JP2000293445A - Electronic mail client, electronic mail server, electronic mail receiving method, electronic mail distributing method, electronic mail system, recording medium recording electronic mail receiving processing program and recording medium recording electronic mail distribution processing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly control a time and cost for communication in a mail receiving processing of the form of a meter rate charging (public line network, ISDN). SOLUTION: In a mail receiving terminal 1, dial up connection is executed to a mail server based on condition data composed of a connection processing condition composing part 13 and a received mail condition composing part 14. The server 2 extracts received mail information prepared by the part 14 to transfer it to a received mail condition analytic part 25. The part 25 analyzes received mail information and prepares mail taking out information for taking out a mail to transfer from a mail spool box 27 to transfer it to a received mail taking out part 26. The part 26 takes out a mail to transfer from the box 27 in accordance with mail taking out information prepared by the part 25, and transfers the mail to the terminal 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to electronic mail,
In particular, the present invention relates to an e-mail server, an e-mail client, and an e-mail system that search for and communicate mail that meets conditions in dial-up connection.

[0002]

2. Description of the Related Art Conventionally, in a dial-up connection type e-mail service, a mail server spools an e-mail sent to a certain mail recipient as a received mail on a server, and then the mail recipient sends the mail to a mail server. When the dial-up connection is made, the mail spooled on the mail server is transmitted to the mail recipient, and the mail recipient receives the electronic mail on the mail receiving terminal.

FIG. 10 is a block diagram showing an example of a conventional dial-up connection type electronic mail service. FIG.
At 0, the mail server 2 receives an e-mail sent from a plurality of e-mail senders 31 to a mail recipient. The mail spool box 27 stores the electronic mail received by the mail server 2. The mail receiving terminal 1 makes a dial-up connection to the mail server 2 and takes out an electronic mail from the mail spool box 27.

Japanese Patent Application Laid-Open No. Hei 10-161949 discloses an "e-mail transmission / reception system and apparatus" which searches for a client that inputs a keyword contained in a necessary e-mail and transmits it to a server, and a client that contains the keyword. A server for transmitting data is disclosed.

In Japanese Unexamined Patent Application Publication No. Hei 6-276224, "mail retrieval method", when retrieving mail stored in a mailbox file on the server side, analysis and search processing of search conditions conventionally performed on the server side are performed by the client. A mail retrieval method performed by the side is disclosed.

[0006]

However, in the conventional dial-up connection type e-mail service,
There are the following issues. Dial-up connection type e-mail services are based on so-called pay-as-you-go (telephone network, ISD
N) The service is of the form, but since the e-mail recipient cannot select and receive the desired e-mail from the spooled e-mail, it cannot be processed by a terminal having a small processing function such as a mobile terminal. Data content /
All e-mails with a data amount and e-mails that do not require urgent processing are all sent unconditionally to the e-mail recipient, resulting in enormous waste in e-mail reception time and communication cost.

Japanese Patent Laid-Open Publication No. Hei 10-161949, "E-mail transmission / reception system and apparatus", only searches for a keyword included in a required e-mail, but does not specify the sender, address, size, etc. of the e-mail. There is no problem.

[0008] Japanese Unexamined Patent Publication No. Hei 6-276224 discloses a "mail retrieval method", which has a problem that a retrieval key needs to be extracted when a mail is received on the server side.

[0009]

According to a first aspect of the present invention, an e-mail client receives an e-mail from an e-mail server through a dial-up connection, and transmits conditions of the received e-mail to the e-mail server.

[0010] The second electronic mail client of the present invention comprises:
In an e-mail client that receives an e-mail from an e-mail server by a dial-up connection, an input unit that inputs reception conditions of the e-mail to be received, a reception mail condition assembly unit that assembles the reception conditions from the input unit, A connection condition assembling unit that assembles connection conditions for dial-up connection, a connection processing unit that assembles the connection conditions and the reception conditions to create instruction data, and transmits the instruction data from the connection processing unit to the e-mail server. A data communication unit that receives the electronic mail from the electronic mail server; and a mailbox that stores the electronic mail.

The first electronic mail server of the present invention is an electronic mail server connected to a network and dialed up from an electronic mail client, wherein the electronic mail server receives the conditions of the electronic mail to be transmitted to the electronic mail client from the electronic mail client. Then, the e-mail that matches the condition is retrieved and transmitted to the e-mail client.

A second electronic mail server according to the present invention is an electronic mail server connected to a network and dialed up from an electronic mail client, wherein: a mail spool box for storing electronic mail addressed to the electronic mail client; A user authentication unit that performs user authentication based on a connection condition sent from a client, a received mail condition analysis unit that analyzes reception conditions of the email received by the email client, and a mail spool box in the mail spool box that uses the reception condition. A mail retrieval unit that retrieves and retrieves mail; and a data communication unit that transmits the retrieved mail to the electronic mail client.

In the first electronic mail system of the present invention, the first electronic mail server of the present invention or the second electronic mail server of the present invention is connected via a network.

In the second electronic mail system of the present invention, the first electronic mail client of the present invention or the second electronic mail client of the present invention is connected to the electronic mail system of the present invention by a dial-up line.

An electronic mail receiving method according to the present invention is the electronic mail receiving method for receiving an electronic mail from an electronic mail server through a dial-up connection, wherein a first step of inputting reception conditions of the received electronic mail; A second step of assembling the reception conditions from the step, a third step of assembling the connection conditions for the dial-up connection, a fourth step of assembling the connection conditions and the reception conditions and creating instruction data A fifth step of transmitting the instruction data from the fourth step to the e-mail server, a sixth step of receiving the e-mail from the e-mail server, and storing the e-mail in a mailbox. And a seventh step.

An electronic mail distribution method according to the present invention is an electronic mail distribution method for an electronic mail server which is connected to a network, is dial-up connected from an electronic mail client, and has a mail spool box for storing electronic mail addressed to the electronic mail client. A first step of performing user authentication based on a connection condition sent from the electronic mail client, a second step of analyzing a reception condition of the electronic mail received by the electronic mail client, and the mail according to the reception condition. The method includes a third step of searching for and retrieving the mail in the spool box, and a fourth step of transmitting the retrieved mail to the electronic mail client.

The first recording medium of the present invention is an electronic mail receiving program for causing a computer to execute the first to seventh steps of the electronic mail receiving method of the present invention. An e-mail reception processing program for causing a computer to execute the first to fourth steps of the e-mail distribution method of the present invention is recorded.

[0018]

Next, an electronic mail system according to 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 electronic mail system according to the first embodiment of the present invention. In FIG. 1, a mail receiving terminal 1 indicates various terminals capable of dial-up connection, and includes a mail server 2 and a public line communication network 3.
Alternatively, a dial-up connection is made through ISDN (Integrated Services Digital Communication Network 3).

The mail receiving terminal 1 receives a mail to be received by the mail recipient, such as a selective receiving by mail size, a selective receiving by mail sender name,
Alternatively, a data input unit 12 for inputting dial-up connection conditions such as modem information and login information used for selective reception by a mail sender domain name and dial-up connection, and a dial-up such as modem information and login information input from the data input unit 12 Connection processing condition assembling unit 13 that reassembles connection conditions into data format to be transmitted to mail server 2 and dial-up connection information
A receiving mail condition assembling unit 14 that reassembles the receiving condition of the mail to be received by the mail receiver input from the data input unit 12 into the data format and the received mail information to be transmitted to the mail server 2; A connection processing unit 15 for making a dial-up connection request to the mail server 2 using the dial-up connection information created by the assembling unit 13 and the condition data such as the received mail information created by the received mail condition assembling unit 14; A terminal data communication unit 16 for exchanging data such as a mail body and dial-up connection information, a received mail storage unit 17 for receiving the selected mail transferred from the mail server 2 and storing it in a received mail box 18, Spool received mail specified by storage unit 17 And keep a receiving mail box 18.

The mail server 2 includes a server data communication unit 22 for exchanging data such as a mail body and dial-up connection information with the mail receiving terminal 1 in a dial-up connection state, and a connection destination when the mail receiving terminal 1 requests a dial-up connection. The user authentication unit 23 for checking the validity of the user information and the mail receiving terminal 1 after confirming the connection destination user information, a connection completion notification when the user authentications match, and a connection when the user authentications do not match. A connection receiving unit 24 for transmitting a refusal notice, and a received mail condition analyzing unit 25 for analyzing received mail information received from the mail receiving terminal 1 and assembling mail extraction information for extracting mail to be transferred to the mail receiving terminal 1.
And a mail receiver 26, which extracts the mail requested by the connected user from the plurality of mails spooled in the mail spool box 27 by the mail extraction information assembled by the received mail condition analyzer 25, And a mail spool box 27 for spooling the mail transmitted to the server until a transfer request from the mail receiver arrives.

Next, the operation of this embodiment will be described in detail with reference to FIGS. 1, 2 and 3.

FIG. 2 is a flowchart showing the operation of the electronic mail system according to the first embodiment of the present invention.
FIG. 3 is a diagram showing conditions of received mail in the electronic mail system according to the first embodiment of the present invention. In FIG. 3, all mails having a mail size of 1 Kbyte or less are received, all mails having the mail sender name “sender” are received, and the mail sender domain name is “
foobar. co. jp ”is a receiving condition when all mails of“ jp ”are received.

Dial-up connection conditions such as modem information to be used and user ID / password for dial-up connection are input from the data input unit 12 (step A in FIG. 2).
1). Subsequently, the received mail condition is input from the data input unit 12 (Step A2 in FIG. 2). Data input unit 12
The dial-up connection condition input from is supplied to the connection processing condition assembling unit 13. Further, the received mail condition similarly input from the data input unit 12 is supplied to the received mail condition assembling unit 14. The dial-up connection conditions supplied to the connection processing condition assembling unit 13 are assembled into dial-up connection information which is a data format to be supplied to the mail server 2. In parallel with this processing, the received mail condition assembling section 14 assembles received mail information in a data format to be supplied to the mail server 2 from the received received mail conditions. The dial-up connection information and the received mail information are transmitted to the connection processing unit 15.
Supplied to The connection processing unit 15 performs dial-up connection processing to the mail server 2 via the terminal data communication unit 16 and supplies dial-up connection information and received mail information to the mail server 2 (step A in FIG. 2).
3).

On the other hand, the mail server 2 communicates with the mail receiving terminal 1 via the server data communication unit 22, and receives dial-up connection information and received mail information from the mail receiving terminal 1. The dial-up connection user ID and password are supplied to the user authentication unit 23 from the received dial-up connection information, and the user authentication unit 23
It is determined whether or not the user is a connectable user (step B1 in FIG. 2). Based on the information determined by the user authentication unit 23, the connection receiving unit 24 notifies the mail receiving terminal 1 of the connection failure via the server data communication unit 22 if the user information cannot be connected ( Step B2 in FIG. 2). If it is determined that the user information is connectable, the connection receiving unit 24 transmits a connection completion notification to the mail receiving terminal 1 via the server data communication unit 22 (Step B3 in FIG. 2). When the connection is completed, the user information and the received mail information are supplied to the received mail condition analysis unit 25, and the received mail condition analysis unit 25 analyzes the information for extracting the e-mail to be transferred to the mail receiving terminal 1, and the analysis result From this, mail retrieval information is created. The created mail retrieval information is supplied to the mail retrieval unit 26, and the mail retrieval unit 26 selects only the mail corresponding to the supplied mail retrieval information from the mails addressed to the connected users spooled in the mail spool box 27. (Steps B4 and B5 in FIG. 2).
The mail addressed to the connected user retrieved by the mail retrieval unit 26 is supplied by the mail retrieval unit 26 to the terminal data communication unit 16 in the mail receiving terminal 1 via the server data communication unit 22 (Step B6 in FIG. 2).

In the mail receiving terminal 1, the terminal data communication unit 16 supplies the received mail storage unit 17 with all the mails addressed to the connected user received from the mail server 2. The received mail storage unit 17 stores the received mail in the received mail box 18 (Step A4 in FIG. 2). After the mail reception is completed, the line connection state between the mail receiving terminal 1 and the mail server 2 is lost due to the dial-up connection disconnection request input from the data input unit 12 (step A5 in FIG. 2).

Next, the operation of the first embodiment of the present invention will be described using a specific example.

FIG. 4 is a diagram showing a specific example of the configuration and operation of the electronic mail system according to the first embodiment of the present invention.
FIG. 5 is a diagram showing the instruction information 41 transmitted from the email client to the email server in the email system according to the first embodiment of the present invention. The instruction information 41 includes a user ID, a password, modem information, and received mail information.

In FIG. 4, the mail spool box 27 on the mail server 2 has a user “receive”.
A plurality of mails addressed to r "are in a spool state.
At this time, it is assumed that the user “receiver” makes a dial-up connection request from the mail receiving terminal 1 to the mail server 2. From the data input unit 12, use modem information, dial-up connection user ID "re"
receiver, a password "xxxxxx" are sequentially input, and finally, a received mail condition "SIZE <= 1K" is input. The received mail condition is "all spool mails having a mail size of 1 Kbyte or less are to be received." To do ". The connection processing condition assembling unit 13 is supplied with the used modem information, the user ID, and the password input by the user “receiver” from the data input unit 12.
, The received mail condition input by the user “receiver” from the data input unit 12, and finally, the information as shown in FIG. 5 is supplied to the connection processing unit 15. The instruction information 41 is used by the connection processing unit 15 at the time of dial-up connection processing to the mail server 2 and is used by the terminal data communication unit 1.
6 to the server data communication unit 22 of the mail server 2.

In the mail server 2, the validity of the user ID and the password is checked by the user authentication unit 23 using the instruction information 41. The mail server 2 stores the user “rec” in the user information managed by the mail server 2.
user "r"
The dial-up connection request from the mail receiving terminal 1 to the mail server 2 by the "receiver" is received. After that, the connection receiving unit 24 sends the request via the server data communication unit 22 based on the user information checked by the user authentication unit 23. The connection completion notification is notified to the mail receiving terminal 1. If there is no user information managed by the mail server 2 related to the user "receiver", the connection receiving unit 24 receives the mail via the server data communication unit 22. The terminal 1 is notified of the connection failure notification.

With the communication path between the mail receiving terminal 1 and the mail server 2 established, the received mail condition analyzing unit 25
Sends the user ID and the received mail information to the connection receiving unit 24
Then, it creates mail retrieval information relating to the mail requested by the user “receiver” and supplies it to the mail retrieval unit 26. The mail retrieval unit 26 searches the mail spool box 27 and retrieves the mail information of the mail currently spooled in the mail spool box 27 (mail sender address, mail sender domain name,
Email recipient address, email size, etc.). Thereafter, the mail extracting unit 26 determines that the mail information matches with the mail extracting information created by the received mail condition analyzing unit 25. In the first embodiment,
Check “all mails whose mail recipient address is“ receiver ”and the mail size is 1 Kbyte or less”, and take out all the checked mails from the mail spool box 27. The mail retrieved from the mail spool box 27 by the mail retrieval unit 26 is transferred to the terminal data communication unit 16 on the mail receiving terminal 1 via the server data communication unit 22 by the mail retrieval unit 26.

In the mail receiving terminal 1, all mails transferred to the terminal data communication unit 16 are stored in the received mail storage unit 17.
Is stored in the reception mailbox 18. When the storage of the mail in the reception mailbox 18 is completed, the user “receiver” inputs a dial-up connection disconnection request to the mail server 2 from the data input unit 12. The input dial-up connection disconnection request is transmitted to the mail server 2 by the connection processing unit 15, and when the disconnection request is accepted by the mail server 2, the communication path between the mail receiving terminal 1 and the mail server 2 is disconnected. When the communication path is broken, the connection is lost.

Next, an electronic mail system according to a second 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 electronic mail system according to the second embodiment of the present invention. The second embodiment of the present invention further devises a method of specifying a received mail condition. 6, in addition to the configuration of the mail receiving terminal 1 in the first embodiment shown in FIG. 1, a received mail condition setting file 19 and a setting file reading unit 10 are further provided.

FIG. 7 is a diagram showing conditions of received mail in the electronic mail system according to the second embodiment of the present invention. The receiving conditions are SIZE <= 2K, and all mails whose mail size is 2K bytes or less are to be received.
And NAME = sender2, and the mail sender name is “s”
"end2" is to be received. The received mail condition setting file 19 describes the received mail condition as shown in FIG. The setting file reading unit 10 can set the default value of the received mail condition without inputting the received mail condition from.
From the received mail condition setting file 19, the described received mail condition is read, stored in a buffer, and passed to the received mail condition assembling unit 14.

The operation of the second embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 8 is a flowchart showing the operation of the electronic mail system according to the second embodiment of the present invention. 8, the data input unit 12, the connection processing unit 15, the terminal data communication unit 16, the received mail storage unit 17, the server data communication unit 22, and the user authentication unit 23 shown in steps A1 to A5 and B1 to B6 in FIG. , Connection receiving unit 2
4. The operations of the received mail condition analysis unit 25 and the mail extraction unit 26 are the same as the operations of each processing unit of the first embodiment.

In the first embodiment, the received mail information is assembled only based on the received mail conditions input from the data input section 12 by the mail receiver. In the present embodiment, the received mail condition input from the data input unit 12 is described in the received mail condition setting file 19 (step C1 in FIG. 8), and the content of the description is read by the setting file reading unit 10 and buffered. (Step C2 in FIG. 8). This procedure can save the mail receiver from having to input the received mail conditions. Further, in addition to the received mail condition set in the received mail condition setting file 19, the received mail condition can be input from the data input unit 12 as in the related art (step A2 in FIG. 8). In the received mail condition assembling unit 14, the received mail condition of the received mail condition setting file 19 stored in the buffer by the setting file reading unit 10 and the received mail condition directly input from the data input unit 12 are used.
The data format (received mail information) to be supplied to the mail server 2 is assembled (step C3 in FIG. 8).

Next, the operation of the second embodiment of the present invention will be described using a specific example.

FIG. 9 is a diagram showing a specific example of the configuration and operation of the electronic mail system according to the second embodiment of the present invention.
Before starting the dial-up connection, the received mail conditions as shown in FIG. 7 are described in the received mail condition setting file 19. The received mail condition shown in FIG.
ZE <= 2K (all mails with a mail size of 2K bytes or less are to be received) "
The line marked with “#” is a comment sentence. Thereafter, the user “receiver” makes a dial-up connection request from the mail receiving terminal 1 to the mail server 2, and the data input unit 12 sends the received mail condition setting file 19 to the received mail condition setting file 19. The condition "N
AME = sender2 (Email sender name is “send
er2 ") is input. The setting file reading unit 10 reads the received mail condition described in the received mail condition setting file 19, that is, “SIZE <= 2K” into a buffer and supplies the buffer to the received mail condition assembling unit 14.
The dial-up connection condition input from the data input unit 12 is supplied to the connection processing condition assembling unit 13, and the received mail condition assembling unit 14 simultaneously receives the received mail condition supplied from the setting file reading unit 10 and the data input unit 12. Is analyzed, and the instruction information 41 is supplied to the connection processing unit 15.

The subsequent operation is the same as the operation of the first embodiment. As a result of the operation of the second embodiment, "all the mails whose mail recipient address is" receiver ", the mail size is 2 Kbytes or less, and the mail source address is" sender2 "" are the mail spool box. 27, and stored in the receiving mailbox 18 on the mail receiving terminal 1.

Each step described with reference to FIGS. 2 and 8 can be processed by a program of the computer 60. Further, the processing including the steps described with reference to FIGS.
1 can be stored.

FIG. 10 shows a computer 60 for executing the database search method according to the embodiment of the present invention and a recording medium 61 on which the processing is stored.

[0044]

As described above, according to the present invention, at the time of dial-up connection from the mail receiving terminal to the mail server, the mail is spooled in the receiving mailbox on the mail server according to the received mail condition set in advance by the mail receiver. It is possible to selectively receive the mail addressed to the receiving mail recipient, so that it is possible to appropriately control the communication time and communication cost in the mail reception processing of the pay-as-you-go (public line network, ISDN) form. There is an effect that there is.

Further, the received mail condition setting file 19
According to the received mail condition described in (1), it is possible to omit the input of the received mail condition from the data input unit 12, so that the communication time and the communication cost at the time of receiving the mail can be further reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an electronic mail system according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the electronic mail system according to the first embodiment of the present invention.

FIG. 3 is a diagram showing conditions of received mail in the electronic mail system according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a specific example of the configuration and operation of the electronic mail system according to the first embodiment of the present invention.

FIG. 5 is a diagram showing instruction information 41 transmitted from an electronic mail client to an electronic mail server in the electronic mail system according to the first embodiment of the present invention.

FIG. 6 is a block diagram showing a configuration of an electronic mail system according to a second embodiment of the present invention.

FIG. 7 is a diagram showing conditions of received mail in the electronic mail system according to the second embodiment of the present invention.

FIG. 8 is a flowchart illustrating an operation of the electronic mail system according to the second embodiment of this invention.

FIG. 9 is a diagram showing a specific example of the configuration and operation of an electronic mail system according to a second embodiment of the present invention.

FIG. 10 is a diagram showing a recording medium and a computer on which a program for causing a computer to execute the electronic mail receiving method or the electronic mail distribution method of the present invention is recorded.

FIG. 11 is a block diagram showing an example of a conventional dial-up connection type e-mail service.

[Explanation of symbols]

 Reference Signs List 1 mail receiving terminal 2 mail server 3 communication network 10 setting file reading unit 12 data input unit 13 connection processing condition assembling unit 14 received mail condition assembling unit 15 connection processing unit 16 terminal data communication unit 17 received mail storage unit 18 received mail box 19 Incoming mail condition setting file 22 Server data communication unit 23 User authentication unit 24 Connection accepting unit 25 Received mail condition analyzing unit 26 E-mail extracting unit 27 Mail spool box 31 Email sender 41 Instruction information 60 Computer 61 Recording medium

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5B089 GA11 GA21 HA02 HA03 JA31 JB22 KA08 KA16 KC37 KC44 KC58 KG01 LA11 5K030 GA15 HA06 HC01 HC13 LA12 LD13 9A001 CC03 CC04 CC07 JJ14 JJ27 KK56 (54) Client, e-mail server, e-mail reception method, e-mail distribution method, e-mail system, recording medium recording e-mail reception processing program, recording medium recording e-mail distribution processing program

Claims (10)

[Claims] 1. An e-mail client for receiving an e-mail from an e-mail server through a dial-up connection, wherein the e-mail client transmits conditions of the received e-mail to the e-mail server. 2. An e-mail server connected to a network and dialed up from an e-mail client, receives from the e-mail client a condition of the e-mail to be transmitted to the e-mail client, and matches the condition. An e-mail server for retrieving an e-mail and transmitting the e-mail to the e-mail client. 3. An e-mail client for receiving an e-mail from an e-mail server through a dial-up connection, an input unit for inputting reception conditions of the e-mail to be received, and a reception mail condition for assembling the reception conditions from the input unit. An assembling unit, a connection condition assembling unit that assembles connection conditions for the dial-up connection, a connection processing unit that assembles the connection conditions and the reception conditions to create instruction data, and the instruction data from the connection processing unit. An e-mail client, comprising: a data communication unit that transmits to an e-mail server and receives the e-mail from the e-mail server; and a mailbox that stores the e-mail. 4. An e-mail server connected to a network and dialed up from an e-mail client, comprising: a mail spool box for storing e-mail addressed to the e-mail client; and a connection condition sent from the e-mail client. A user authentication unit that performs user authentication; a received mail condition analysis unit that analyzes reception conditions of the email received by the email client; and a mail extraction unit that searches and retrieves mail in the mail spool box based on the reception conditions And a data communication unit for transmitting the extracted mail to the electronic mail client. 5. An e-mail receiving method for receiving an e-mail from an e-mail server through a dial-up connection, wherein: a first step of inputting a reception condition of the e-mail to be received; and the reception condition from the first step. A second step of assembling, a third step of assembling connection conditions for the dial-up connection, a fourth step of assembling the connection conditions and the reception conditions to create instruction data, and from the fourth step A fifth step of transmitting the instruction data to the e-mail server, a sixth step of receiving the e-mail from the e-mail server, and a seventh step of storing the e-mail in a mailbox. E-mail receiving method characterized by the above-mentioned. 6. An e-mail distribution method for an e-mail server connected to a network, dialed up from an e-mail client, and having a mail spool box for storing e-mail addressed to the e-mail client, wherein: A first step of performing user authentication based on the received connection condition, a second step of analyzing a reception condition of the e-mail received by the e-mail client, and searching for a mail in the mail spool box based on the reception condition An e-mail delivery method, comprising: a third step of extracting and extracting; and a fourth step of transmitting the extracted mail to the e-mail client. 7. A recording medium on which an electronic mail reception processing program for causing a computer to execute the first to seventh steps according to claim 5 is recorded. 8. A recording medium on which an electronic mail distribution processing program for causing a computer to execute the first to fourth steps according to claim 6 is recorded. 9. An electronic mail system wherein the electronic mail server according to claim 2 or 4 is connected via a network. 10. The electronic mail client according to claim 1, wherein the electronic mail client is a dial-up line.
An e-mail system connected to the e-mail system described in the above.