WO2001091391A1 - Serveur de courrier, systeme et procede de gestion de courrier electronique, et support d'enregistrement - Google Patents

Serveur de courrier, systeme et procede de gestion de courrier electronique, et support d'enregistrement Download PDF

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Publication number
WO2001091391A1
WO2001091391A1 PCT/JP2000/004953 JP0004953W WO0191391A1 WO 2001091391 A1 WO2001091391 A1 WO 2001091391A1 JP 0004953 W JP0004953 W JP 0004953W WO 0191391 A1 WO0191391 A1 WO 0191391A1
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WO
WIPO (PCT)
Prior art keywords
mail
same
unit
mails
database
Prior art date
Application number
PCT/JP2000/004953
Other languages
English (en)
Japanese (ja)
Inventor
Ryutaro Hotta
Susumu Yoshida
Takanori Amano
Original Assignee
E-Jan Net Co.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by E-Jan Net Co. filed Critical E-Jan Net Co.
Priority to AU60243/00A priority Critical patent/AU6024300A/en
Publication of WO2001091391A1 publication Critical patent/WO2001091391A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/10—Office automation; Time management
    • G06Q10/107—Computer-aided management of electronic mailing [e-mailing]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/42—Mailbox-related aspects, e.g. synchronisation of mailboxes

Definitions

  • the present invention relates to a mail management server, a mail management system having a mail management server, a mail management method for managing mail, and a recording medium for managing mail.
  • the present invention relates to a mail management server that stores and manages and provides e-mail (hereinafter, referred to as mail), a mail management system having a mail management server, a mail management method, and a recording medium that stores a program for managing mail.
  • This application is related to the following Japanese patent application. For those designated countries that are permitted to be incorporated by reference to the literature, the contents described in the following application are incorporated into this application by reference and are incorporated as a part of the description of this application.
  • an object of the present invention is to provide a mail management system, a mail management server, and a mail management method that can solve the above problems. This object is achieved by a combination of features described in the independent claims.
  • the e-mail management server stores a registered user database storing the e-mail address of the e-mail owned by the registered user as a registered address in association with a user ID for identifying the registered user registered in the e-mail management server;
  • a mail receiving unit that receives the mail, an address authentication unit that determines whether at least one of the addresses of the destination and the source of the e-mail is a registered address stored in the registered user database, If at least one of the destination address and the source address of the e-mail is a registered address, the e-mail database that stores the e-mail and the e-mail that requests the e-mail stored in the e-mail database
  • a request receiving unit that receives request information from a user and an e-mail indicated by the mail request information are provided. And having a providing unit.
  • the e-mail includes password information for identifying the registered user, and the mail management server may further include a password information authentication unit that authenticates the password information included in the email received by the mail receiving unit.
  • the e-mail may be stored in the mail database when the e-mail receiving unit receives the e-mail and the personal identification information authentication unit authenticates the personal identification information.
  • the registered user database may further store a password in association with the user ID, and the mail management server may further include a password authentication unit that authenticates a password corresponding to the user ID.
  • the password authentication unit may authenticate the password of the user, and when the password authentication unit authenticates the password of the registered user, the providing unit: An e-mail indicated by the e-mail request information may be provided.
  • the mail request information may include password information for identifying the registered user.
  • the password information authentication unit may authenticate the password information included in the e-mail received by the request receiving unit.
  • the mail management server has the same mail detection unit that detects emails containing the same text from multiple emails, and the text deletion that deletes at least the text of at least one of the emails detected by the same mail detection unit. And a unit.
  • the mail database stores the e-mail whose body has been deleted by the body deletion part. If the e-mail received by the receiver and the e-mail held in the mail database contain the same body, the body deletion part The body contained in one of the e-mail and the e-mail held in the mail database may be deleted.
  • the same mail detection unit detects the same mail content extracted from the same mail candidate extraction unit that extracts e-mail candidates that include the same text and the same mail content extracted from the same mail extraction unit.
  • the same mail extraction unit may be included.
  • the mail management server may further include a unique information generation unit that generates unique body information of the body of the electronic mail.
  • the same mail candidate extraction unit may extract an e-mail having the same body unique information from a plurality of e-mails.
  • the same mail candidate extraction unit may extract an e-mail having the same transmission source from a plurality of e-mails.
  • the same mail candidate extraction unit may extract electronic mails having the same transmission time from a plurality of electronic mails.
  • the same mail catching and extracting unit may extract e-mails having the same body size from a plurality of e-mails.
  • the same email catching and extracting unit includes: first identical email candidate extraction means for extracting, from a plurality of emails, emails each having the same unique text body information as the unique email body; A second identical e-mail sample extraction unit for extracting an e-mail having the same sender from the e-mail extracted by the e-mail extraction unit and a second identical e-mail candidate extraction unit Third electronic mail candidate extracting means for extracting electronic mails having the same transmission time from the extracted electronic mails may be included.
  • the same mail candidate extraction unit may extract, from a plurality of e-mails, two e-mails whose time difference received by the mail reception unit is within a predetermined range of time.
  • the mail management server may further include an identification information providing unit for providing identification information for identifying the text of the received e-mail.
  • the identification information adding unit may add the same identification information to the e-mail including the same text detected by the same mail detection unit, and the text deletion unit may set at least one of the e-mails having the same identification information. Email body You can delete it.
  • the e-mail receiving unit may receive the e-mail, and further include a deletion unit for deleting the received e-mail when the same e-mail as the received e-mail is stored in the mail database.
  • the mail database may store at least the email with the body removed.
  • the mail management server extracts the deleted body from the mail database and sends the extracted body to the electronic mail. It may further include a text embedding part to be embedded in the mail.
  • the providing unit may provide the electronic mail with the text embedded.
  • a mail management server for managing e-mail, the e-mail possessed by the registered user being associated with a user ID for identifying a registered user registered in the e-mail management server.
  • the registered user database that stores the e-mail address of the e-mail as a registered address, the e-mail receiving unit that receives the e-mail, and at least one of the e-mail destination address and the source address
  • An address authentication unit that determines whether the registered address is a registered address, and a mail that stores an e-mail when at least one of an e-mail destination address and a sender address is a registered address.
  • a database, and a request receiving unit that receives mail request information for requesting e-mail stored in the mail database from the user.
  • a providing unit for providing an e-mail indicated by the mail request information.
  • the electronic device may further include a password information authentication unit that authenticates password information included in the e-mail received by the mail receiving unit. If the e-mail receiving unit receives the e-mail and the personal identification information authentication unit authenticates the personal identification information, the mail database may store the e-mail. The registered user database may further store a password in association with the user ID. A password authentication unit that authenticates a password corresponding to the user ID may be further provided.
  • the request receiving unit receives the e-mail request information from the user
  • the password authentication unit and the authentication unit authenticate the user's password
  • the password authentication unit authenticates the registered user's password
  • the providing unit An electronic mail indicated by the mail request information may be provided.
  • the password information authentication unit may authenticate password information included in the received e-mail.
  • a same-mail detection unit that detects an e-mail containing the same text from multiple e-mails; and a text deletion unit that deletes at least the text of at least one of the e-mails detected by the same e-mail detection unit. May further have.
  • the mail database may store the e-mail with the body deleted.
  • the body deletion unit deletes the body contained in either the received e-mail or the e-mail held in the mail database. Is also good.
  • the same mail detection unit detects the same mail candidate extraction unit that extracts e-mails containing the same body text, and detects an e-mail whose body content is the same from the e-mails extracted by the same mail candidate extraction unit.
  • the same mail extraction unit may be included.
  • It may further include a unique information generation unit that generates unique body information unique to the body of the e-mail.
  • the same e-mail sample extraction unit may extract e-mails having the same body unique information from a plurality of e-mails.
  • the same mail candidate extraction unit may extract an e-mail having the same transmission source from a plurality of e-mails.
  • the same-mail-sentence extraction unit may extract electronic mails having the same transmission time from a plurality of electronic mails.
  • the same mail catching and extracting unit may extract e-mails having the same body size from a plurality of e-mails.
  • the same mail candidate extraction unit is configured to: extract, from a plurality of e-mails, e-mails having the same body-specific information unique to the body of the e-mail, and a first same-email candidate extraction unit;
  • the same sending source is extracted from the e-mail extracted by the means
  • the second identical e-mail candidate extracting means for extracting the e-mail is the same as the transmission time from the e-mail extracted by the second e-mail candidate extracting means
  • third means for extracting the same email is configured to: extract, from a plurality of e-mails, e-mails having the same body-specific information unique to the body of the e-mail, and a first same-email candidate extraction unit;
  • the same sending source is extracted from the e-mail extracted by the means
  • the second identical e-mail candidate extracting means for extracting the e-mail is the same as the transmission time from the e-mail extracted by the second e-mail candidate extracting means
  • the same e-mail candidate extraction unit may extract two e-mails in which the difference between the times received by the e-mail reception unit is within a predetermined range of time from a plurality of e-mails.
  • the identification information adding unit includes the same text detected by the same mail detection unit.
  • the same identification information may be added to the e-mail, and the body deletion unit may delete the body of at least one of the e-mails having the same identification information.
  • the mail database may further include a deletion unit for deleting the received e-mail.
  • the mail database stores at least the e-mail with the body deleted, and the mail management server sends the deleted body to the e-mail when the request receiving unit receives e-mail request information indicating the e-mail with the body deleted. It may further include a text extracting unit for extracting the text from the database, and a text embedding unit for embedding the extracted text in the e-mail.
  • the providing unit may provide the electronic mail with the text embedded.
  • a mail management method for managing e-mails stored in a mail database for storing e-mails, the method comprising: receiving a mail receiving an e-mail; Whether at least one of the sender addresses is a registered address stored in a registered user database that stores the registered user's e-mail address as a registered address in association with the user ID that identifies the registered user An address authentication step of judging whether or not the e-mail is stored in an e-mail database when at least one of an e-mail destination address and a transmission source address is a registered address, and an e-mail is stored in an e-mail database.
  • the password information included in the received electronic mail may be authenticated, and if the authentication is successful, the electronic mail may be stored in the mail database.
  • the registered user database may further store a password in association with the user ID.
  • the system may further include a passcode authentication step for authenticating a password corresponding to the user ID, and when the e-mail request information is received from the user and the user's password is authenticated, the providing step is indicated by the e-mail request information. An email may be provided. In the password authentication step, the password included in the received e-mail may be authenticated.
  • the storing step may store the e-mail with the body deleted.
  • the body deletion step deletes the body contained in either the received e-mail or the e-mail held in the mail database. May be.
  • the same e-mail detection step includes the same e-mail candidate extraction step of extracting e-mail candidates including the same text, and the same e-mail extraction step of detecting e-mails having the same text content from the extracted e-mails. May be.
  • the method may further include a unique information generating step of generating unique body information unique to the body of the received e-mail.
  • An e-mail having the same body-specific information may be extracted from a plurality of e-mails.
  • an e-mail having the same transmission source may be extracted from a plurality of e-mails.
  • an e-mail whose transmission time is the same may be extracted from a plurality of e-mails.
  • an e-mail having the same body size may be extracted from a plurality of e-mails.
  • the same-email candidate extraction step includes: extracting a same-email candidate extracting means for extracting an e-mail having the same body-specific information unique to the body of the e-mail from a plurality of e-mails; A second identical e-mail candidate extraction unit for extracting e-mails having the same sender from the e-mail extracted by the extraction unit, and a transmission time from the e-mail extracted by the second e-mail candidate extraction unit Third electronic mail candidate extracting means for extracting the same electronic mail may be included.
  • two e-mails whose time difference between the times received from a plurality of e-mails is within a predetermined range of time may be extracted.
  • the method may further include an identification information adding step of adding identification information for identifying the text of the received e-mail.
  • the same identification information may be added to e-mails including the same text, and in the text deletion step, at least one of the e-mails having the same identification information is deleted. May be.
  • the method may further include a deleting step of deleting the received e-mail.
  • the mail database may store at least the email with the body removed.
  • the mail management method includes a body extracting step of extracting the deleted body from a mail database when receiving mail request information indicating an e-mail whose body has been deleted, and a body for embedding the extracted body in the e-mail.
  • the method may further include an embedding step.
  • an e-mail with the body embedded may be provided.
  • a recording medium storing a computer program for managing an electronic mail stored in a mail database storing an electronic mail, the mail receiving module receiving the electronic mail, At least one of the destination address and the source address is a registered address stored in a registered user database that stores the registered user's e-mail address as the registered address in accordance with the user ID that identifies the registered user.
  • An address authentication module for determining whether or not there is a mail address, a storage module for storing an e-mail in a mail database when at least one of an e-mail destination and a sender address is a registered address, and a mail database Email required to request email stored in A request receiving module that information received from the user, and JP ⁇ mat to have a provision module to provide Hisage e-mail indicating the mail request information.
  • Figure 1 is a schematic diagram of a mail management system.
  • t Figure 3 is a block diagram showing a hardware configuration of a mail management server 4 0 is a schematic functional Proc view of main one management unit 5 0.
  • FIG. 4 is a diagram showing the data format of the user database 80.
  • FIG. 5 is a diagram showing a data format of the main database 90.
  • FIG. 6 is a functional block diagram of the mail registration unit 400.
  • FIG. 7 is a functional block diagram of the mail providing unit 500.
  • FIG. 8 is a flowchart showing the operation of the mail registration unit 400.
  • FIG. 9 is a flowchart showing the detailed operation of the mail registration unit 400.
  • FIG. 10 is a flowchart showing the detailed operation of the mail registration unit 400.
  • FIG. 11 is a diagram showing a mail request display screen of the user terminal 12.
  • FIG. 12 shows a search result screen for a mail request.
  • FIG. 13 is a flowchart showing the operation of the mail providing unit 500.
  • FIG. 14 is a flowchart showing a detailed operation of the main information providing unit 500.
  • FIG. 15 is a flowchart showing the detailed operation of the mail registration unit 400.
  • FIG. 16 is a flowchart showing the detailed operation of the mail registration unit 400. . Explanation of Signs
  • FIG. 1 shows an overview of the entire mail management system.
  • the mail management system includes an SMTP server 30 that receives mail from the user terminal 12 or the mobile phone 18, a POP server 20 that sends mail to the user terminal 12 or the mobile phone 18, and a mail management server 40.
  • the mail management server 40 manages the mail of the registered user in association with the registered user who has registered the user information in advance.
  • the registered user's mail is the mail sent or received by the registered user.
  • the mail management server 40 receives a registered user's mail from at least one of the POP server 20 and the SMTP server 30 and stores the mail. Further, the mail management server 40 receives a mail request from a registered user and provides the requested mail to the registered user.
  • FIG. 2 is a block diagram showing a hardware configuration of the mail management server 40.
  • the menu management server 40 has a CPU 702, a ROM 704, a RAM 706, a communication interface 708, a hard disk drive 712, a database interface 714, a user database 80, and a menu database 90.
  • the CPU 702 operates based on programs stored in the ROM 704 and the RAM 706.
  • a hard disk drive 712 as an example of a storage device stores setting information and a program for operating the CPU 702.
  • Communication interface 70 8 connects to the Internet 10 to send and receive mail.
  • the database interface 714 connects to the user database 80 and the mail database 90 to receive or transfer mail data.
  • the user database 80 stores mail addresses owned by registered users in association with user IDs for identifying registered users.
  • the mail database 90 stores the mail transmitted and received by the registered user via the Internet 10 in association with the user ID. Also, the mail database 90 stores body-specific information unique to the body of the mail in association with the mail. The text-specific information will be described later in detail.
  • FIG. 3 is a schematic functional block diagram of a mail management unit 50 that manages a mail characteristic of the present embodiment.
  • the mail management unit 500 includes a mail registration unit 400 and a mail providing unit 500.
  • the mail registration section 400 and the mail provision section 500 are realized by the cooperation of the CPU 702 in FIG. 2 and the programs stored or loaded in the ROM 704 and the RAM 706. can do.
  • the CPU 702 has a built-in memory, necessary programs may be stored in the memory, and various functions may be realized as firmware.
  • the mail registration unit 400 stores the mail transmitted and received by the registered user via the Internet 10 in the mail database 90.
  • the mail providing unit 500 extracts a mail requested by the registered user via the Internet 10 from the mail database 90 and provides the mail to the registered user.
  • FIG. 4 shows the data format of the user database 80.
  • the user database 80 stores the password and the mail address owned by the registered user in association with the registered user's user ID.
  • the user database 80 stores a plurality of mail addresses in association with one user ID. Therefore, even if the registered user has a plurality of mail addresses, the mail management server 40 can recognize these addresses as the mail addresses of the same user.
  • FIG. 5 shows the data format of the mail database 90.
  • the mail database 90 is the object ID unique to the mail, the mail title, the body of the mail, the sender address, the destination address, the sending date and time sent by the sender user, and the POP server. 20 stores the reception date and time received, the storage date and time stored by the mail registration unit 400, the size of the mail, the unique information of the body of the mail, and the identification information for identifying the body of the mail in association with the user ID.
  • the object ID may be a serial number in the order in which the mail management server 40 receives the mail.
  • the mail database 90 can identify each mail by the object ID. As described above, the mail database 90 stores the mail in association with the user ID, so that the mail providing unit 500 can easily extract the mail when providing the mail to the registered user. .
  • FIG. 6 is a functional block diagram of the mail registration unit 400.
  • the mail registration section 400 includes a mail receiving section 410, an address authentication section 420, an object ID assigning section 430, a unique information generating section 440, and an identical mail detecting section 450. It has an identification information providing unit 460, a mail deleting unit 470, and a text deleting unit 480.
  • the mail receiving unit 410 receives mail from the SMTP server 30 via the Internet 10 and sends the received mail to the address authentication unit 420.
  • the address authentication unit 420 determines whether at least one of the destination address and the source address of the mail received from the mail receiving unit 410 is a registered address stored in the user database 80. to decide.
  • the address authentication unit 420 determines that at least one of the destination address and the source address of the mail is a registered address
  • the address authentication unit 420 converts the mail received from the mail reception unit 410 into an object ID. Send to the application section 4 3 0.
  • the object ID adding section 430 adds the object ID to the received mail and sends it to the unique information generating section 440.
  • the address authentication unit 420 sends one of the mails to the mail deleting unit 470.
  • the mail deletion section 470 deletes the received mail. As described above, when the same mail is received, one of them is deleted, so that the mail can be efficiently stored in the mail database 90 without wasting memory. '
  • Specific information generating unit 4 4 0 creates a unique body-specific information in the body of the mail received from the object ID assigning unit 4 3 0 is applied to the mail.
  • the body-specific information unique to the body of the email may be, for example, a hash obtained by simplifying the body data using a hash function.
  • Specific information generating unit 4 4 0, given the text-specific information The e-mail is sent to the same menole weather trapping and extracting unit 450.
  • the same mail detection section 450 includes the same mail candidate extraction section 452 and the same mail extraction section 454.
  • the same mail candidate extraction unit 452 extracts mails having the same body unique information as the body unique information attached to the received mail, from the mails stored in the mail database 90.
  • the same mail catching and extracting unit 452 sends the mail received from the unique information generating unit 44 and the mail extracted from the mail database 90 to the same mail extracting unit 454.
  • the same mail extraction unit 454 receives the text of the mail extracted from the mail database 90 by the same mail candidate extraction unit 452, and the same mail candidate extraction unit 452 receives from the unique information generation unit 440 Compare the full text of the email.
  • the same e-mail extraction unit 4 54 determines that the same e-mail sentence extraction unit 4 52 has the same e-mail text as received from the unique information generation unit 4 40 and the e-mail text extracted from the e-mail database 90. If judged, both e-mails are sent to the body deletion section 480.
  • the same mail candidate extraction unit 452 determines that the text of the mail received from the unique information generation unit 440 and the text of the mail extracted from the mail database 90 are not the same, the same mail extraction The section 454 stores both mails in the mail database 90.
  • the body deletion unit 480 deletes the body of the mail received by the mail reception unit 410 out of the received mail, and sends it to the identification information providing unit 460 together with the mail extracted from the mail database 90. .
  • the identification information adding unit 480 adds the object ID of the mail extracted from the mail database 90 to the mail whose body has been deleted by the body deletion unit 480 as identification information for identifying the body of the mail.
  • the identification information adding unit 460 sends the mail with the identification information added to the mail deleting unit 470.
  • the mail deletion unit 470 deletes the mail to which the identification information is added.
  • the mail deletion unit 470 stores the mail with the identification information added to the mail database 90.
  • the mail management server 40 can compress a plurality of mails having the same content into one mail, so that the memory of the user terminal can be saved and the environment of the user terminal can be improved.
  • FIG. 7 is a functional block diagram of the menu providing unit 500.
  • the request receiving unit 5100 receives, via the Internet 10, a provision instruction for providing mail from a registered user, a provision method, a user ID and a password of the registered user.
  • the request receiving section 5110 sends the user ID and password of the registered user to the password authentication section 5200.
  • the request receiving unit 5110 sends a provision instruction to the text extracting unit 5300.
  • the request receiving section 5100 sends a mail providing method to the providing section 5600.
  • the password authentication unit 520 compares the received user ID with the user ID stored in the user database 80, and performs password authentication.
  • the mail extraction unit 5300 extracts a mail from the mail database 90 in accordance with the provision instruction received from the request reception unit 5110.
  • the mail extraction unit 530 determines whether or not the text of the extracted mail has been deleted.
  • the mail extracting unit 550 sends the extracted mail to the body embedding unit 550. As described above, when e-mail is provided, the user who requested the e-mail is authenticated, so that the privacy of the user can be protected.
  • the body extracting unit 540 determines that the body of the extracted mail has been deleted, it sends the identification information given to the extracted mail to the body extracting unit 540.
  • the main text extracting unit 540 extracts the main text corresponding to the received identification information from the mail database 90 and sends it to the main text embedding unit 550.
  • the body embedding section 540 embeds the body of the mail received from the body extracting section 540 in the mail received from the mail extracting section 530 and sends it to the providing section 560.
  • the mail extracting unit 530 sends the mail that has determined that the text has not been deleted to the providing unit 560.
  • the providing unit 560 provides the mail received from the mail extracting unit 530 and the body embedding unit 550 to the registered user by the providing method received from the request receiving unit 510.
  • Mail can be provided by replying to the registered address of the registered user who made the mail request, Includes mail forwarded to an e-mail address other than the registered user who made the request. As another form, it may be stored in a storage device such as a CD-ROM without mail via the Internet 10 and mailed.
  • FIG. 8 is a flowchart showing the operation of the mail registration unit 400 when the mail registration unit 400 registers a mail in the mail database 900.
  • the mail receiving unit 410 receives a mail via the Internet 10 (S100). If at least one of the destination address and the source address of the received mail is a registered address (S101), the object ID assigning section 430 assigns a unique object ID to the mail. (S102). If both the destination address and the source address of the mail are not registered addresses (S101), the operation of the mail registration unit 400 ends.
  • the same mail detection unit 450 compares the text of the received mail with the text of the mail registered in the mail database 90 (S104).
  • the identification information providing unit 460 adds the object ID of the same body mail as the body identification information to the mail from which the body has been deleted (S109).
  • the mail deletion section 470 compares the received mail with the same body mail (S110). If the received mail and the same body mail are the same (S112), the mail deletion section 470 deletes the received mail (S114). When the received mail and the same body mail are not the same, the mail deleting section 4.70 stores the received mail in the mail database 90 (S116). Thus, the operation of the mail registration unit 400 ends. As described above, the mail registration unit 400 deletes the received mail when the same mail and the mail including the same text are present in the mail database 90, so that the mail management server 400 saves memory. be able to.
  • FIG. 9 is a flowchart showing a detailed operation of the mail registration unit 400 in S104 of FIG.
  • the unique information generation unit 440 creates a hash of the body of the received mail (S200).
  • Mail with the same hash as the received mail If it is stored in the source mail 90 (S 202), the same mail candidate extraction unit 452 extracts mail having the same hash as the hash of the received mail from the main database 90. I do.
  • the hash has a smaller capacity than the full text. Therefore, comparing the hashes makes it possible to extract the same mail candidate in a shorter time than when comparing the texts.
  • the same mail extraction unit 454 further checks whether the texts of both mails match in full text. Judge. When the texts of both mails match in full text (S206), the same mail extraction unit 454 determines that the texts of both mails are the same (S208). As described above, by limiting the same mail candidate to the mails received by the mail receiving unit 410 within the predetermined range time, the same mail detecting unit 450 can greatly reduce the processing time.
  • FIG. 10 is a flowchart showing a detailed operation of the mail registration unit 400 in S110 of FIG.
  • the mail deletion section 470 determines whether the sender of the same body mail as the received mail is the same (S300). If it is determined that the source address of the same body mail as the received mail is the same, the mail deletion unit 470 determines whether the destination addresses of both mails are the same.
  • the mail deletion unit 470 determines whether the transmission times of both mails are the same. When it is determined that the transmission time of the same body mail as that of the received mail is the same (S304), the mail deletion unit 470 determines whether the titles of both mails are the same. If it is determined that the title of the received mail is the same as the title of the same body mail (S306), the mail deletion unit 470 determines that both mails are the same (S308).
  • the mail deletion unit 470 determines that the mail is not the same (S3 1 0) o
  • FIG. 11 shows a screen displayed on the display unit 13 of the user terminal 12 when a user makes a mail request.
  • the user inputs necessary items for the mail request based on the standard format displayed on the display unit 13.
  • the user enters the user ID and password in the user authentication fields 1 and 2.
  • the search items 13 4 are entered by the user in the key words, date of transmission, date of reception, from address (source address), to address (destination address), etc., necessary for the search.
  • the search result receiving means 1336 can be selected from reply mail to the mail address to which the user has made the mail request, mail forwarded to a mail address other than the address of the reply mail, and CD-ROM.
  • the user sends the mail created based on the standard format to the mail management server 40 as mail request information. Since the mail request information is created based on the fixed format in this way, the user can easily request the necessary mail from the mail management server 40.
  • FIG. 12 shows an example of a search result for the mail request in FIG. 11 on the display unit 13.
  • the registered user transmits the mail request information
  • the registered user receives the search result from the mail management server 40.
  • One column of e-mail corresponding to the search condition entered by the user in the search item 1 34 is displayed on the search result screen 14.
  • the user can view the details of the e-mail by clicking on the main display area that he wants to view.
  • the operation of the mail providing unit 500 when the user sends a mail request will be described with reference to FIGS. 13 and 14.
  • FIG. 13 is a flowchart showing the operation of the mail providing unit 500.
  • the request receiving section 5100 receives a mail request from the user via the Internet 10 requesting reception of a mail (S400).
  • the password authentication unit 520 receives the user ID and the password entered by the user into the user authentication field 132 from the request receiving unit 5110 (S402). If the password authentication unit 520 determines that the password input by the user is a password corresponding to the user ID (S440), the body extraction unit 530 sends the mail specified by the mail request to the mail database 9 Extract from 0 (S406).
  • the password authentication unit 520 determines that the password input by the user is not the password corresponding to the user ID (S404), the operation of the mail providing unit 500 ends.
  • the providing unit 550 provides the mail extracted from the mail database 90 in S 406 by a providing method instructed by the user (S 408). With the above, the e-mail provider 500 The work ends.
  • FIG. 14 is a flowchart showing a detailed operation of the mail providing unit 500 in S 406 of FIG.
  • the mail extracting unit 530 extracts a request mail that satisfies the search condition indicated by the mail request from the mail database 90 (S500). If the body of the request mail has been deleted (S502), the body extracting unit 540 extracts the body corresponding to the identification information included in the mail from the mail database 90 (S500). 0 4). If the text of the mail extracted in S502 is not deleted (S502), the process jumps to S508.
  • the body embedding section 550 embeds the extracted mail body in the request mail as the body of the request mail (S506). If the mail satisfying the search condition has not been extracted yet, the operation from S500 to S506 is repeated (S508). If the body of the mail extracted in this way is deleted, the body can be embedded in the mail and provided to registered users.
  • the mail database 90 of the first embodiment stores a hash, but the mail database 90 of the present embodiment does not store a hash.
  • the mail registration unit 400 of the present embodiment does not have the unique information generation unit 450.
  • the operation of the mail registration unit 400 of this embodiment will be described with reference to FIG.
  • the other components of the operation of the mail registration unit 400 and the mail providing unit 500 are the same as those of the first embodiment, and the description is omitted.
  • FIG. 15 is a flow chart showing the detailed operation of the mail registration unit 400 in S104 of FIG.
  • the same mail candidate extraction unit 452 determines whether or not a mail including the same source address as the received mail exists in the database 90.
  • the same mail catcher 452 extracts the same mail address having the same sender address as the received mail. -Extract mail candidates from the mail database 90 and determine whether the sending times of both mails are the same. If the transmission time of the received mail and the same candidate mail is determined to be the same (S 6 0 4), the same email candidate extracting unit 4 5 2 determines both email hashes whether same Yes (S606).
  • the same mail extraction unit 454 determines whether the texts of both mails match in the full text (S608). If the full text of the received e-mail matches the same sentence of the same sentiment e-mail, the same e-mail extractor 454 determines that the body of both e-mails is the same (S612).
  • FIG. 16 is a flowchart showing the detailed operation of the mail registration unit 400 in S110 of FIG.
  • the mail deletion section 470 determines whether the destination address of the received mail is the same as that of the same body mail (S700). If it is determined that the destination address of the received mail is the same as that of the same body mail, the mail deletion unit 470 determines whether the titles of both mails are the same (S702). If it is determined that the title of the received mail is the same as the title of the same body mail, the mail deletion unit 470 determines that both mails are the same (S704).
  • the deletion unit 470 determines that the mails are not the same (S706).
  • the mail providing unit 500 can provide the registered user with the body embedded in the mail stored in the mail database 90 after the mail registration unit 400 deletes the body.
  • the same mail detection unit 450 determines that the body of the mail is the same when the source address, the transmission time, the novice, and the whole text match. Instead, the same mail detection unit 450 may determine that the mail is of the same text if the sender address and the transmission time are the same. In this way, if the search by hash is omitted and the sender address and the transmission time are the same, the same text can be detected more quickly by judging that the text is the same.
  • the same mail detection unit 450 may determine that the mail has the same text when the hash and the whole text are the same. Here, it is desirable that the order of judging whether or not the hash, the source address, and the like are the same is performed before the processing with a low hit rate or the processing with a high processing speed. In addition, the same mail detection unit 450 selects the order in which the text can be determined to be the same at the earliest according to the number of registered users, the size of the mail, the size of the hash, and the like. As a result, the processing time of the same mail detection unit 450 can be reduced. -A second modification according to the present embodiment will be described.
  • the mail receiving unit 410 of the present embodiment receives mail from the SMTP server 30 via the Internet 10 and sends the received mail to the address authentication unit 420. Instead, the mail receiving unit 410 receives a mail from the SMTP server 30 via the Internet 10 and reads the password information included in the received mail. Further, mail receiving section 410 determines whether or not the read password information and the information relating to the password information stored in user database 80 correspond to each other. When the read password information and the information regarding the password information stored in the user database 80 correspond to each other, the received mail may be sent to the address authentication unit 420. In this way, by using a mail address and password as the method of identifying a registered user, access from anyone other than the registered user can be more reliably prevented.
  • the password authentication unit 520 of the present embodiment determines whether or not the received user ID is stored in the user database 80 , and if the received user ID is stored in the user database 80 , receives the request. It was determined whether the password received from the part 501 was stored in the user database 80 in association with the received user ID. Alternatively, the user database 80 may further store information about password information in addition to the user ID, password, and mail address. Password authentication unit 5
  • the password authentication unit 520 determines whether or not the received password information corresponds to the information on the password information in the user database 80.
  • the password authentication unit 520 checks whether the user ID received from the request receiving unit 510 is stored in the user database 80 when the received password corresponds to the information on the password in the user database 80. Determine whether or not.
  • the password authentication unit 5200 sends a request from the request reception unit 5110 to the user authentication column 1
  • the pass-word authentication unit 5200 receives the source address of the request mail and the pass-code from the request receiving unit 510. If it is determined that the password input by the user is the password corresponding to the source address, the body extracting unit 530 extracts the mail specified by the mail request from the mail database 90. As described above, by performing user authentication based on the transmission source address and password, the user can save the trouble of inputting the user ID, and can transmit the mail request information more easily.
  • the request receiving unit 5110 of the present embodiment receives the request mail from the registered user, but instead delivers a web page similar to the standard format displayed on the display unit 13 in FIG. You may receive the email request information entered on the web page.

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Abstract

Selon l'invention, le courrier transmis et reçu par les utilisateurs individuels enregistrés auprès d'un serveur de gestion de courrier électronique est associé auxdits utilisateurs enregistrés, de manière que le courrier soit distribué en réponse aux demandes émanant des utilisateurs. Pour empêcher tout accès non autorisé au courrier, le courrier n'est remis qu'après authentification du mot de passe des utilisateurs enregistrés. Si des messages identiques arrivent dans le courrier, le système selon l'invention supprime l'un d'entre eux au moins afin d'assurer un stockage efficace du courrier dans un espace de stockage réduit.
PCT/JP2000/004953 2000-05-24 2000-07-25 Serveur de courrier, systeme et procede de gestion de courrier electronique, et support d'enregistrement WO2001091391A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU60243/00A AU6024300A (en) 2000-05-24 2000-07-25 Mail server, mail management system, mail management method, and recording medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000153739 2000-05-24
JP2000-153739 2000-05-24

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Publication Number Publication Date
WO2001091391A1 true WO2001091391A1 (fr) 2001-11-29

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AU (1) AU6024300A (fr)
WO (1) WO2001091391A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02195749A (ja) * 1989-01-24 1990-08-02 Nec Corp メールシステムの同報メール管理装置
JPH09321791A (ja) * 1996-05-27 1997-12-12 Nippon Telegr & Teleph Corp <Ntt> 電子メール転送方法および装置
JPH10190718A (ja) * 1996-12-24 1998-07-21 Mitsubishi Electric Corp 通信システム
JPH10222438A (ja) * 1997-07-15 1998-08-21 Omron Corp 電子メール管理方法および装置
JPH10294755A (ja) * 1997-04-21 1998-11-04 Mitsubishi Electric Corp 情報端末ネットワークシステム
JPH11225156A (ja) * 1998-02-06 1999-08-17 Mitsubishi Electric Corp 電子メールネットワークシステム
JPH11232188A (ja) * 1998-02-12 1999-08-27 Fujitsu Ltd メッセージ受信装置
JPH11252161A (ja) * 1998-03-04 1999-09-17 Seiko Epson Corp 情報付加装置及び情報付加方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02195749A (ja) * 1989-01-24 1990-08-02 Nec Corp メールシステムの同報メール管理装置
JPH09321791A (ja) * 1996-05-27 1997-12-12 Nippon Telegr & Teleph Corp <Ntt> 電子メール転送方法および装置
JPH10190718A (ja) * 1996-12-24 1998-07-21 Mitsubishi Electric Corp 通信システム
JPH10294755A (ja) * 1997-04-21 1998-11-04 Mitsubishi Electric Corp 情報端末ネットワークシステム
JPH10222438A (ja) * 1997-07-15 1998-08-21 Omron Corp 電子メール管理方法および装置
JPH11225156A (ja) * 1998-02-06 1999-08-17 Mitsubishi Electric Corp 電子メールネットワークシステム
JPH11232188A (ja) * 1998-02-12 1999-08-27 Fujitsu Ltd メッセージ受信装置
JPH11252161A (ja) * 1998-03-04 1999-09-17 Seiko Epson Corp 情報付加装置及び情報付加方法

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