JP5131494B2 - E-mail system and e-mail communication method - Google Patents

Description

The present invention relates to an electronic mail system , and more particularly, to an electronic mail system and an electronic mail communication method including a portable information terminal device having a spam mail preventing function .

  In recent years, communication by electronic mail using the Internet in a portable information terminal device such as a mobile phone has become widespread. However, when an e-mail address is known by another person or when it coincides with a randomly set e-mail address, a junk e-mail may be received. That is, as the communication by e-mail expands, the spam mail to the portable information terminal device increases, which is a social problem.

  In order to prevent such unwanted e-mails to the portable information terminal device, the carrier of the portable information terminal device causes the server that manages the portable information terminal device to register a source address or domain that the user desires to receive, etc. Measures are taken. However, in this case, the number of e-mail addresses that can be registered in the server is limited, and the above countermeasures lack flexibility. In addition, the user has to perform a complicated operation of accessing the server and registering many e-mail addresses.

  Therefore, as an e-mail system for more easily preventing junk mail, mail that is permitted to be received and mail that is refused to be received are automatically used using the destination address information registered in the address book of the mobile terminal. An e-mail system that can be determined is disclosed (see, for example, Patent Document 1).

JP 2003-263392 A

  However, in the above e-mail system, it is possible to prevent junk e-mail reception by automatically judging e-mails that are permitted to be received and e-mails that are refused to be received. In order to notify other users, the new address after the change is used as the source address. For this reason, the mail address change notification mail cannot be transmitted to the user of the portable information terminal device that has set an e-mail address that can be received in order to prevent the reception of junk mail.

  In addition, when the forwarded mail service is used, if there is no change in the public email address, there is no need to send a change notification email to the other party, but you will always have multiple email addresses. From the viewpoint of maintenance of the portable information terminal device carrier, it is not very desirable.

Therefore, the present invention has been made in view of the above-mentioned problems of the portable information terminal device used in the conventional electronic mail system, and the object of the present invention is to provide an electronic mail from a new address even after the electronic mail address is changed. To provide a new and improved e-mail system and e-mail communication method capable of notifying a mobile information terminal device that has been set to reject e-mail by e-mail .

In order to solve the above-described problem, according to a first aspect of the present invention, in an electronic mail system that transmits and receives electronic mail via an electronic mail server, the transmission source communication terminal includes at least two transmission source mail addresses. An electronic mail is transmitted to a transmission destination communication terminal, and the transmission destination communication terminal uses one transmission mail address of the at least two transmission mail addresses as a transmission source of the electronic mail, and another one transmission mail. An address is processed as a reply destination, and whether or not the electronic mail can be received is determined using the one sender mail address .

According to a second aspect of the present invention, in an electronic mail system that transmits and receives electronic mail via an electronic mail server, the electronic mail server receives an electronic mail including at least two transmission source mail addresses from a transmission source communication terminal. Upon receipt, the mail server sends the email header information including the at least two sender email addresses to the destination communication terminal of the email, and the email server determines whether the email server receives the at least one response received from the destination communication terminal. One of the two sender mail addresses is processed as a reply mail address .

According to the third aspect of the present invention, when an e-mail server that transmits and receives e-mails receives an e-mail including at least two source e-mail addresses from a source communication terminal, the e-mail server receives the e-mails from the source communication terminal. In accordance with the first control means for transmitting the included mail header information to the destination communication terminal of the e-mail, and the response indicating whether the e-mail is received from the destination communication terminal, the e-mail server includes the at least two source e-mail addresses. And second control means for processing one of them as a reply mail address .

According to a fourth aspect of the present invention, in the method for transmitting and receiving e-mails via an e-mail server, the source communication terminal transmits an e-mail including at least two source e-mail addresses to the destination communication terminal, The transmission destination communication terminal processes one of the at least two transmission source mail addresses as the transmission source of the e-mail and the other transmission source mail address as a return destination , and transmits the one transmission Whether or not the electronic mail can be received is determined using the original mail address .

According to a fifth aspect of the present invention, in the communication method of the email server for sending and receiving emails, when the email server receives an email including at least two sender email addresses from the sender communication terminal, Email header information including at least two sender email addresses is sent to the destination communication terminal of the email, and the email server sends the at least two senders in accordance with the reception acceptability response received from the destination communication terminal. One of the mail addresses is processed as a reply mail address .

According to the sixth aspect of the present invention, in the program for causing a computer to function as an e-mail server for sending and receiving e-mails, the first control means receives an e-mail including at least two source e-mail addresses from the source communication terminal. Then, according to the function of transmitting the mail header information including the at least two transmission source mail addresses to the transmission destination communication terminal of the electronic mail, the second control unit receives the reception propriety response received from the transmission destination communication terminal, The computer is caused to function as an e-mail server having a function of processing one of the at least two sender mail addresses as a reply mail address .

As described above, according to the present invention, even after the e-mail address is changed, it is possible to notify the mobile information terminal device set to reject e-mail reception from the new address by e-mail. .

FIG. 1 is a block diagram for explaining the overall configuration of an electronic mail system including a portable information terminal device according to the first embodiment of the present invention. FIG. 2 is an internal configuration diagram for simplifying and describing the internal configuration of the portable information terminal device according to the embodiment. FIG. 3 is an internal configuration diagram for simplifying and explaining the internal configuration of an e-mail server used in the e-mail system including the portable information terminal device according to the embodiment. FIG. 4 is a flowchart showing an e-mail transmission operation of the e-mail system including the portable information terminal device in the embodiment. FIG. 5 is a flowchart showing an e-mail receiving operation of the e-mail system including the portable information terminal device according to the embodiment.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

(First embodiment)
First, the configuration of an electronic mail system including a portable information terminal device according to the first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram for explaining the overall configuration of an electronic mail system including a portable information terminal device according to the first embodiment of the present invention, and FIG. FIG. 3 is an internal configuration diagram for simplifying and explaining the internal configuration, and FIG. 3 illustrates the internal configuration of an electronic mail server used in the electronic mail system including the portable information terminal device according to the present embodiment in a simplified manner. FIG.

  As shown in FIG. 1, an electronic mail system 100 including a portable information terminal device according to the present embodiment includes a portable information terminal device 102, 104 such as a mobile phone, a wireless network 106, a base station 108, an Internet network 110, an electronic mail. A transmission control server 112, an e-mail reception control server 114, and a computer 116 such as a personal computer (PC) are included.

  In addition to the function of the telephone, the portable information terminal devices 102 and 104 pass e-mails via the e-mail transmission control server 112 and e-mail reception control server 114 after passing through the wireless network 106, the base station 108, and the Internet network 110. The mechanism which transmits / receives is provided.

  A base station 108, a computer 116 such as a personal computer (PC), an e-mail transmission control server 112, an e-mail reception control server 114, and the like are connected to the Internet network 110. For example, for e-mail, standard e-mail on the Internet is used. Mail is transmitted and received according to protocols (SMTP, POP3, etc.).

  As shown in FIG. 2, the portable information terminal apparatuses 102 and 104 according to the present embodiment have an e-mail transmission client program 120, an e-mail transmission client database 122, an e-mail reception client program 124, and e-mail addresses of transmission destinations. A telephone book 126 is provided as a registered destination e-mail address storage means.

  The e-mail transmission client database 122 stores e-mail addresses that can be used as e-mail transmission sources as means for storing e-mail addresses of the portable information terminal device 102 that is the transmission source. In the present embodiment, the e-mail transmission client database 122 can register both the old e-mail address before the change and the new e-mail address after the change as a source e-mail address for a certain period. . Then, after the elapse of the predetermined period, usually only one e-mail address currently used is registered.

  The e-mail transmission client program 120 functions as a transmission source e-mail address selection unit, and a transmission source e-mail address to be attached to an e-mail when an e-mail is transmitted is registered in the e-mail transmission client database 122 described above. Select from multiple source email addresses.

  The e-mail receiving client program 124 can access the telephone book 126 serving as a destination e-mail address storage unit in which the destination e-mail address is registered. In addition, it has a function as a destination e-mail address determination unit that determines whether or not an e-mail destination is an e-mail address registered in the telephone book 126 when receiving an e-mail. The operation of the e-mail receiving client program 124 as the destination e-mail address determining means will be described later.

  As shown in FIG. 3, the e-mail transmission control server 112 and the e-mail reception control server 114 of this embodiment include an e-mail transmission server program 132 and an e-mail reception server program 134 for controlling the operation of each server. . Further, both the e-mail transmission control server 112 and the e-mail reception control server 114 can use commercially available server devices. For example, the well-known UNIX (registered trademark) or Windows (registered trademark) NT can be used as the OS. is there. In this embodiment, the e-mail transmission control server 112 and the e-mail reception control server 114 are provided as separate servers. However, the e-mail transmission server program 132 and the e-mail reception server program 134 are provided on the same server. Both may be substituted for a single server.

  Next, the operation of sending and receiving e-mail in the e-mail system including the portable information terminal device according to the present embodiment will be described with reference to the drawings. FIG. 4 is a flowchart showing an e-mail transmission operation of the e-mail system including the portable information terminal device in the present embodiment, and FIG. 5 is an electronic diagram of the e-mail system including the portable information terminal device in the present embodiment. It is a flowchart which shows the operation | movement of mail reception. 4 and 5, an operation when an electronic mail is transmitted from the portable information terminal device 102 serving as a transmission source to the portable information terminal 104 serving as a transmission destination will be described.

  As shown in FIG. 4, first, the user checks whether or not to update the e-mail address (S10). When the user updates the e-mail address, a procedure for changing the e-mail address from the old address to the new address using the portable information terminal device 102 is performed. At this time, when the new address is determined, the e-mail transmission client program 120 in the portable information terminal device 102 additionally registers the new address in the e-mail transmission client database 122 in which the old address is registered (S12).

  When an e-mail is transmitted using the e-mail transmission client program 120 (S14), the e-mail transmission client program 120 searches the e-mail transmission client database 122 (S16).

  If there are a plurality of registered e-mail addresses, the user is prompted to select an e-mail address (S18), and the address selected by the user is [From] in the mail header that becomes the entry column for the source e-mail address. Input into the field (S20). Then, after inputting the new address acquired when the user updates the e-mail address in the [Return-Path] or [Reply-To] field of the outgoing mail header which becomes the entry column of the reply destination e-mail address (S22). ) And send an e-mail (S24).

  If there is only one registered e-mail address, this e-mail address is entered in the [From] field of the mail header, which is the entry column for the source e-mail address (S26). After that, in this case, since the received email address is the new address after the change, the [Return-Path] and [Reply-To] fields of the outgoing email header that is the entry field for the reply email address A new address is input (S28), and an e-mail is transmitted (S24).

  When the e-mail transmitted from the portable information terminal device 102 is transmitted to the e-mail transmission control server 112 via the wireless network 106, the base station 108, and the Internet network 110, the e-mail included in the e-mail transmission control server 112 The transmission server program 132 transmits an electronic mail transmitted from the portable information terminal device 102 to the electronic mail reception control server 114 via the Internet network 110.

  When the e-mail is transmitted to the e-mail reception control server 114, the e-mail reception server program 134 provided in the e-mail reception control server 114 uses a mail header including the transmission source e-mail address as shown in FIG. The portable information terminal device 104 is inquired of whether or not reception is possible (S30).

  The e-mail receiving client program 124 provided in the portable information terminal device 104 receives an e-mail header including the transmission source e-mail address (S32). Thereafter, the e-mail receiving client program 124 provided in the portable information terminal device 104 that has received the e-mail receives the source e-mail address input in the [From] field included in the e-mail header that is the entry field of the source e-mail address. A search is performed to determine whether or not the phone book 126 provided in the portable information terminal device 104 exists (S34).

  Thereafter, the e-mail receiving client program 124 determines whether or not the transmission source e-mail address input in the [From] field included in the e-mail header exists in the telephone book 126 (S36).

  If the sender e-mail address input in the [From] field exists in the telephone book 126, a message indicating that mail can be received is transmitted to the e-mail reception control server 114 (S38). If the source e-mail address does not exist in the telephone book 126, a message indicating that mail cannot be received is transmitted to the e-mail reception control server 114 (S42). That is, in this embodiment, the e-mail receiving client program 124 serves as a determination result transmitting unit that transmits a determination result as to whether or not the transmission source e-mail address exists in the telephone book 126 to the e-mail reception control server 114. It also has a function.

  The e-mail receiving server program 134 that has received the message from the portable information terminal 104 transmits the e-mail to the portable information terminal device 104 if the message can be received (S40). In other words, the portable information terminal device 104 as the transmission destination receives a message from the electronic mail reception control server 114.

  However, if the message cannot be received, an error message is transmitted to the e-mail address input in [Return-Path] of the transmission mail header that becomes the entry field for the reply destination e-mail address (S44). That is, an error message is transmitted from the e-mail reception control server 114 to the portable information terminal device 102 that is the transmission source of the message.

  Note that the e-mail transmission client program 120 in the portable information terminal apparatus 102 deletes the old address, which is the e-mail address before the change, from the e-mail transmission client database 122 by the user's intention after a certain period. Note that after the end of the predetermined period, the old address before the change is deleted from the e-mail transmission client database 122 by the e-mail transmission client program 120 or the e-mail transmission control server 112 to make it unusable. .

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  For example, in the above-described first embodiment, an example in which the portable information terminal device is applied to a mobile phone is described. However, the present invention is applicable to personal information terminal devices (PDAs), portable notebook PCs, and the like. The present invention can also be applied to other portable information terminal devices having a function of transmitting / receiving electronic mail.

  In the first embodiment, reference is made to transmission / reception of e-mails. However, the present invention is not limited to implementation of e-mails, and telephones are registered in the phone book in the portable information terminal by using the same means. You can reject calls from unnumbered numbers.

  Further, in the first embodiment, the management of the old address before the change and the new address after the change, and the management for a certain period of time that can be used properly for these addresses are performed by the e-mail serving as the source e-mail address selection means. Although controlled by the transmission client program 120, it is also possible to adopt a configuration that is performed by the e-mail transmission control server 112.

  The present invention can be applied to a portable information terminal device such as a cellular phone, and in particular, can be applied to a portable information terminal device having a function of transmitting / receiving electronic mail.

DESCRIPTION OF SYMBOLS 100 E-mail system 102, 104 Portable information terminal device 106 Wireless network 108 Base station 110 Internet network 112 E-mail transmission control server 114 E-mail reception control server 116 Computer 120 E-mail transmission client program 122 E-mail transmission client database 124 E-mail reception Client program 126 Phone book 132 E-mail sending server program 134 E-mail receiving server program

Claims (8)

An email system for sending and receiving emails via an email server,
The transmission source communication terminal transmits an email including at least two transmission source mail addresses to the transmission destination communication terminal,
The transmission destination communication terminal processes one of the at least two transmission source mail addresses as a transmission source of the e-mail and another one of the transmission source mail addresses as a return destination , Use the sender email address to determine whether the email can be received ,
An e-mail system characterized by that. In the transmitted e-mail, the source e-mail address before the change of the source communication terminal and the source e-mail address after the change are entered in the source address entry column and the reply destination address entry column, respectively. The electronic mail system according to claim 1 . An email system for sending and receiving emails via an email server,
When the electronic mail server receives an electronic mail including at least two transmission source mail addresses from the transmission source communication terminal, the electronic mail server transmits mail header information including the at least two transmission source mail addresses to the transmission destination communication terminal of the electronic mail. And
The e-mail server treats one sender e-mail address of the at least two sender e-mail addresses as a sender of the e-mail and the other one sender e-mail address as a reply destination, and the destination communication terminal Reply processing is performed according to the reception acceptability response received from
An e-mail system characterized by that. The electronic mail system according to claim 3 , wherein the electronic mail server transmits the electronic mail to the transmission destination communication terminal when receiving an acceptance response from the transmission destination communication terminal. An email server for sending and receiving emails,
A first control unit that, upon receiving an electronic mail including at least two transmission source mail addresses from the transmission source communication terminal, transmits mail header information including the at least two transmission source mail addresses to the transmission destination communication terminal of the electronic mail; ,
Of the at least two sender email addresses, one sender email address is treated as the sender of the e-mail, the other sender email address is treated as a reply destination, and the reception availability received from the destination communication terminal A second control means for performing a reply process according to the response;
An e-mail server characterized by comprising: A method for sending and receiving e-mails via an e-mail server,
The source communication terminal sends an email containing at least two source email addresses to the destination communication terminal;
The transmission destination communication terminal processes one of the at least two transmission source mail addresses as the transmission source of the e-mail and the other transmission source mail address as a return destination , and transmits the one transmission Use the original email address to determine whether the email can be received ,
An electronic mail communication method. A communication method of an email server for sending and receiving emails,
When the electronic mail server receives an electronic mail including at least two transmission source mail addresses from the transmission source communication terminal, the electronic mail server transmits mail header information including the at least two transmission source mail addresses to the transmission destination communication terminal of the electronic mail. ,
Of the at least two sender email addresses, one sender email address is treated as the sender of the e-mail, the other sender email address is treated as a reply destination, and the reception availability received from the destination communication terminal Reply processing according to the response,
An electronic mail communication method. A program that causes a computer to function as an email server for sending and receiving emails,
When the first control means receives an electronic mail including at least two transmission source mail addresses from the transmission source communication terminal, the first control means transmits mail header information including the at least two transmission source mail addresses to the transmission destination communication terminal of the electronic mail. Function and
The second control means treats one sender email address of the at least two sender email addresses as the sender of the electronic mail and the other sender email address as a reply destination, and the destination communication terminal A function to perform a reply process according to a response indicating whether or not received from
A program for causing the computer to function as an e-mail server including:

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