JPH02202144A - Electronic mail transfer system - Google Patents

Abstract

PURPOSE:To detect the falsification of a transfer mail, etc., due to a malicious intent at the time of preparing the mail by an outgoing origin by automatically sending the transfer mail to the outgoing origin of an electronic mail that is an origin to prepare the transfer mail. CONSTITUTION:A processing part 4 performs the transfer operation of the electronic mail first for the transfer request of the electronic mail from a second user. The transfer mail is stored in the individual mail box 5 of a third user that is a transfer destination at that time, and also, the arrival of the transfer mail is informed from the processing part 4 to the third user. Next, the processing part 4, after storing the electronic mail that is the origin to prepare the transfer mail into the individual mail box 5 of a first user issuing the mail to the second user, informs the arrival of the transfer mail to the first user that is the outgoing origin of the electronic mail. In such a way, it is possible to detect the falsification due to the malicious intent at the time of preparing a distribution mail, etc., by the outgoing origin.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an e-mail system for sending and receiving e-mails between a plurality of users. This is related to the child mail forwarding method.

[Conventional technology]

There are two e-mail transfer methods in conventional e-mail systems, such as UNIX User's 1.
teijerenee Manual (Compute
er Systems Re5earenGroup
, computer 5science Divislo
n Department-mant of FHloctr
lcal Kngineer4ng and Comp
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of C311forni6) There is a forw command function among the 11 MH functions shown.

Here, the conventional child mail transfer method will be explained with reference to FIGS. 2 to 4.

FIG. 2 is a block diagram of a conventional e-mail system, in which (1) is an e-mail device that processes e-mails, (2) is a terminal device for using e-mail services, and (3) is a terminal device for using e-mail services. is an e-mail device (1) and a terminal device (2)
) is a communication line that connects

FIG. 3 is a configuration block diagram showing the internal logical configuration of a conventional e-mail system f (11), in which (4) shows the terminal device (2) connected to the e-mail system & (11), e-mail and commands. A processing unit (5) is a personal mailbox that stores e-mails addressed to individuals.

! ! FIG. 4 is a flowchart showing the operation of the processing unit (41) related to e-mail transfer. If the e-mail has arrived at the mailbox (5), the second user adds a comment to the e-mail and then forwards it to the third user. Explain using.

The second user specifies the e-mail that has already been received from the first user and is stored in the second personal mailbox (5), and sends an instruction to transfer the e-mail to the terminal & (
21 and notifies the processing unit (4).

In step (6) of FIG. 4, the processing unit (4) receives the transfer instruction.

In step [F], the processing unit (4) retrieves the e-mail specified by the second user from the personal mailbox (5), and retrieves the e-mail specified by the second user from the terminal device (2) used by the second user. ).

Next, the second user uses the terminal device (2) t- to add a comment to the e-mail sent from the processing unit (4), thereby making it possible for the user of $3 to Create an e-mail to be forwarded (hereinafter referred to as forwarding mail). In step (8) of FIG. 4, the processing unit (4)
indicates that the second user has completed the creation of the forwarded mail.

#After creating the forwarded email, the second user transfers the forwarded email to the forwarding destination (in this case, the third user) on the terminal device (
2) sends it to the processing unit (4). Steps in Figure 4 (
At 91, the processing unit (41) receives the forwarding destination and the forwarding mail.

Step (1) In step (1), the processing unit (4) stores the forwarded mail in the personal mailbox (5), and in step a notifies the third user of the arrival of the mail.

Through the above operations, the e-mail transfer by the second user is completed.

[Problem that the invention seeks to solve]

The conventional e-mail forwarding method operates as described above, so that the sender of the e-mail (the user of 11E1 above), the second user consciously forwards the e-mail to the sender. Unless the e-mail is sent, there is no way of knowing how the second user changed the e-mail to make it a forwarded e-mail, or to which user the e-mail is to be forwarded.

For example, even if the e-mail is maliciously tampered with by the second user, the first user may not be able to detect it at all.

This invention was made to solve the above-mentioned problems when e-mail is forwarded.

The purpose of the present invention is to obtain an e-mail forwarding method that allows the sender to ascertain the contents and destination of the forwarded mail by automatically sending the forwarded mail back to the sender of the e-mail. .

[Means to solve all problems]

In the e-mail forwarding method according to the present invention, when a second user forwards an e-mail received from a first user to a third user, the first user who is the sender of the e-mail It is a good idea to have a means to automatically send the forwarded mail to the user.

[Effect]

In this invention. The means for automatically sending the forwarded mail to the sender allows the sender to monitor the contents of the forwarded mail and the forwarding destination.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. 1st
The figure is a flowchart showing one embodiment of the present invention,
It shows the operation of the processing section (4) in FIG. 3. In addition,
In Figure 1! ! The same reference numerals as in FIG. 4 indicate the same or corresponding parts.

In response to the email forwarding request from the second user,
The processing unit (4) first performs step (6) in FIG.
From step αυ, a child mail transfer operation similar to that of the prior art described above is performed. At this point, the third user's personal mailbox, which is the forwarding destination! 51#c transfer mail is stored, and the processing unit (4) notifies the fourth user of the arrival of the transfer mail.

Next, the processing unit (4) transmits the forwarded mail at step z in FIG. stored in the person's personal mailbox (5). Thereafter, the processing unit (4) sends the e-mail to the user of ml who is the sender of the e-mail. Notify the arrival of the forwarded mail.

〔Effect of the invention〕

As described above, according to the present invention, the e-mail forwarding method yk is configured to automatically send the forwarded mail to the sender of the e-mail from which all the forwarded mail was created. This has the effect that the sender can grasp the contents of the forwarded mail and the forwarding destination, and the sender can detect malicious tampering when creating the forwarded mail.

[Brief explanation of the drawing]

FIG. 1 is a 70-chart showing an embodiment of the present invention.
FIG. E2 is a general schematic diagram of the e-mail system, FIG. 3 is a logical diagram of the e-mail device, and FIG. 4 is a flowchart showing a conventional embodiment. In the figure, (1) is an e-mail device, (2) is a terminal device, C3) is a notification @ line, (4) is a processing unit, and (5) is a personal mailbox. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] A plurality of terminal devices, a processing section connected to the plurality of terminal devices via a communication line and configured to collect and deliver e-mails sent from the plurality of terminal devices by a plurality of users, and the processing section. In an e-mail system equipped with a personal mailbox for storing e-mails addressed to individuals processed by the first user, the e-mails sent by the first user to the second user and already stored in the personal mailbox are In the e-mail forwarding method in which the second user creates a forwarded e-mail with some modifications made to the e-mail, and then sends the forwarded e-mail to a third user, the processing unit An e-mail forwarding method characterized in that the forwarded e-mail addressed to user No. 3 is automatically sent to the first user who is the sender of the e-mail.