e-mail transmission unit. apparatus.   The password setting method includes not setting a password in an email attachment;
  A password for notifying the sender of the e-mail of the password of the file attached to the e-mail when the password setting method of the storage means is not set for the attached file of the e-mail A reminder;
  The information processing apparatus according to claim 1, further comprising:   The password setting method includes not setting a password in an email attachment;
  A password for notifying the sender of the e-mail of the password of the file attached to the e-mail when the password setting method of the storage means is not set for the attached file of the e-mail With a reminder,
  The password prompting means does not notify the password sender corresponding to the destination of the email to the sender of the email stored in the storage means regarding the prompt for the password of the file attached to the email. The information processing apparatus according to claim 1, wherein the information processing apparatus is an information processing apparatus.   Password reminder receiving means for receiving a notification relating to a password reminder of a file attached to the email from the destination of the email;
  A password reply means for notifying the transmission destination of the reminder of the password set for the email related to the prompt for the password received by the password reminder receiving means;
  The information processing apparatus according to claim 1, further comprising:   The password reply means notifies the password sender of the file attached to the email from the destination to the sender of the email where the password set for the email related to the password prompt does not exist The information processing apparatus according to claim 7, wherein:   When the password notification email is sent by the password notification email sending means, the password reply means notifies the password set for the password prompting email to the destination of the prompting source,
  9. The information according to claim 7, wherein, when the password notification e-mail is not transmitted by the password notification e-mail transmission unit, the e-mail is sent to the e-mail destination related to the password prompt. 9. Processing equipment.   10. The information processing according to claim 1, wherein the password notification mail transmitting unit transmits the password notification e-mail related to the predetermined password to the destination only at the first transmission time. apparatus.   The storage means stores a password to be set for a file attached to an e-mail corresponding to a combination of e-mail transmission source and destination e-mail addresses,
  11. The password setting unit according to claim 1, wherein the password setting unit acquires a password corresponding to a combination of a destination and a transmission source of the e-mail received by the mail receiving unit from a password stored in the storage unit. The information processing apparatus according to claim 1.   The said password setting means sets each password with respect to the file attached to an e-mail, when a plurality of destinations of the e-mail received by the said e-mail receiving means are acquired. The information processing apparatus according to any one of claims.   When the password setting means obtains a plurality of destinations of the e-mail received by the mail receiving means, the password notification e-mail sending means displays each password indicating the password set by the password setting means for the number of destinations. The information processing apparatus according to claim 1, wherein an e-mail for notification is transmitted. An information processing system in which a plurality of client terminals that transmit and receive e-mail and an information processing apparatus are connected via a network,
The client terminal is
Client mail receiving means for receiving the e-mail from the mail transmitting means of the information processing apparatus ;
Client mail transmission means for transmitting the electronic mail to the information processing apparatus ;
With
The information processing apparatus includes:
And how to set the password for the e-mail attachment that is set in the client terminal, storage means for storing a password in accordance with the prior SL e-mail address,
And mail receiving means for receiving electronic mail from the client mail transmission means,
Password setting means for setting a password to the attached file of the e-mail according to the password setting method stored by the storage means;
And mail transmission means for transmitting the electronic mail configured file attached password to the client terminal identified by the destination by the password setting means,
A password notification e-mail transmission unit that transmits an e-mail for password notification indicating the password set by the password setting unit to the destination after the e-mail is transmitted by the e-mail transmission unit;
A management means for managing a time related to transmission of an email for password notification using a password corresponding to the destination by the password notification mail transmitting means;
With
The password setting means acquires a password corresponding to the destination of the e-mail from the storage means by a password setting method indicating that a predetermined password is set for the e-mail attachment, and the e-mail attachment Set to
The password notification e-mail transmission means does not transmit a password notification e-mail until a predetermined period of time elapses, based on the time related to transmission of the password notification e-mail managed by the management means. After the elapse of the period, a password notification email indicating the same password as the password shown in the transmitted password notification email is sent.
Information processing system comprising a call. A method of controlling an information processing apparatus that receives an email transmitted from a client terminal ,
The information processing apparatus includes:
Mail receiving step of receiving the electronic mail,
A method for setting a password for the attached file of the e-mail set in the client terminal, and a method for setting the attached file of the e-mail according to a password setting method stored by a storage unit that stores a password according to the destination of the e-mail Password setting step to set password to
Mail transmission step of transmitting an e-mail file password is set is attached by the password setting step to the destination,
A password notification email sending step for sending a password notification email indicating the password set by the password setting step to the destination after sending the email by the email sending step;
A management step for managing a time related to transmission of an email for password notification using a password corresponding to the destination in the password notification email transmission step;
With
The password setting step acquires a password corresponding to the destination of the e-mail from the storage unit by a password setting method indicating that a predetermined password is set for the e-mail attachment. Set to
The password notification e-mail transmission step does not transmit the password notification e-mail until a predetermined period elapses, based on the time related to the transmission of the password notification e-mail managed by the management step. A method for controlling an information processing apparatus , comprising: transmitting a password notification e-mail indicating a password identical to the password indicated in the transmitted password notification e-mail after the period has elapsed . A program that can be read and executed by an information processing apparatus that receives an email transmitted from a client terminal ,
The information processing apparatus;
And mail receiving means for receiving the electronic mail,
And how to set the password for the e-mail attachment that is set in the client terminal, wherein the e-mail attachment according to the setting method of the stored passwords by storing means for storing a password in accordance with the prior SL e-mail address A password setting means for setting a password in the file;
A mail sending means for sending an e-mail file password is set is attached to the destination by the password setting means,
A password notification e-mail transmission unit that transmits an e-mail for password notification indicating the password set by the password setting unit to the destination after the e-mail is transmitted by the e-mail transmission unit;
A management means for managing a time related to transmission of an email for password notification using a password corresponding to the destination by the password notification mail transmitting means;
To function,
The password setting means acquires a password corresponding to the destination of the e-mail from the storage means by a password setting method indicating that a predetermined password is set for the e-mail attachment, and the e-mail attachment Set to
The password notification e-mail transmission means does not transmit a password notification e-mail until a predetermined period of time elapses, based on the time related to transmission of the password notification e-mail managed by the management means. period of time, after which, the program for causing to function as a sending e-mail password notification password identical to the password shown in the e-mail password notifications the transmission is shown. A method of controlling an information processing system in which a plurality of client terminals that perform transmission and reception of electronic mail and an information processing apparatus are connected via a network,
The client terminal is
A client mail receiving step for receiving the e-mail from the mail sending step of the information processing apparatus ;
A client mail transmission step of transmitting the electronic mail to the information processing apparatus ;
Including
The information processing apparatus includes:
Mail receiving step of receiving an e-mail from the client mail transmission step,
And how to set the password for the e-mail attachment that is set in the client terminal, wherein the e-mail attachment according to the setting method of the stored passwords by storing means for storing a password in accordance with the prior SL e-mail address Password setting step to set password to file,
Mail transmission step of transmitting an e-mail file password is set is attached by the password setting step to the client terminal identified by said destination,
A password notification email sending step for sending a password notification email indicating the password set by the password setting step to the destination after sending the email by the email sending step;
A management step for managing a time related to transmission of an email for password notification using a password corresponding to the destination in the password notification email transmission step;
Including
The password setting step acquires a password corresponding to the destination of the e-mail from the storage unit by a password setting method indicating that a predetermined password is set for the e-mail attachment. Set to
The password notification e-mail transmission step does not transmit the password notification e-mail until a predetermined period elapses, based on the time related to the transmission of the password notification e-mail managed by the management step. A method for controlling an information processing system , comprising: sending a password notification e-mail indicating a password identical to the password indicated in the transmitted password notification e-mail after the elapse of the period . A program that can be read and executed in an information processing system in which a plurality of client terminals that perform transmission and reception of electronic mail and an information processing apparatus are connected via a network,
The client terminal is
Client mail receiving means for receiving the e-mail from the mail transmitting means of the information processing apparatus ;
Client mail transmission means for transmitting the electronic mail to the information processing apparatus ;
To function,
The information processing apparatus;
And mail receiving means for receiving electronic mail from the client mail transmission means,
And how to set the password for the e-mail attachment that is set in the client terminal, wherein the e-mail attachment according to the setting method of the stored passwords by storing means for storing a password in accordance with the prior SL e-mail address A password setting means for setting a password in the file;
And mail transmission means for transmitting the electronic mail configured file attached password to the client terminal identified by the destination by the password setting means,
A password notification e-mail transmission unit that transmits an e-mail for password notification indicating the password set by the password setting unit to the destination after the e-mail is transmitted by the e-mail transmission unit;
A management means for managing a time related to transmission of an email for password notification using a password corresponding to the destination by the password notification mail transmitting means;
To function,
The password setting means acquires a password corresponding to the destination of the e-mail from the storage means by a password setting method indicating that a predetermined password is set for the e-mail attachment, and the e-mail attachment Set to
The password notification e-mail transmission means does not transmit a password notification e-mail until a predetermined period of time elapses, based on the time related to transmission of the password notification e-mail managed by the management means. period of time, after which, the program for causing to function as a sending e-mail password notification password identical to the password shown in the e-mail password notifications the transmission is shown.

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