JP2002157194A - E-mail receiving system and method and storage medium storing e-mail receiving program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an arrangement enabling a mail received from a certain terminal to be received again by another terminal, while also allowing reception of only new mails. SOLUTION: A user determines whether or not all of mails in a mail server 200 including already received mails should be received and whether or not mails currently in the mail server 200 should be left behind in the mail server 200 even after reception. This selection is made by setting a mailer's request for reception when reception is requested. The mail server 200, on receiving the request for reception, uses a reception request analysis means 211 to analyze the contents of the request for reception and determines whether or not all of the mails including the already transmitted mails should be transmitted. Then a transmission mail extracting means 212 is used to extract the mails to be transmitted to the user and these mails are left behind in a temporary storage part 222 used for transmission. Further, a transmission type determining means 212 is used to determine whether or not the already transmitted rails should be left behind in the mail server; they may be erased from the mail server as usual or may be left behind in the mail server for re-transmission.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to reception of e-mail, and more particularly, to reception of e-mail, in the case where one or more terminals are owned, mail once received from one terminal is re-read from another terminal. The present invention relates to a system and the like that can receive and can receive only new mail (unreceived mail).

[0002]

2. Description of the Related Art A conventional electronic mail receiving system includes P
OP (Post Office Protocol) and IMAP (Internet Message Acc)
essProtocol), which has the following characteristics.

[0003] In POP, a mail client makes a mail reception request, moves the contents of the mail from the mail server to a local disk of the mail client (terminal), and the mail once taken into the terminal does not remain in the mail server. is there. E-mail client software generally available in the Windows environment uses this POP
Most of them are received by using.

On the other hand, in IMAP, a mail client accesses a mail server, does not take in the mail itself to its own terminal, reads and writes the mail on the mail server, and after reading, manages the mail as it is. It is a method, and it is necessary to periodically delete the read mail on the mail server at a certain timing.

[0005]

When there are a plurality of mail receiving terminals (terminals) in the POP, when a POP receives a mail from each terminal, the received mail is separately stored in the plurality of terminals. In other words, once received, the mail cannot be viewed from another terminal. For example, there is an inconvenience (problem) for a user who wants to receive and check an e-mail on a portable laptop computer while away from home, but wants to manage all received e-mails on a fixed personal computer at home.

[0006] In IMAP, unless the mail is deleted,
If you access the mail server, you can read and write mail as many times as you want from multiple client environments,
This is still inconvenient (problem) for a user who wants to manage mail on his / her personal computer (terminal) because it cannot be downloaded to the terminal.

In order to solve the above problems, the present invention provides an electronic mail receiving system, an electronic mail receiving method, and an electronic mail receiving method, based on a conventional POP system, with a mail receiving control function based on additional information set by a user. Provided is a recording medium on which a mail receiving program is recorded.

[0008]

The invention according to claim 1 of the present invention is an electronic mail receiving system for receiving a mail in a mail server at a terminal on the receiving side, wherein the terminal has already received the mail. A request to the mail server to receive all the mails in the mail server including the received mails, or to receive only new mails that have not been received. Request to leave or not to leave in the mail server,
Means for requesting mail reception to the mail server;
Mail receiving means for receiving mail transmitted from the mail server as a receiving port on the terminal side, wherein the mail server accumulates mails received from other mail servers in the order in which they are received; Storage means for copying and temporarily storing a mail to be transmitted to the terminal that has performed, and a control code for receiving the received mail including the received mail set by the terminal or receiving only a new mail Is analyzed and output as determination information, and according to the determination information, a mail to be transmitted to the user is extracted as a transmission mail from the mails in the storage unit, and the transmission mail is left in the mail server, Processing means for judging whether or not to leave the message, transmitting the message to the terminal, and setting a received flag on the remaining sent mail.

According to a second aspect of the present invention, there is provided an electronic mail receiving system for receiving a mail stored in a mail server at a terminal on a receiving side, wherein the terminal has already received a received mail. Received mail request means for making a request to the mail server to receive all mails in the mail server including the above, or to receive only new mails not already received, and Copy reception request means for making a request to the mail server to leave or not to leave the mail server,
Mail receiving means for receiving mail transmitted from the mail server as a receiving port on the terminal side, wherein the mail server stores mail received from another mail server in the order received; A transmission temporary storage unit for temporarily storing a mail to be transmitted to the terminal by copying the mail from the mail storage unit, and a reception unit for analyzing and outputting a control code requested to be received by the received mail request unit. Request analysis means, according to the content analyzed by the reception request analysis means, to extract outgoing mail to be transmitted from the mail of the mail storage means, save in the transmission temporary storage means, When extracting only new mail, the outgoing mail extracting means for those for which the received flag is not set and the copy receiving request means receive the received mail. A sending mode determining unit that determines whether or not to leave the mail to be transmitted with reference to the requested control code in the mail server or not and allocates the mail to the mail server; Even after storing the mail extracted by the outgoing mail extracting means in the stored mail in the temporary storing means for transmission, the mail copying means to be left in the mail storing means and the transmission mode judging means are divided. A mail transfer unit that deletes the mail extracted by the outgoing mail extraction unit from the mail stored in the mail storage unit in the temporary storage unit for transmission when the mail is stored in the temporary storage unit for transmission And transmitting the mail stored in the transmission temporary storage means to the terminal, and at this time, receiving the mail stored in the mail storage means. With a flag, it characterized by and a mail sending means for deleting mail of the transmission in temporary storage means.

[0010] Further, in the invention according to claim 3 of the present invention, the terminal according to claim 2, wherein the terminal requests the number of transmitted mails among the mails stored in the mail storage means. The mail server further includes a mail number request unit, wherein the mail server receives the request by the received mail number request unit, and counts the number of transmitted mails among the mails stored in the mail storage unit. It is characterized by further comprising a number counting means, and a number notification means for notifying the requesting terminal of the number issued by the transmitted mail number counting means.

[0011] Further, an invention according to claim 4 of the present invention is an e-mail receiving method for receiving a mail in a mail server at a terminal on the receiving side, wherein the terminal receives the already received mail. A request to the mail server to receive all the mails in the mail server including the new mail, or to receive only new mails that have not already been received. A mail reception requesting step of making a request to the mail server to receive or not to leave the mail, and a mail receiving step of receiving a mail transmitted from the mail server, wherein the mail server comprises: The mails received from the mail server are stored in the order in which they were received, and the mails to be transmitted to the terminal requesting the reception are copied and temporarily stored. And analyzing a control code for receiving the received mail set by the terminal including the received mail or only receiving a new mail, outputting the control code as determination information, and according to the determination information, Out of the mails to be sent to the user, the mail is extracted as outgoing mail, and whether or not the outgoing mail is to be left in the mail server is determined and sent to the terminal. And setting a received flag in the mail.

[0012] Further, the invention according to claim 5 of the present invention is an e-mail receiving method for receiving a mail in a mail server at a terminal on the receiving side, wherein the terminal receives already received mail. A received mail requesting step of requesting the mail server to receive all mails in the mail server including the new mail or only new mails that have not been received, and A copy reception requesting step of making a request to the mail server to leave or not to leave the mail server, and a mail receiving step of receiving a mail transmitted from the mail server, wherein the mail server comprises: A mail storing step of storing mail received from another mail server in the order in which they are received; A transmission temporary storage step of copying and storing temporarily from the accumulation step, a reception request analysis step of analyzing and outputting a control code requested to be received by the received mail request step, and an analysis by the reception request analysis step. According to the contents, the outgoing mail to be transmitted is extracted from the mails in the mail storing step, and is stored in the transmitting temporary storage step,
When extracting only the new mail, referring to a control code requested to be received by the outgoing mail extraction step for those for which the received flag is not set, and the copy reception request step, A sending mode determining step of determining whether to leave the message in the mail server or not, and receiving the sorting in the sending mode determining step. After storing the extracted mail in the temporary storage step for transmission,
A mail copying step to be left in the mail storage step;
In response to the sorting of the transmission mode determining step, the mail storage step stores the mail extracted in the transmission mail extraction step among the mails stored in the mail storage step in the transmission temporary storage step. Sending the mail stored in the temporary storage step for transmission to the terminal, setting the received flag on the mail left in the mail storage step, An e-mail receiving method, comprising: a mail transmitting step of deleting the mail stored in the transmitting temporary storage step.

[0013] Further, in the invention according to claim 6 of the present invention, the terminal according to claim 5 wherein the terminal requests the number of transmitted mails among the mails stored in the mail storing step. The number of transmitted mails, wherein the mail server counts the number of transmitted mails among the mails stored in the mail storage step in response to the request by the received mail number requesting step, further comprising: It is characterized by further comprising a counting step, and a number notification step of notifying the requesting terminal of the number issued in the transmitted mail number counting step.

Further, according to a seventh aspect of the present invention, there is provided a recording medium for recording a computer program for receiving a mail stored in a mail server at a terminal on the receiving side, the receiving medium being set by the terminal. The request to receive the message including the completed mail or only the new mail
A reception request analysis function for analyzing and outputting, a transmission mail extraction function for extracting a transmission mail to be transmitted to the terminal according to the content analyzed by the reception request analysis function, and a mail server for transmitting the transmission mail. A transmission mode determination function for determining whether to leave or not to leave, and a mail copy function for receiving the distribution of the transmission mode determination function and leaving the transmission mail in the mail server among the mails in the mail server. Receiving a distribution of the transmission mode determining function, a mail moving function of deleting the transmitted mail from the mail server among the mails in the mail server, and transmitting the transmitted mail to the terminal; A received flag is set for the outgoing mail left in the mail server, and the outgoing mail temporarily stored in the mail server. And mail transmission function of deleting, recording a computer program for implementing the features.

Further, according to an eighth aspect of the present invention, the recording medium according to the seventh aspect, wherein the recording medium counts the number of transmitted mails among the mails in the mail server. It is characterized by recording a computer program for further realizing a function and a number notification function of notifying the requesting terminal of the number issued by the transmitted mail number counting means.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) Next, a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the first embodiment of the present invention.

Referring to FIG. 1, in a first embodiment of the electronic mail receiving system of the present invention, a user (mail receiving requester) requests / receives an electronic mail (hereinafter referred to as mail or electronic mail). The system includes a terminal (client) 100 for performing the transmission and a mail server 200 for controlling and storing the transmission of the mail.

The terminal 100 has a mail receiving requesting means 110
And mail receiving means 120. The mail reception requesting unit 110 includes a received mail requesting unit 111 and a copy reception requesting unit 112.

The mail server 200 includes a processing device 210 that operates under program control, and a storage device 220. The processing device 210 includes a reception request analysis unit 211.
Sending mail extracting means 212 and sending form determining means 2
13, mail copying means 214, mail moving means 21
5 and a mail transmission means 216. The storage device 220 includes a mail storage unit 221 and a transmission temporary storage unit 2
22. Each of these means operates as follows.

The received mail requesting means 111 is provided by a user who operates a mailer (e-mail processing client software).
Depending on the value set in, all the mails on the mail server 200 including the already received mails are received, or only new mails that have not been received (unreceived mails) are received. Or a reception request of any of the forms is made to the mail server 200.

The copy reception request means 112 leaves (copies) the received mail (that is, received mail) on the mail server 200 according to the value set by the user with the mailer, or The mail server 200 makes a reception request to the mail server 200 in any form of not leaving (moving) on the mail server 200. In other words, the copy reception request unit 112 determines whether or not to leave the mail currently on the mail server 200 on the mail server after receiving the mail according to the value set by the mailer by the user. Perform for 200.

The reception request analyzing means 211 analyzes and refers to a control code set by the user to receive the received mail including the received mail or to receive only the new mail, and to output the information as judgment information.

The outgoing mail extracting unit 212 sends the mail to be transmitted to the user (sending out of the mails stored in the mail storing unit 221) in accordance with the contents (judgment information) analyzed by the receiving request analyzing unit 211. Mail) (refer to the mark that has been received by the user at the time of sending the mail (hereinafter referred to as a received flag)), and the extracted (sent mail) is a mail that can be sent to the user as it is Is stored (stored) in the transmission temporary storage unit 222 as
Is done. When extracting only new mails, those for which the received flag is not set (= '0') are targeted.

The transmission mode determining means 213 refers to the control code set by the copy / reception requesting means 112 and leaves (copies) the mail to be transmitted to the user on the mail server 200, or leaves the mail on the mail server 200. It is determined whether or not there is (move), and is distributed to the mail copying unit 214 or the mail moving unit 215.

The mail copying means 214 is a mail server 2
The mails extracted by the outgoing mail extracting unit 212 out of the mails stored in the mail storage unit 221 are stored (copied) in the mail storage unit 221 even after they are stored in the transmission temporary storage unit 222.

The mail moving means 215 is a mail server 2
When the mail extracted by the outgoing mail extracting unit 212 from the mail stored in the mail storage unit 221 is stored in the transmission temporary storage unit 222, the mail storage unit 22
Delete from 1 (move).

The mail transmitting means 216 transmits the transmission mail stored in the transmission temporary storage unit 222 to the user terminal 10.
Send to 0. At this time, the reception flag is set (= “1”) in the header of the mail stored (copied) stored in the mail storage unit 221, and the transmission temporary storage unit 22 is set.
Delete the outgoing mail in 2.

The mail storage unit 221 stores and stores mails received from other mail servers in the order in which they are received. When the extracted mail is stored in the temporary storage for transmission 222, it is basically permanently stored except for being deleted by the mail moving unit 215.

The transmission temporary storage unit 222 copies the mail to be transmitted to the user who has made the mail reception request from the mail storage unit 221 and temporarily stores it. The mail placed (stored) here is deleted by the mail sending means 216 when sending the mail.

The mail receiving means 120 receives the mail transmitted by the mail transmitting means 216,
Side of the receiving port.

Next, the operation of the first embodiment of the present invention will be described with reference to the drawings. FIG. 2 is a flow chart (flow chart) showing the operation of the first embodiment of the present invention. The overall operation of the first embodiment will be described in detail with reference to FIGS.

First, the user sends a mail reception request to the mail server 2 by the mail reception requesting means 110 of the terminal 100.
00 (step A1). The mail server 200 that has received the mail reception request is sent to the reception request analysis unit 211.
Thus, it is determined from the control code whether to send all the mails on the mail server 200 including the sent mail or to send only the new mail (step A).
2). Next, a mail to be transmitted to the user is extracted based on the determination information analyzed in step A2 (step A3), and further transmitted to the user based on the control code set by the copy reception requesting unit 112. Leave (copy) the mail on the mail server 200,
Alternatively, it is determined whether to leave (move) on the mail server 200. If it is determined that the mail is to be left (copied) on the mail server 200, the mail copying means 2
14, and if it is determined that the mail is not to be left (moved) on the mail server 200, the mail is transferred to the mail moving means 215 (steps A4 and A5). When passed to the mail copying means 214, the transmitted mail extracting means 2
The mail extracted in the temporary storage for transmission 222 by step 12 is left as it is in the mail storage 221 (copied).
(Step A6). When the mail is transferred to the mail moving unit 215, the mail extracted by the transmitted mail extracting unit 212 into the temporary storage for transmission 222 is deleted (moved) from the mail storage unit 221 (step A7).

Lastly, the mail transmitting means 216 transmits the transmission mail stored (stored) in the transmission temporary storage unit 222 to the user terminal 100, and at that time, saves (stores) the mail in the mail storage unit 221. ), A received flag is set in the header of the e-mail, and the e-mail for transmission in the temporary storage for transmission 222 is deleted (step A8). Then, the user who has made the mail reception request receives the mail transmitted from the mail server 200 by the mail receiving means 120 (step A9).

Next, a description will be given using a specific example. FIG.
FIG. 4 is a diagram showing a specific example of the operation of the first embodiment of the present invention.

As shown in FIG. 3, first, mail received from another mail server is sent to the mail server 20 for each user.
0 is stored (stored) in the mail storage unit 221. Now, one mail to User A (User A) has arrived.
Assume that no other mail is stored (stored).
In the state where the first mail (mail 1) is stored (stored) in the mail storage unit 221 for the user A, the user receives a mail reception request. , "Receive all mails including received mail", and copy reception requesting means 11
If the request content of No. 2 is "leave mail on the mail server 200", there is only new mail, so the first request content has no particular effect, but according to the second request content. , Mail 1 is a temporary storage for transmission 22
2, the mail remains in the mail storage unit 221 after being transmitted (Example 1).

Next, when another new mail (mail 2) arrives, the mail 2 is stored in the mail storage unit 221.
Is stored behind the mail 1 stored (stored) in the mail. In this state, there is a mail reception request from the user. At this time, the request content of the received mail request means 111 is “Receive only new mail”, and the request content of the copy reception request means 112 is If it is "leave mail on mail server 200", only new mail 2 is placed in temporary storage for transmission 222 and sent to the user, but both mail 1 and mail 2 are left in mail storage 221. (Execution example 2).

Next, when two more new mails (mail 3 and mail 4) arrive, mail 3 and mail 4
Are stored after the mails 1 and 2 stored (stored) in the mail storage unit 221. In this state, there is a mail reception request from the user. At this time, the request content of the received mail request means 111 is “Receive only new mail”, and the request content of the copy reception request means 112 is If it is "leave mail on mail server 200", new mail 3 and mail 4 are placed in temporary storage for transmission 222 and transmitted to the user, but once transmitted (received from terminal 100; E-mail 1)
Email 2 is not sent. However, all the mails of mail 1, mail 2, mail 3, and mail 4 have the mail storage unit 2
21 (execution example 3).

Next, a case will be described in which the mail 3 and the mail 4 have arrived immediately after the execution example 2 and the contents of the mail reception request of another pattern. The request content of the received mail request unit 111 from the user is “Receive all mail including the received mail”, and the request content of the copy reception request unit 112 is “mail on the mail server 200”. Do not leave "
All the mails (mails 1 to 4) stored (stored) in the mail storage unit 221 are stored in the transmission temporary storage unit 222,
The mail is transmitted to the user, but at the same time, all the mails are deleted from the mail storage unit 221 and the mail storage unit 221 is deleted.
Is in a state in which nothing remains (execution example 4).

The last figure (right) <After transmission 1> shows Example 3 of execution.
In the state after, all transmitted mails 1 to 4 remain on the mail server 200, but no new mail has arrived.

The last diagram (left), <After transmission 2>, shows Example 4 of execution.
In the state after, two new mails (mail 5, mail 6) have arrived.

Thereafter, the pattern is the same as any one of the execution examples 1 to 4.

(Second Embodiment) Next, a second embodiment of the present invention will be described in detail with reference to the drawings. FIG. 4 is a block diagram showing the configuration of the second embodiment of the present invention.

Referring to FIG. 4, the second embodiment is similar to the first embodiment.
The terminal (client) 100 'is the first (client) 100 shown in FIG.
In addition to the configuration of the terminal 100 according to the embodiment, a processing device 210 ′
However, in addition to the configuration of the processing device 210 according to the first embodiment shown in FIG.
17 in that it has a number notification means 218.

The received mail number requesting means 130 sends to the mail server 200 ′, among the mails stored (stored) in the mail storage unit 221, the transmitted mail (the received flag is set (= ′ 1)). ')) Request the number of emails.

The transmitted mail number counting means 217
Upon receiving the request from the received mail number requesting means 130,
Among the mails stored (stored) in the mail storage unit 221, the number of transmitted (received flag is set) mails is counted.

The number notification means 218 notifies the terminal 100 ′ which has requested (requested the notification of the number of transmitted mails) the number issued by the transmitted mail number counting means 217.

Next, the operation of the second embodiment will be described in detail with reference to the drawings, with reference to the flowcharts of FIGS. FIG. 5 is a flowchart (flow chart) showing the operation of the second embodiment of the present invention.

In the first embodiment shown in FIG. 1 and FIG. 2, the user
It is necessary to set whether or not to request the received mail in a state where the information on whether or not the mail exists on 0 ′ or the number of such mails is not provided except in the user's own memory. On the other hand, in the second embodiment, before setting, the mail storage unit 221 requests the mail server 200 'for information on the number of received mails (step B1 in FIG. 5). Mail server 2 that received
00 ′ counts the number of transmitted mails in the mail storage unit 221 (step B2) and notifies the terminal 100 ′ of the user who has requested the number (step B).
3). This allows the user to specify
In the first place, it is possible to know whether or not a received mail exists, and if so, it is possible to determine whether or not to receive it according to the situation at that place by checking the number of cases. Step A1
Step A9 is the same as FIG.

In the second embodiment, the user knows in advance whether or not a received mail exists on the mail server 200 ′, so that the mail server 200 ′ in which only new mail exists can be used. It is possible to avoid setting a meaningless condition such as "receive all mail including received mail". As a result, the effect of reducing the processing load of the condition determination can be expected. Also, even if there are received emails, knowing the number of emails
In consideration of the situation at that time and the large number of mails, there is also an effect that it is possible to set a reception request by appropriate judgment according to the user's convenience, such as “receive only new mail”.

(Third Embodiment) Next, a third embodiment of the present invention will be described in detail with reference to the drawings. FIG. 6 is a block diagram showing the configuration of the third embodiment of the present invention.

Referring to FIG. 6, the third embodiment is different from the embodiment shown in FIG.
In addition to the first embodiment shown in FIG. 1, a recording medium 300 storing an e-mail receiving program is provided, and a mail server 200 '' is provided with a processing device 230 controlled by the e-mail receiving program. That is. The recording medium 300 may be a magnetic disk, a semiconductor memory, or another recording medium.

The electronic mail receiving program is stored in the recording medium 3
00 to the processing device 230,
Control the operation of. The processing device 230 executes the same processing as the processing by the processing devices 210 and 210 ′ under the control of the e-mail receiving program.

[0053]

The first effect is that when a plurality of mail receiving terminals are provided in a kitchen, a mail received from one terminal can be received again by another terminal. as a result,
For example, after checking an e-mail on the go, the same e-mail can be imported to a terminal at home or office, which facilitates centralized management of e-mail. The reason is that the same mail can be left on the mail server even after receiving the mail.

The second effect is that when it is determined that there is no need to re-receive the data after this, it is possible to prevent the data from being left in the server as before. As a result, even if the mail can be left in the mail server, it is possible to avoid wasting resources such as leaving mail in the mail server unnecessarily, and avoid the negative aspects such as pressure on the mail server. The reason is that the user can select whether or not re-reception is required at the time of reception request.

The third effect is that, when the user wants to receive only new mail on the go, even if the mail server remains on the mail server,
It is also possible to not receive received mail. As a result, various mail receiving modes can be selected according to the environment and the convenience of the terminal when receiving the mail, and the work efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment of the present invention.

FIG. 2 is a flowchart (flowchart) showing an operation of the first embodiment of the present invention.

FIG. 3 is a diagram showing a specific example of the operation of the first embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a second embodiment of the present invention.

FIG. 5 is a flowchart (flow chart) showing an operation of the second embodiment of the present invention.

FIG. 6 is a block diagram showing a configuration of a third embodiment of the present invention.

[Explanation of symbols]

 100, 100 'terminal (client) 110 e-mail reception requesting means 111 received e-mail requesting means 112 copy reception requesting means 120 e-mail receiving means 130 received e-mail number requesting means 200, 200', 200 '' e-mail server 210, 210 'processing Apparatus 211 Reception request analyzing means 212 Outgoing mail extracting means 213 Sending form judging means 214 Mail copying means 215 Mail moving means 216 Mail transmitting means 217 Sent mail number counting means 218 Case number notifying means 220 Storage device 221 Mail storage unit 222 Temporary for sending Storage unit 230 Processing device

Claims (8)

[Claims] 1. An electronic mail receiving system for receiving a mail on a mail server at a terminal on a receiving side, wherein the terminal transmits all mails on the mail server including a received mail already received. A request to receive or to receive only new mail that has not already been received is made to the mail server, and further, a reception request to leave or not to leave the received mail in the mail server is sent. Mail receiving request means for performing a mail server, and mail receiving means for receiving a mail transmitted from the mail server, the mail server stores the mail received from another mail server in the order received, Storage means for copying and temporarily storing a mail to be transmitted to the terminal that has made a mail reception request, and the received mail set by the terminal; And output the determination information of whether to receive only the new mail or the new mail, and according to the determination information, extract the mail to be transmitted to the terminal from the mails in the storage unit as the transmission mail. Processing means for determining whether or not to leave the outgoing mail in the mail server and transmitting it to the terminal, and at this time, setting a received flag for the remaining outgoing mail. Email receiving system. 2. An electronic mail receiving system for receiving a mail on a mail server at a terminal on a receiving side, wherein the terminal transmits all mails on the mail server including a received mail already received. Received mail request means for making a request to the mail server to receive or to receive only new mail that has not been received, and reception of whether to leave the received mail in the mail server A copy receiving requesting unit for making a request to the mail server; and a mail receiving unit for receiving a mail transmitted from the mail server, wherein the mail server receives mails received from other mail servers in the order in which the mails are received. Mail storage means for storing, and temporary storage means for transmission for temporarily storing a mail to be transmitted to the terminal by copying the mail from the mail storage means A reception request analysis unit that analyzes and outputs a reception request by the received mail request unit, and a transmission target in the mail of the mail storage unit according to the content analyzed by the reception request analysis unit. The extracted mail is stored in the temporary storage for transmission, and only the new mail is extracted. A transmission mode determining unit that determines whether or not a mail to be transmitted according to a reception request by the request unit is to be left or not to be stored in the mail server and distributes the mail, and that the mail is received by the transmission mode determining unit and stored in the mail storage unit. A mail that is stored in the mail storage unit even after storing the mail extracted by the transmission mail extraction unit in the mail in the transmission temporary storage unit. Receiving the mails extracted by the outgoing mail extracting means from the mails stored in the mail storing means in response to the sorting performed by the copying means and the transmission mode determining means, The mail transfer means to be deleted from the mail storage means and the mail stored in the transmission temporary storage means are transmitted to the terminal, and at this time, the received flag is set for the mail left in the mail storage means. And an e-mail transmitting means for deleting the e-mail stored in the transmitting temporary storage means. 3. The apparatus according to claim 1, wherein the terminal further includes a received mail number requesting unit for requesting the number of transmitted mails among the mails stored in the mail storing unit, wherein the mail server stores the received mail. In response to the request by the number requesting means, the transmitted mail number counting means for counting the number of transmitted mails among the mails stored in the mail storing means, and the transmitted mail number counting means. 3. The e-mail receiving system according to claim 2, further comprising: a number notification unit that notifies the terminal that has requested the number of cases. 4. A method for receiving an e-mail in a mail server at a terminal on a receiving side, wherein the terminal transmits all e-mails in the mail server including received mails already received. A request to receive or to receive only new mail that has not already been received is made to the mail server, and further, a reception request to leave or not to leave the received mail in the mail server is sent. A mail reception requesting step to be performed on a mail server, and a mail reception step of receiving a mail transmitted from the mail server, the mail server accumulating mail received from another mail server in the order received, A storage step of copying and temporarily storing a mail to be transmitted to the terminal that has made a mail reception request, and the reception set by the terminal. Outputs the determination information of whether to receive the received mail including the trusted mail or only the new mail, and transmits the mail to be transmitted to the terminal among the mails stored in the storage step according to the determination information. Extracting the transmitted mail as a mail, determining whether or not to leave the transmitted mail in the mail server, transmitting the mail to the terminal, and setting a received flag on the remaining transmitted mail. Characteristic e-mail receiving method. 5. An electronic mail receiving method for receiving a mail in a mail server at a terminal on a receiving side, wherein the terminal transmits all mails in the mail server including received mails already received. A received mail requesting step of making a request to the mail server to receive or to receive only new mail that has not been received, and receiving whether to leave the received mail in the mail server or not A copy receiving requesting step of making a request to the mail server, and a mail receiving step of receiving a mail transmitted from the mail server, wherein the mail server receives mails received from other mail servers in the order received. Storing the mail to be stored and copying the mail to be transmitted to the terminal from the mail stored in the mail storing step; A temporary storing step for temporarily storing the received mail, a receiving request analyzing step for analyzing and outputting the receiving request in the received mail requesting step, and storing the mail in accordance with the content analyzed in the receiving request analyzing step. The mail to be transmitted is extracted from the mails accumulated in the step, saved in the transmission temporary storage step, and when only the new mail is extracted, the mail for which the received flag is not set is regarded as the target. Receiving the transmission form, determining whether the mail to be transmitted according to the reception request by the copy reception request step is to be left or not to be left in the mail server, and allocating the mail. Extracted from the mail stored in the mail storage step in the outgoing mail extraction step. Even after the mail is stored in the transmission temporary storage step, the mail copy step to be left in the mail storage step and the transmission mode determination step are sorted, and the mail is stored in the mail storage step. A mail transfer step for deleting the mail extracted in the mail extraction step from the storage in the mail storage step when storing the mail in the transmission temporary storage step; and storing the mail stored in the transmission temporary storage step in the terminal. Transmitting, at this time, setting the received flag in the mail left in the mail storing step and deleting the mail stored in the temporary storing step for sending. Email receiving method. 6. The received mail number requesting step in which the terminal requests the number of transmitted mails among the mails stored in the mail storing step, wherein the mail server includes the received mail number In response to the request by the number requesting step, the transmitted mail number counting step for counting the number of transmitted mails out of the mails stored in the mail storing step, and the transmitted mail number counting step are performed. 6. The method according to claim 5, further comprising the step of notifying the terminal that has requested the number of cases. 7. A recording medium for recording a computer program for receiving a mail in a mail server at a terminal on a receiving side, wherein the terminal includes a received mail including a received mail or only a new mail set by the terminal. Request analysis function for analyzing and outputting a reception request as to whether or not to receive, and a transmission mail extraction function for extracting a transmission mail to be transmitted to the terminal according to the content analyzed by the reception request analysis function A transmission mode determining function of determining whether to leave or not leave the transmitted mail in the mail server, and receiving the distribution of the transmission mode determining function. The mail copy function to be left in the mail server and the transmission mode determination function are sorted, and out of the mails in the mail server, the transmission mail A mail transfer function for deleting a mail from the mail server, transmitting the outgoing mail to the terminal, setting a received flag on the outgoing mail left in the mail server, and temporarily storing the mail in the mail server. A recording medium recording an e-mail reception program, which records a computer program for realizing a mail transmission function of deleting the stored transmission mail. 8. The sent mail count function for counting the number of sent mails among the mails on the mail server, and the number of mails sent by the sent mail count function is stored in the recording medium. The recording medium according to claim 7, wherein a computer program for further realizing a function of notifying the number of items to be notified to a terminal is recorded.