WO2002073421A1 - Dispositif de gestion de courrier electronique, serveur de courrier, procede de transfert de courrier, et support correspondant - Google Patents
Dispositif de gestion de courrier electronique, serveur de courrier, procede de transfert de courrier, et support correspondant Download PDFInfo
- Publication number
- WO2002073421A1 WO2002073421A1 PCT/JP2001/001832 JP0101832W WO02073421A1 WO 2002073421 A1 WO2002073421 A1 WO 2002073421A1 JP 0101832 W JP0101832 W JP 0101832W WO 02073421 A1 WO02073421 A1 WO 02073421A1
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- WO
- WIPO (PCT)
- Prior art keywords
- address
- transfer destination
- destination address
- receiving
- Prior art date
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Classifications
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- 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
- H04L51/48—Message addressing, e.g. address format or anonymous messages, aliases
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- 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
- H04L51/21—Monitoring or handling of messages
- H04L51/23—Reliability checks, e.g. acknowledgments or fault reporting
Definitions
- the present invention relates to an electronic mail transfer technique.
- an e-mail system has been provided with a transfer service for transferring a received e-mail to a predetermined address.
- the user registers the forwarding address for his own receiving address in the mail server.
- the mail server transfers the e-mail to the above-mentioned destination. This allows the user to use both the old and new addresses when changing the email address, or to transfer from an email address used at work to an email address used at home. Was.
- the email forwarding function 'forwarding service was convenient. However, it was difficult to confirm whether the destination address was correct from only the address information. Conventionally, the only way to check the validity of a transfer destination address is to determine, for example, whether it is in a registered list.
- an object of the present invention is to provide a technique for automatically adjusting the validity of a transfer destination address in an electronic mail.
- An object of the present invention is to permit transfer to a transfer destination address whose validity has been confirmed and confirmed, thereby preventing erroneous delivery of a transferred mail.
- Another object of the present invention is to prevent an e-mail from being transferred indefinitely to a transfer destination address that has become valid once.
- the present invention employs the following means in order to solve the above problems.
- the present invention provides an e-mail management device (12) for managing an e-mail transfer destination,
- a receiving unit for receiving a request for setting a destination address for an e-mail reception address
- the electronic mail management device includes: a transmission unit that transmits a test mail to the transfer destination address;
- a receiving unit that receives a response to the test mail
- the confirmation unit may instruct the transmission unit to transmit a test mail, and confirm a response via the reception unit.
- the e-mail management device (1) further includes a communication device that communicates with a transmission device (4) that transmits a test mail to the transfer destination and a reception device (2) that receives a response to the test mail. ,
- the confirmation unit may instruct the transmission device (4) to transmit a test mail via the communication unit, and confirm a response received by the reception device (2) via the communication unit.
- the e-mail management device (12) includes a transfer destination registration unit (5) for registering the transfer destination address when the confirmation is successful;
- the transfer control unit (2) transmits the electronic mail received at the reception address.
- the mail may be forwarded to the forwarding address.
- the e-mail management device (1) registers a transfer destination address for an e-mail reception address, and transfers an e-mail received at the reception address to the transfer destination address.
- the confirmation unit may instruct the mail server (2) to register a transfer destination address for the reception address via the communication unit when the confirmation is successful.
- the confirmation unit may confirm whether the response is transmitted from the reception address.
- the confirmation unit may instruct transmission of each test mail to the reception address and the transfer destination address, and confirm a response to the two test mails.
- the transfer destination registration unit (5) unconditionally registers the request for setting a transfer destination address within a predetermined range, and responds to the request for setting a transfer destination address outside the predetermined range. May register the forwarding address successfully confirmed by the confirmation unit.
- the e-mail management device (1, 2) may further include a notifying unit for notifying that transfer to the transfer destination address cannot be permitted when the confirmation is not successful.
- the confirmation unit confirms the validity of the registered destination address after a predetermined period has elapsed from the registration
- the transfer control unit (2) may stop the transfer to the transfer destination address until the confirmation is successful.
- the communication unit receives a request for confirming a registered transfer destination address from the mail server,
- the confirmation unit may confirm the validity of the transfer destination address.
- the electronic mail management device further includes an information providing unit that discloses a procedure for responding to the test mail to a predetermined range of users,
- the confirmation unit may confirm whether the response follows the response procedure.
- the confirmation unit may confirm whether the response includes a predetermined data string.
- the present invention also cooperates with such a mail server (2) that registers a transfer destination address for an e-mail reception address and transfers an e-mail received at the reception address to the transfer destination address.
- An e-mail management device (1) a receiving unit that receives a request for setting a transfer destination address for an e-mail reception address;
- the electronic mail management device may have a command unit for commanding the validity of the transfer destination address.
- the electronic mail management device further includes a transmission unit that transmits a test mail to the transfer destination,
- the command unit instructs the transmission unit to transmit a test mail to the transfer destination address, and confirms the validity of the transfer destination address by responding to the test mail from the reception address to the mail server. You may.
- the e-mail management device (1) further includes a communication unit that communicates with a transmission device (4) that transmits a test mail to the transfer destination,
- the command unit instructs the transmission device (4) to transmit a test mail to the transfer destination address via the communication unit, and transmits the test mail to the mail server (2) from the reception address for the test mail.
- the validity of the transfer destination address may be confirmed by the response.
- the transmission device (4) may be the mail server (2).
- the command unit may command transmission of each test mail to the reception address and the transfer destination address, and cause the mail server to confirm validity of a response to the two test mails.
- the communication unit receives a request for confirming a registered forwarding destination address from the mail server,
- the command unit may command to confirm the validity of the destination address.
- the e-mail management device (1) includes a response means for the test mail.
- An information disclosure unit that discloses the order to users in a predetermined range may be further provided.
- the receiving unit may receive the setting request by receiving an e-mail of a predetermined format at a predetermined address.
- the present invention is a mail server (2) that cooperates with such an e-mail management device (1) for receiving a request for setting a transfer destination address for an e-mail reception address,
- the transfer destination registration unit (5, 8) may register the confirmed transfer destination address.
- the mail server (2) further includes a receiving unit that receives a response to the test message transmitted to the transfer destination,
- the confirmation unit may confirm the validity of the transfer destination address by the response.
- the confirmation unit may confirm whether the response is transmitted from the reception address.
- the confirmation unit may confirm whether the response includes a predetermined data string.
- the present invention is also a method for managing an e-mail transfer destination
- the step (106, S23-S27) of checking the validity of the transfer destination address may be performed.
- the present invention also provides a method for registering a transfer destination address for an e-mail reception address, transferring an e-mail received at the reception address to the transfer destination address, and cooperating with such a mail server.
- This is a method of managing the forwarding destination, and includes steps (101, S11) for receiving a request for setting a forwarding address for an email receiving address.
- a step (102) of instructing the validity of the transfer destination address It can be something.
- the present invention is a method for managing a transfer destination of an e-mail in cooperation with such an e-mail management device, which receives a request for setting a transfer destination address for an e-mail reception address,
- Steps for checking the validity of the forwarding address (106, S21-23, S25-S27),
- the present invention may be a program for causing a computer to realize any of the above functions.
- a program may be recorded on a computer-readable recording medium.
- the validity of the transfer destination address can be automatically checked in the e-mail transfer function. Then, the present invention allows transfer to the transfer destination address whose validity has been confirmed, and prevents erroneous delivery of the transferred mail. Further, the present invention can prevent an e-mail from being transferred indefinitely to a transfer destination address that has become valid once.
- FIG. 1 is a system configuration diagram of an email management system according to the first embodiment of the present invention
- F I G. 2 is a setting screen used for setting the forwarding of received mail.
- F I G. 3 is a display screen of the transfer setting contents
- FI G. 4 is a display screen showing the procedure for setting the forwarding of received mail to outside the company.
- FI G. 5 is the screen for the test mail sent from web server 1 to the forwarding address [email protected] outside the company. Is an example,
- FI G. 6 is an example of a fixed phrase C sent from web server 1 to receiving mail server 2.
- FIG. 7 is an example of a response mail sent by the user to the receiving mail server 2
- FIG. 8 is an example of the data of the transfer check list 5 of the receiving mail server 2.
- FIG. 9 is a flowchart showing a procedure for setting a transfer destination address.
- FIG. 10 is a flow chart showing the expiration date confirmation processing executed by the receiving mail server 2.
- FIG. 11 is a system configuration diagram of an email management system according to the second embodiment
- FIG.12 is an example of an e-mail sent from the user terminal 3 to the receiving mail server 2 when a transfer setting request is made.
- FIG.13 is an example of transfer permission list 6
- FIG.14 is an example of an e-mail sent to the user terminal 3 when the transfer setting request is approved
- FIG.15 is an example of an e-mail sent to obtain the settings of the current transfer setting file 8
- FIG. 16 is a flow chart of the transfer setting process executed by the receiving mail server 2.
- FIG. 17 is a flowchart showing details of the transfer permission list confirmation processing.
- FIG. 1 is a system configuration diagram of the e-mail management system.
- This e-mail management system consists of a user terminal 3 for sending and receiving mail, a sending mail server 4 for managing mail sending, a receiving mail server 2 for managing mail reception, and a web server for receiving settings related to mail management. Includes 1 and.
- These user terminals 3 and each server constitute an intranet by a local area network (hereinafter referred to as LAN). This intranet is connected to an external mail server on the Internet through an external gateway.
- the user terminal 3 is, for example, a personal computer (abbreviated as a personal computer).
- the user terminal 3 provides the user with functions such as access to a web server, access to the Internet, creation of mail, transmission, reception, and display.
- the outgoing mail server 4 is a so-called server device, and has a CPU, a memory, a hard disk, a LAN board, and the like (not shown).
- the outgoing mail server 4 is connected to the LAN by a LAN board, and manages the transmission of e-mail (the LAN board corresponds to the communication unit).
- the transmitted electronic mail is transferred from the user terminal 3 to the outgoing mail server 4 via the LAN by smtp (Simple Mail Transfer Protocol) and relayed to the mail server of the destination.
- smtp Simple Mail Transfer Protocol
- the outgoing mail server 4 is given a domain name of smtp.ff.co.jP.
- the incoming mail server 2 is also a so-called server device, and includes a CPU (not shown), memory, a hard disk, a LAN board, and the like.
- the incoming mail server 2 is connected to the LAN by a LAN board and manages the reception of e-mails (the LAN board corresponds to the communication unit).
- the received e-mail is read out to the user terminal 3 via pop (Post Office Protocol) via the LAN.
- pop Post Office Protocol
- the receiving mail server 2 is given a domain name of pop.ff.co.jp.
- the receiving mail server 2 provides a mail transfer function for transferring mail arriving at the user to another mail address specified by the user (the CPU of the receiving mail server 2 providing this function corresponds to a transfer control unit). .
- the receiving mail server 2 has a transfer checklist 5 in a file on the hard disk (not shown).
- the transfer checklist 5 is a file that defines a pair of an e-mail reception address and a transfer destination address of the e-mail received at the reception address.
- the receiving mail server 2 receives a reply to the test mail to the transfer destination address from the user terminal 3 (the CPU and the LAN board of the receiving mail server 2 providing this function correspond to a receiving unit). Then, the receiving mail server 2 determines the validity of the reply, and stores the forwarding destination address determined to be valid in the transfer check list 5 (the receiving mail server 2 that provides this function).
- the CPU is equivalent to the confirmation unit).
- the web server 1 is also a so-called server device, and includes a CPU, a memory, a hard disk, and a LAN board (not shown).
- the web server 1 is connected to the LAN by a LAN board (the LAN board corresponds to a communication unit).
- the web server 1 provides various setting screens and messages to the user terminal 3 via http (hypertext transfer protocol) via LAN.
- the web server 1 provides a web page for the user to use the mail transfer function.
- the user displays this web page on the user terminal 3 and inputs or changes the transfer destination address and the like.
- the web server 1 sends a test mail to confirm the validity of the destination mail address set in such a web page (the CPU and the LAN board of the web server 1 that provides this function send the test mail). Part)). Further, the web server 1 provides the user with information indicating a response procedure for responding to such a test mail. This information is described in html (hypertext markup language) and is stored on a hard disk (not shown) (the CPU of the web server 1 that executes this processing and the hard disk correspond to an information providing unit).
- the transfer destination address is set on the web page of the web server 1.
- This web server 1 enables immediate transfer of e-mail to the forwarding address when a forwarding address that allows forwarding unconditionally (for example, an e-mail address in the same department) is applied. . Therefore, such a transfer destination address is notified from the web server 1 to the receiving mail server 2.
- the web server 1 sends a predetermined key to the forwarding address. Send a test email containing the password (hereinafter referred to as keyword 2).
- the receiving mail server 2 recognizes the transfer destination address as valid. Then, the receiving mail server 2 validates the transfer destination address and registers it in the transfer check list 5. Thereby, the receiving mail server 2 permits the transfer to the transfer destination address.
- the predetermined requirement is that the reply is from a predetermined e-mail address (such as an in-house mail address), and the reply is described in the form of a fixed text displayed on a web page. It means that Keyword 1 posted on the web page and Keyword 2 described in the test mail were included in the reply. If the reply does not meet this condition, forwarding to that address is not allowed.
- a predetermined e-mail address such as an in-house mail address
- Incoming mail server 2 sets an expiration date for the valid forwarding address, and automatically sends a test mail again after a certain period of time. If the reply to the test e-mail satisfies the specified requirements, the expiration date is extended.
- the receiving mail server 2 deletes the forwarding destination address from the forwarding checklist 5. As a result, the transfer to the transfer destination address is prohibited.
- Fig. 2 to Fig. 4 show the setting screens that the web server 1 provides to the user terminal 3 via http (the CPU of the web server 1 that provides this function corresponds to the reception unit). These screens are provided from the web server 1 to the user terminal 3 on the intranet.
- Fig. 2 shows the setting screen used for setting the forwarding of received mail to the company or affiliated company.
- This screen displays the mail server specification field 11, the mail address specification field 12, the password specification field 13, the destination address specification field 14, and the transfer specification field 15 to the transfer source. It has a "Set” button and a “Cancel” button.
- the domain name of the receiving mail server 2 is specified.
- This incoming mail server 2 manages the forwarded mail.
- pop.ff.co.jp is specified as the incoming mail server 2.
- the received e-mail address of the user is specified. This is also called a transfer source address.
- the received e-mail address specification column 12 specify a user account (user in FIG.2) excluding @ ff.co.jp which is a domain.
- the password specification column 13 a password for accessing the receiving mail server 2 from the user terminal 3 is specified.
- the transfer destination address specification field 14 is used to specify a transfer destination address to which the e-mail received at the transfer source address is transferred. However, on the setting screen of FIG.2, only the specification of transfer to the company or affiliated company is permitted. When a check mark is placed in the transfer specification field 15 for the transfer source, the transfer source itself is included in the transfer destination address.
- Fig. 3 shows the display screen of the transfer settings. This screen is used to display the settings of the forwarding address. This screen also has a mail server specification field 11, a mail address specification field 12, and a password specification field 13, as in the setting screen of FIG. In addition, this screen has a "display" button and a cancel button.
- the domain name of the mail server that holds the transfer settings is specified.
- the mail address specification column 12 the mail address of the transfer source is specified.
- the password specification field 13 as in the case of FIG. 2, a password is specified when the user terminal 3 accesses the mail server.
- FIG. 4 is a display screen showing a procedure for setting the forwarding of the received mail to outside the company.
- This screen has a description display section 16 and a test mail sending section 17.
- the description display column 16 shows a test mail transmission request procedure for confirming the validity of the transfer destination and a procedure for responding to the test mail.
- the test mail sending column 17 has a mail server designation column 11, an in-house email address designation column 12A, a forwarding address designation column 14A, a "Send” button, and a "Cancel” button. .
- the domain name of the receiving mail server 2 is specified as in the case of FIG.
- the transfer source e-mail address is specified as in the case of the FIG. 2 e-mail address specification column 12.
- the mail address of the transfer destination outside the company is specified in the transfer destination mail address specification field 14A.
- Web server 1 enters the internal e-mail address specified in the internal e-mail address specification field 12 A and the destination e-mail address specification field 14 A in the transfer destination e-mail address specification field 14 A. Send a test mail to the specified forwarding address.
- a fixed phrase C requesting transfer permission is sent from the web server 1 to the mail server specification field 11 to the receiving mail server 2 (the CPU of the web server 1 that executes this processing issues a command. Part)).
- the receiving mail server 2 Upon receiving the fixed phrase C, the receiving mail server 2 adds the above forwarding address to the forwarding destination checklist 5 shown in FIG. However, in this case, the forwarding address is set to the check and wait state, and the received mail is not actually forwarded to that address.
- the user When the user receives this test mail with the above-mentioned in-house e-mail address and transfer destination address, the user sends a response to each test mail according to the procedure of the above-mentioned explanation display column 16.
- the receiving mail server 2 executes the forwarding checklist 5
- the transfer destination address set in the waiting state for confirmation is set to the transfer permission state. As a result, the forwarding address becomes valid, and the received mail is forwarded to the forwarding address.
- FIG.5 shows an example of a test mail sent from web server 1 to [email protected], a forwarding address outside the company.
- This test mail has a title and a body.
- the subject is set to, for example, mail test.
- Keyword 2 consisting of random numbers and the expiration date of the address of the transfer destination are set to 2 0 0 1 0 3 2 0 (March 20, 2001).
- An e-mail with the same content as this test e-mail is also sent to the usual in-house e-mail address (the e-mail address specified in the internal e-mail address specification field 12A of FIG. 4).
- Fig. 6 shows an example of a fixed phrase C sent from the web server 1 to the reception address [email protected] of the receiving mail server 2.
- This e-mail is called transfer permission request mail.
- the transfer permission request mail has a title, sender, and text.
- the subject is set to forward check.
- the sender describes the e-mail address of the user who uses the transfer function.
- the body text for example, the character string "forward check list", the e-mail address of the user who uses the transfer function, the e-mail address of the transfer destination, the keyword 2 composed of random numbers, the expiration date of the transfer destination address, and the reply validity
- the deadline is described.
- the transfer destination address expiration date is the expiration date of the transfer destination address set by the user within a predetermined allowable range.
- the reply expiration date is a reply expiration date set in the web server 1 by a system parameter. If the user replies to the test e-mail after this expiration date, forwarding is not allowed.
- Fig. 7 shows an example of a response mail that the user sends from the e-mail address [email protected] to the response reception address of the receiving mail server 2 [email protected].
- the user sends the test e-mail to a normal internal e-mail address (the e-mail address specified in the internal e-mail address specification field 12A in FIG. 4) and the destination e-mail.
- a normal internal e-mail address the e-mail address specified in the internal e-mail address specification field 12A in FIG. 4
- the response mail to the test mail is sent to the reception address of the receiving mail server 2 [email protected].
- FIG. 7 shows an example of a response sent by a user from a normal internal e-mail address.
- This response mail has the title, body, name, affiliation, forwarding destination, forwarding reason, keyword 1, keyword 2, and expiration date.
- the configuration of such a response mail is specified in the procedure screen (FIG. 4) for setting the transfer to outside the company provided by the web server 1.
- the subject is set to [email protected].
- the name and affiliation are the name and affiliation of the user who registered the transfer destination address.
- the forwarding destination is an external forwarding e-mail address to which the received mail is forwarded.
- Keyword 1 was specified on the screen (FIG. 4) for setting the transfer to outside the company provided by Web server 1.
- Keyword 2 is specified in the body of the test mail sent from Web server 1 to the forwarding address.
- the forwarding address expiration date is the expiration date for which the transfer of the e-mail is permitted.
- FIG. 8 shows a data example of the transfer checklist 5 of the received mail server 2.
- This transfer checklist 5 is set for each user who receives the service of the receiving mail server 2.
- the user name is specified on the first line.
- the transfer destination specification is listed on the second line and below.
- Each destination line contains the destination address, status, keyword 2, and expiration date.
- a comment after the "#" character on each line is a comment.
- the status defines the use status of each transfer destination address.
- the status is OK, it indicates that the email forwarding service to the forwarding address is being performed.
- the status When the status is WT, it indicates that the receiving mail server 2 has received the transfer permission request mail from the web server 1 and that the transfer destination address is being checked by the test mail. Or, if the status is WT, the expiration date of the forwarding address has passed, and the forwarding address may be being confirmed by a test mail. You.
- NG it indicates that the transfer destination address cannot be used. This is the transfer destination address specified by the user to stop using the user interface (not shown). As described above, the user can select and use a desired destination address from the plurality of transfer destination addresses registered in the transfer checklist 5, and stop the others.
- the transfer destination address [email protected] is specified, and the state is OK. Therefore, the e-mail currently sent to the user is forwarded to [email protected].
- the expiration date of this forwarding address is set on February 28, 2001.
- the transfer destination address yyy @ ppp. Com is specified, states c therefore NG, currently, received e-mail is a is transferred to the transfer destination address.
- the transfer destination address [email protected] is specified, and the status is WT, that is, waiting for confirmation. Therefore, when a response mail to the test mail for this transfer destination address is normally received, this transfer destination address is used.
- Fig. 9 shows the procedure for setting the forwarding address in this e-mail management system. Now, according to the user operation, the web page of the web server 1 is displayed on the user terminal 3.
- the user terminal 3 receives the user's name, e-mail address, transfer destination address, and the like on this web page. This input is sent to web server 1 via LAN (arrow 101).
- the web server 1 If the forwarding address is within the permitted range, the web server 1 immediately sends the receiving mail server 2 a configuration file describing the forwarding address.
- the setting file is a file in which the name of the user who requested the transfer setting, the transfer destination address, and the transfer destination address expiration date are described.
- the web server 1 sends a test mail A specifying the keyword 2 to the forwarding address.
- web servers No. 1 sends test mail B with keyword 2 specified to the normal received mail address (forwarding mail address).
- the web server 1 embeds the transfer destination information of the user in the form of the fixed phrase C and transfers it to the receiving mail server 2 (arrow 102).
- This fixed phrase C includes the user's usual email address, forwarding address, keyword 2, forwarding address expiration date, and reply expiration date.
- Incoming mail server 2 saves the user's forwarding destination information in temporary file 7.
- test mail A transmitted above is received by the user terminal 3 from the transfer destination mail address (arrow 103).
- test mail B is received by the user terminal 3 from the normal received mail address (arrow 104).
- the terminals that receive test mails A and B need not be the same terminal.
- the user terminal 3 displays a web page reply procedure and a reply example sentence D (arrow 105), and the user refers to the reply procedure and the reply example sentence D.
- Keyword 1 is specified in this reply procedure (see FIG. 4).
- the user creates a reply mail X to the test mail A by adding the name, affiliation, keyword 1, etc. to the contents of the received test mail A with reference to the reply example sentence D.
- the user creates a reply mail Y to the test mail B by adding the name, affiliation, keyword 1, etc. to the contents of the received test mail B with reference to the reply example sentence D.
- the user sends the reply mail X and the reply mail Y to the receiving mail server 2 with the title specified in the fixed phrase from the normal mail address (forwarding source address) and the forwarding destination address (arrow 106).
- the receiving mail server 2 checks whether the reply mails X and Y have been received before the reply expiration date. Then, if the reply mails X and Y are received before the reply expiration date, the receiving mail server 2 checks whether the reply mails X and Y include the keyword 1 or not.
- the keyword 1 is information set as a constant in the web server 1 and the receiving mail server 2.
- the receiving mail server 2 follows the procedure for setting the transfer of the reply mail to outside the company (FIG. 4). You can confirm that. Therefore, next, the receiving mail server 2 checks the reply mails X and Y against the fixed phrase C.
- the receiving mail server 2 If both the reply mails X (including keyword 2) and Y (including keyword 2) match the contents of the fixed phrase C (including keyword 2), the receiving mail server 2 enters the transfer check list 5 The transfer destination address is added in an OK state. At the same time, the receiving mail server 2 sets the expiration date of the transfer destination address in the transfer destination check list 5. Then, the receiving mail server 2 deletes the fixed phrase stored in the temporary file 7.
- reply mail X or Y does not include the keyword 1 in the above, it is determined that these reply mails are not valid replies according to the procedure for setting forwarding to outside the company (FIG. 4). .
- reply mails X or Y include the keyword 1
- reply mails X or Y do not match the content of the fixed phrase C (for example, if the keyword 2 is not included)
- the receiving mail server 2 determines that the reply mail is not a valid reply mail.
- the receiving mail server 2 does not set the transfer destination address in the transfer destination check list 5. Then, the receiving mail server 2 deletes the fixed phrase stored in the temporary file 7.
- FIG.10 shows the expiration date confirmation process executed by the receiving mail server 2. This process is periodically started in the receiving mail server 2, and executes the time limit management of the transfer destination address.
- the receiving mail server 2 reads the next transfer destination designation line whose status is designated as OK from the transfer checklist 5 (S 1). Then, the received mail server 2 determines whether the transfer expiration date included in the transfer destination designation line is a predetermined day before the expiration date (S2).
- the receiving mail server 2 sends a test mail to the transfer destination (S3). Thereafter, the receiving mail server 2 advances the control to the determination of S6. The response to the test mail is processed in the same procedure as the procedure described in FIG. On the other hand, if it is determined in S2 that the expiration date is not a predetermined time before 0, the receiving mail server 2 determines whether or not the transfer expiration date has passed since the current date.
- the receiving mail server 2 stops the transfer service for the transfer destination address (S5). Thereafter, the receiving mail server 2 advances the control to the determination of S6. If the time has not expired in the judgment of S4, the receiving mail server 2 skips the transfer destination designation line and advances the control to the judgment of S6.
- the receiving mail server 2 determines whether or not the next transfer destination designation line is included in the transfer check list 5 (S6). If there is a next transfer destination specification line, the receiving mail server 2 returns the control to S1. On the other hand, if there is no next transfer destination specification line, the receiving mail server 2 ends the processing.
- the validity of the transfer destination address is confirmed in the e-mail transfer function in the receiving mail server 2.
- the test mail is sent to the forwarding address, and if a valid reply mail is returned to the receiving mail server 2 for the test mail, the forwarding address becomes valid. Therefore, setting of an incorrect transfer destination can be prevented by the processing of the receiving mail server 2.
- the received mail server 2 confirms not only the response from the transfer destination address to the test mail but also the response to the test mail from the normally used mail address as a validity condition. Therefore, it is possible to respond to the test mail using an e-mail address managed in advance. Therefore, an unauthorized response to the test mail can be prevented.
- the web server 1 of the above-described embodiment immediately transmits the received mail server to the web server 1 even if the transfer destination address for which the transfer setting is requested on the web page is within a predetermined range, for example, within a company or an address of an affiliated company. Register to 2. On the other hand, a test mail is sent to the forwarding address outside the company. For this reason, the forwarding address in the company can be registered quickly. On the other hand, it is possible to strictly confirm the destination of e-mails outside the company.
- the receiving mail server 2 has a transfer destination address expiration date in each transfer destination specification line of the transfer check list 5. Therefore, it is possible to prevent the e-mail from being transferred to the transfer destination address indefinitely. In addition, the validity or invalidity of the transfer can be set freely within such a time limit.
- a procedure for responding to the test mail is provided from the web server 1 on the intranet. Therefore, it is possible to prevent an external third party from responding to the test mail due to impersonation.
- test mail A is transmitted to the transfer destination address
- test mail B is transmitted to the normally used transfer source mail address.
- implementation of the present invention is not limited to such a configuration or procedure.
- the test mail A may be sent to the forwarding address, and the test mail B may not be sent to the usual forwarding address. That is, the validity of the transfer destination address may be confirmed only by the test mail addressed to the transfer destination address.
- a web page for receiving a transfer destination address application is provided.
- the web server 1 sends a test mail to the transfer destination address 2.
- Web server 1 sent fixed-form sentence C requesting reception mail server 2 to permit transfer.
- implementation of the present invention is not limited to such a configuration or procedure.
- the web server 1 may request another communication device to transmit a test mail. Further, the web server 1 may send the fixed form C requesting the transfer permission to the receiving mail server 2 and request the receiving mail server 2 to send a test mail (in this case, the receiving mail server 2 Device)).
- the communication between the web server 1 and the receiving mail server 2 may be performed by e-mail, or may be performed by another file transfer function such as ftp (file transfer protocol), a file by nfs (network file system) or the like.
- a sharing function may be used.
- the receiving mail server 2 and the transmitting mail server 4 may operate on the same host. Further, the web server 1 and the receiving mail server 2 may operate on the same host. In this case, the receiving mail server 2 receives the transfer setting request, sends the test mail, checks the response to the test mail, and responds. The registration of the transfer destination address after confirmation may be executed.
- the reception of the transfer setting request, the transmission of the test mail, the confirmation of the response to the test mail, the registration of the transfer destination address after the confirmation of the response, and the like may be shared by different server devices.
- the communication between the servers is performed by the above-mentioned e-mail, ftp, nfs, or DCOM provided as a function of windows, which is an operating system of Microsoft Corporation, a remote processing system that is famous for unix systems, for example. (Distributed Component Object Model) may be used.
- the keyword 1 is fixedly set as a constant value in the web server 1 and the receiving mail server 2.
- the keyword 1 may be passed from the web server 1 to the receiving mail server 2.
- the keyword 1 may be included in the fixed phrase C (FIG. 6) sent from the web server 1 to the receiving mail server 2.
- FIGS. 11 to 17 A second embodiment of the present invention will be described with reference to FIGS. 11 to 17.
- an example of an e-mail management system in which a web page for setting a transfer destination address is provided in a web server 1 and a user sets a transfer destination address based on the information of the web page showed that. .
- FIG. 11 shows a system configuration diagram of the e-mail management system according to the present embodiment.
- This system has a user terminal 3 used by a user and a receiving mail server 2.
- the user terminal 3 and the receiving mail server 2 are connected by LAN.
- the system is connected to the Internet via an external gateway.
- the received mail server 2 has a transfer permission list 6, a temporary file 7, and a transfer setting file 8.
- the transfer permission list 6 at least one transfer destination address to which the transfer of the electronic mail is permitted in the received mail server 2 is registered.
- a transfer destination address for transferring the received e-mail is registered.
- the user can register the transfer destination in the transfer setting file 8 by sending an e-mail requesting the transfer setting to the reception address ([email protected]) of the receiving mail server 2.
- the contents of the e-mail requesting the transfer setting from such a user are temporarily stored in the temporary file 7.
- the transfer destination for which the user has requested the transfer setting is permitted in the transfer permission list 6, the transfer destination is moved from the temporary file 7 to the transfer setting file 8.
- the receiving mail server 2 sends the test mail to the forwarding destination in the same procedure as the web server 1 of the first embodiment. Send.
- the transfer destination address is added to the transfer permission list 6, and further registered in the transfer setting file 8. You. The request for the transfer setting is held in the temporary file 7 until the response to the test mail is confirmed.
- FIG.12 is an example of an e-mail sent from the user terminal 3 to the receiving mail server 2 when a transfer setting request is made.
- a user who wishes to forward the received e-mail sends the e-mail shown in FIG. 12 to the reception address ([email protected] in FIG. 12) of the reception mail server 2.
- the title "forward-set” indicates that this e-mail is a forward setting request.
- "Set forwar d list" described in the first line of the text indicates that the destination addresses are listed below that line.
- the embodiment of the present invention is not limited to such a title or the description itself.
- [email protected] and the like are forwarding destination addresses.
- the last line ⁇ user in FIG. 12 specifies that the source address itself is registered as the destination.
- Fig. 13 shows an example of transfer permission list 6.
- Transfer permission list 6 is created for each user.
- the first line of the transfer permission list 6 describes the user name of the recipient of the e-mail to be transferred.
- the permitted transfer destination address and the expiration date of the permission are listed.
- *@ff.co.jp is a specification that allows all internal transfers. That is, transfer to the domain name ff.co.jp to all addresses is permitted.
- FIG.13 sets an indefinite period for addresses for internal use.
- FIG. 14 shows an example of an e-mail sent from the receiving mail server 2 to the user terminal 3 when the transfer setting request is approved and the transfer destination address is registered in the transfer setting file 8.
- the received mail server 2 may notify the user terminal 3 to that effect.
- the CPU of the receiving mail server 2 that executes such processing corresponds to the notification unit.
- the subject "forward-changed" indicates that the forwarding setting request has been approved and the forwarding destination has been changed.
- This text includes the registration completion date and time of the transfer destination, a message indicating that the transfer destination has been changed, and the contents of the transfer setting file 8 of the user after the change.
- Fig. 15 shows an example of an e-mail sent by the user to obtain the current settings of the transfer setting file 8.
- the receiving mail server 2 returns the setting of the transfer setting file 8 for the user.
- the subject is "forward-get", indicating that it is a request to return the settings in the forwarding setting file 8.
- the "get-forward-list” in the message indicates that this e-mail is a reply request for the setting contents of the forwarding setting file 8. Is shown.
- the target user is specified after the "get-forward-list" line.
- FIG. 16 shows a flowchart of the transfer setting process executed by the receiving mail server 2. This process is activated when an e-mail addressed to the reception address of the receiving mail server 2 ([email protected] in FIG. 11) is received. In this process, the receiving mail server 2 first reads the transfer setting request e-mail (SI1).
- SI1 transfer setting request e-mail
- the receiving mail server 2 executes a transfer permission list confirmation process (S13).
- Fig. 17 shows the details of the transfer permission list confirmation process.
- the receiving mail server 2 first reads the next transfer destination from the temporary file 7 (S21).
- the receiving mail server 2 checks the transfer permission list 6 (S22). Then, it is determined whether or not the transfer destination address is included in the transfer permission list 6 (S23).
- the receiving mail server 2 moves the transfer destination from the temporary file 7 to the transfer setting file 8 (S24). After that, the receiving mail server 2 advances the control to the process of S26.
- the receiving mail server 2 sends a test mail to the transfer destination (S25).
- the transfer destination is registered in the transfer permission list 6 and further set in the transfer setting file 8.
- the procedure for confirming the response to the test mail is the same as that in the first embodiment, and a description thereof will be omitted.
- the receiving mail server 2 determines whether or not the temporary file 7 has the next transfer destination (S26). If the next transfer destination remains in the temporary file 7, the receiving mail server 2 returns the control to S21. On the other hand, if the next transfer destination does not remain in the temporary file 7, the receiving mail server 2 sends a change notification mail to the user (S27). After that, the CPU 2 ends the processing.
- transfer settings can be managed only by sending and receiving e-mails without using the Web server 1.
- Web server 1 ⁇ Computer readable recording medium
- the program executed in web server 1 or received mail server 2 in the above embodiment can be recorded on a computer-readable recording medium. Then, by causing a computer to read and execute the program on the recording medium, the computer can function as the web server 1 or the received mail server 2 described in the above embodiment.
- the computer-readable recording medium is a recording medium in which information such as data and programs is stored by electrical, magnetic, optical, mechanical, or chemical action and can be read from the computer.
- Examples of such a recording medium that can be removed from a computer include a floppy disk, a magneto-optical disk, a CD-R0M, a CD-R / W, a DVD, a DAT, an 8 mm tape, a memory card, and the like.
- a recording medium fixed to the computer includes a hard disk and a ROM (read only memory).
- the program can be stored in a hard disk or a memory of a computer, and can be distributed to another computer through a communication medium.
- the program is transmitted over a communication medium as a data communication signal embodied by a carrier wave.
- the computer receiving the distribution is referred to as the
- It can function as 1 or receiving mail server 2.
- the communication medium is a wired communication medium such as a metal cable including a coaxial cable and a twisted pair cable, an optical communication cable, or a wireless communication medium such as a satellite communication, a terrestrial wireless communication, and a wireless communication medium. Any of LAN, Bluetooth, etc. may be used.
- the carrier is an electromagnetic wave or light for modulating a data communication signal.
- the carrier may be a DC signal.
- the data communication signal has a baseband waveform without a carrier. Therefore, the data communication signal embodied in a carrier may be either a modulated broadband signal or an unmodulated baseband signal (corresponding to a case where a DC signal of voltage 0 is used as the carrier).
- the present invention can be used in industries related to the manufacture and sale of information devices, the development of programs related to information devices, system integration including information devices, and the provision of services using information devices.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Information Transfer Between Computers (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2001/001832 WO2002073421A1 (fr) | 2001-03-08 | 2001-03-08 | Dispositif de gestion de courrier electronique, serveur de courrier, procede de transfert de courrier, et support correspondant |
EP01912205A EP1380957B1 (en) | 2001-03-08 | 2001-03-08 | Method and devices for transferring electronic mail |
JP2002572013A JP4405728B2 (ja) | 2001-03-08 | 2001-03-08 | 電子メール管理装置、メールサーバ、転送方法、および媒体 |
DE60138737T DE60138737D1 (de) | 2001-03-08 | 2001-03-08 | Verfahren und Vorrichtungen zur Übergabe elektronischer Post |
US10/656,194 US7962554B2 (en) | 2001-03-08 | 2003-09-08 | E-mail management system, mail server, forwarding method and medium |
US13/094,054 US8108479B2 (en) | 2001-03-08 | 2011-04-26 | E-mail management system, mail server, forwarding method and medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2001/001832 WO2002073421A1 (fr) | 2001-03-08 | 2001-03-08 | Dispositif de gestion de courrier electronique, serveur de courrier, procede de transfert de courrier, et support correspondant |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/656,194 Continuation US7962554B2 (en) | 2001-03-08 | 2003-09-08 | E-mail management system, mail server, forwarding method and medium |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002073421A1 true WO2002073421A1 (fr) | 2002-09-19 |
Family
ID=11737109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/001832 WO2002073421A1 (fr) | 2001-03-08 | 2001-03-08 | Dispositif de gestion de courrier electronique, serveur de courrier, procede de transfert de courrier, et support correspondant |
Country Status (5)
Country | Link |
---|---|
US (2) | US7962554B2 (ja) |
EP (1) | EP1380957B1 (ja) |
JP (1) | JP4405728B2 (ja) |
DE (1) | DE60138737D1 (ja) |
WO (1) | WO2002073421A1 (ja) |
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GB2387740A (en) * | 2002-04-19 | 2003-10-22 | Hewlett Packard Co | Electronic mail address validation |
JP2010211492A (ja) * | 2009-03-10 | 2010-09-24 | Fujitsu Social Science Laboratory Ltd | メール誤送信防止装置,方法,およびプログラム |
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US20040044583A1 (en) * | 2002-08-30 | 2004-03-04 | Thibault Thomas Michael | Email reminder apparatus and method |
US20040093428A1 (en) * | 2002-11-07 | 2004-05-13 | International Business Machines Corporation | Network routing system |
JP4574161B2 (ja) | 2003-11-17 | 2010-11-04 | キヤノン株式会社 | 通信装置、その制御方法およびプログラム |
JP2007241807A (ja) * | 2006-03-10 | 2007-09-20 | Fujitsu Ltd | 電子メール送信プログラム、電子メール送信装置、電子メール送信方法 |
US20080168142A1 (en) * | 2007-01-08 | 2008-07-10 | International Business Machines Corporation | Method for intelligent verification of electronic mail message addresses |
JP4830010B2 (ja) * | 2009-08-10 | 2011-12-07 | 富士通株式会社 | 電子メール管理装置、メールサーバ、転送方法、および媒体 |
KR101767122B1 (ko) * | 2015-09-11 | 2017-08-10 | 이니그마(주) | 인터넷 메시지 전송 기반의 알림 서비스 처리 장치 및 그 동작 방법 |
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Also Published As
Publication number | Publication date |
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US20110202619A1 (en) | 2011-08-18 |
EP1380957B1 (en) | 2009-05-13 |
JPWO2002073421A1 (ja) | 2004-07-02 |
DE60138737D1 (de) | 2009-06-25 |
US20040049548A1 (en) | 2004-03-11 |
US8108479B2 (en) | 2012-01-31 |
JP4405728B2 (ja) | 2010-01-27 |
US7962554B2 (en) | 2011-06-14 |
EP1380957A1 (en) | 2004-01-14 |
EP1380957A4 (en) | 2006-07-19 |
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