KR20020024139A - Electronic mail(e-mail) processing system and electronic mail service method - Google Patents

Abstract

PURPOSE: An electronic mail processing system is provided to support access multi platforms, and to generate mail information structural files, then to process electronic mail by using the generated mail information structural files, so as to maintain an optimized system state for minimizing unaccessible states and speed delay as well as supplying an optimum electronic mail solution in a network system, server, and CGI(Common Gateway Interface). CONSTITUTION: An access multi platform(100) supports many access platforms, to smoothly connect a server or a client with an electronic mail processing system through a communication network. A main server(300) is composed of a protocol processor and a main engine. The protocol processor supports a transceive protocol of electronic mail. The mail engine supports a program based on multi-thread, and provides a service related to electronic mail to the server or the client connected through the access multi platform(100). If electronic mail is received, the mail engine previously generates data to be distributed on the Web to generate mail information structural files, and extracts a stored mail information structural file only while reading the electronic mail. A database(400) stores various data and program information related to the electronic mail processing system, and is composed of a database for storing the mail information structural files and a database for storing mail messages.

Description

E-mail processing system and e-mail service method {ELECTRONIC MAIL (E-MAIL) PROCESSING SYSTEM AND ELECTRONIC MAIL SERVICE METHOD}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic mail (E-mail) processing technology called e-mail, and is particularly suitable for network systems, servers, and common gateway interfaces (CGIs) that must handle large amounts of e-mail. It relates to an electronic mail processing system and an electronic mail service method for providing a related solution and processing and serving electronic mail using the same.

With the rapid increase in the number of Internet users and the rapid increase in the market scale since 1999, the Internet has a tremendous impact on society as a whole, including society, economy, and culture. In particular, the expansion of high-speed communication network and wireless Internet to general households has created a huge invisible market called the Internet, which has become the core foundation of the new economy such as the increase of venture companies, the promotion of electronic commerce, and the activation of the Internet advertising market. This expansion of the Internet infrastructure makes it possible to use high-quality and large-capacity content more quickly and easily, and it is clear for now that it will become the infrastructure for advanced living and industry creation in the future.

In addition, the Internet has made it possible for e-mails to be sent in real time instead of offline mail, which takes a long time to arrive in our lives. Users can now post stamps and put them in their mailboxes, rather than delivering them to the forwarders through the post office. Instead, they set up their own post offices in a virtual space to deliver personal messages in real time using e-mail, send business letters, advertise, It is free to promote and use voice mail, music mail, video mail, and the like that can send voices, music, and videos together by mail.

As the number of e-mail users increase, most portal sites provide e-mails to users in order to secure users or member subscribers, and most companies that operate sites on the web also E-mail is provided for remote contact and for the personal duties and tasks of members.

However, as the number of e-mail users increase, simultaneous users who want to use the server for providing web-based web mail and the server for providing POP # N (Post Office Protocol version N, now POP3 service) service using a mail client Congestion overloads such as server inaccessibility is becoming frequent, and speed delays have emerged as an important problem in using e-mail.

To this end, the administrators are preparing a large server environment in a hurry to deal with user inconveniences such as inaccessibility and speed delay due to congestion of concurrent users.

However, increasing server capacity indefinitely is not the only solution to the problem of using existing e-mail. The prerequisite for the existing e-mail problem is to maintain an optimized system state that can minimize inaccessibility or speed delay within the system environment of the existing e-mail server. First, it is necessary to relocate existing e-mail system resources or make new changes to make the state of the existing e-mail system optimized, and then shift the viewpoint to server capacity. This is a problem such as trying to make room wider when we have a lot of books cluttered in a room, and trying to make use of the current room space by arranging books on a bookshelf for space utilization.

If a solution is provided to solve the problem of the existing e-mail service by reconfiguring the system environment of the existing e-mail server, both system operators and users will be satisfied with the e-mail service.

Accordingly, an object of the present invention is to provide an e-mail system resource for maintaining an optimized system state that can minimize inaccessibility or speed delay in a system environment of an e-mail server, particularly a system environment that must handle a large amount of e-mail. Provides an optimal e-mail solution in the network system, server, and Common Gateway Interface (CGI) that supports e-mail by reconfiguring, and provides e-mail processing system and e-mail service method that processes and services e-mail using this Is in.

1 is a diagram illustrating a network environment including an electronic mail processing system according to a preferred embodiment of the present invention;

2 is a diagram showing the internal configuration of a mail server according to an embodiment of the present invention;

3 is a diagram illustrating a hierarchical configuration of a mail server according to an embodiment of the present invention;

4 is a diagram showing the configuration of a database for e-mail processing according to an embodiment of the present invention;

5 is a diagram illustrating information displayed on a user screen when reading a mail in a conventional e-mail;

6 is a diagram illustrating an example of a new received mail index structure stored in a mail information structure file database according to an embodiment of the present invention;

7 is a diagram illustrating a mail sending service in an electronic mail processing system according to an embodiment of the present invention;

8 is a diagram illustrating a mail reading service in an electronic mail processing system according to an embodiment of the present invention;

9 is a diagram illustrating a mail receiving service in an electronic mail processing system according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: client server 20: user1

30: User n 40: Internet or LAN

100: access multi platform 200: web service server

300: mail server 310: web

320: POP3 330: SMTP

350: mail engine 351: mail processing unit

353: mail information structure file generation unit

355: mail telegram structure file extraction unit

357: mail filtering processing unit

359: virus scan / treatment unit

400: database

410: mail information structure file database

411: New incoming mail index database

412: Full Incoming Mail Index Database

413: Outgoing mail index database

414: Deleted Mail Index Database

420: Mail Filtering Information Database

430: Virus Scan / Clean Database

440: user information database

450: message storage database

460: Attachment storage database

In order to solve the above object, an electronic mail processing system according to the first aspect of the present invention is:

A connection multi-platform supporting a plurality of access platforms so that a server or a client of a user environment can seamlessly access an e-mail processing system through a communication network such as the Internet, an intranet, or a LAN;

It supports a protocol processing unit that supports web, POP3 and SMTP connection and e-mail transmission and reception protocol, and a multi-threaded program, and provides services related to e-mail to a server or a client of a user environment connected through the access multi-platform. A mail server configured to generate a mail information structure file by generating data to be scattered from the web in advance when receiving a mail, and to extract only the stored mail information structure file when reading a mail; And

And a database for storing various data and program information related to the electronic mail processing system and including a database for storing the mail information structure file information and a database for storing mail contents.

In addition, the mail engine of the electronic mail processing system according to the second aspect of the present invention;

A mail processing unit in charge of all processes related to electronic mail processing and services by the mail engine;

Under the control of the mail processing unit, a mail information structure file generation unit generating the mail information structure file by extracting index data to be scattered on the web in advance when the user accesses and checks the e-mail from the received mail information when receiving the e-mail. Wow,

And a mail information structure file extracting unit for extracting mail index information from the mail information structure file stored separately when a mail reading is requested by a user request under the control of the mail processing unit.

In addition, the mail engine of the electronic mail processing system according to the third aspect of the present invention;

A mail filtering processing unit for filtering received e-mail when the new received mail includes information to be filtered under the control of the mail processing unit and includes information to be filtered;

Under the control of the mail processing unit, it is characterized in that it further comprises a virus inspection / treatment unit for inspecting and treating the virus infection of the e-mail and attached files when sending mail, receiving mail, reading mail.

In addition, the database of the electronic mail processing system according to the fourth aspect of the present invention;

A new received mail index database for storing index data of unread mails to be spread on the web among the mail information structure file data generated by the mail information structure file generation unit when reading mail by a user connection;

An entire received mail index database for storing the new received mail index data generated by the mail information structure file generating unit together with the read mail index data;

Outgoing mail index database which stores index data of outgoing mail,

Deleted mail index database which stores index data of deleted mail kept in trash folder,

A mail filtering information database for storing domains and URLs for which a user has requested to be blocked, domains and URLs registered by the administrator to unsubscribe, e-mail addresses, and spam mail information;

A virus scan / treatment database that stores an antivirus program, and stores various programs and data necessary for virus scan / treatment such as various types of viruses, their treatments, and virus treatment results;

A user information database for storing information of users;

A message storage database for storing message content information created by the user in incoming or outgoing e-mail;

And an attachment file storage database for storing the information and the content information of the attachment file attached to the electronic mail.

Further, the mail information structure file of the electronic mail processing system according to the fifth aspect of the present invention; It is characterized by consisting of sender information, recipient information, reference information, send date information, title information and attachment file name information structure.

In addition, the electronic mail processing system according to the sixth aspect of the present invention is characterized in that it is operated in connection with a web service server for providing a web service.

In addition, the e-mail service method for processing the e-mail service through the mail information structure file generated by the mail server according to the seventh aspect of the present invention:

A connection multi-platform support step of supporting a plurality of access platforms so that a server or a client of a user environment can seamlessly access the mail server through a communication network such as the Internet, an intranet, or a LAN;

Extracts only the index data to be scattered on the web by user access from the received mail information when a new mail is received, and creates a structure file for the mail information, and extracts only the index data of the mail sent when the mail is sent. A mail information structure file generation step of generating a structure file and separately managing a structure file for the received and sent mail information;

And a mail information structure file extracting step of first extracting only data managed by the mail information structure file and providing the user to the mail server when the user accesses the mail server.

Further, in the e-mail service method according to the eighth aspect of the present invention, the mail information structure file generated in the mail information structure file generation step includes a new mail index database, an entire received mail index database, and outgoing mail index data. It is characterized in that it is stored in the base and the deleted mail index database, respectively.

Further, in the electronic mail service method according to the ninth aspect of the present invention, new mail index data identified by a user in the generated mail information structure file is deleted from the new mail index database and is stored in the entire mail index database. It is characterized by being stored and managed.

In addition, the e-mail service method according to the tenth aspect of the present invention is:

A mail filtering step of checking whether the newly received e-mail includes information to be filtered and filtering the received e-mail when the information to be filtered is included; And

And a virus scan / processing step of inspecting and treating a virus infection of the e-mail and the attached file upon sending or receiving the mail or reading the mail.

In addition, in the e-mail service method according to the eleventh aspect of the present invention, the contents, user information, and attachments of the received and sent e-mails are stored and managed in a separate database, which is applicable only when there is a user request. Extracted from the database and provided to the user.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same reference numerals as much as possible even if they are displayed on different drawings. Detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted. Meanwhile, the electronic mail processing system and the electronic mail service method according to the present invention described below can be applied not only in the Internet environment but also in an environment using an intranet or a LAN.

1 is a diagram illustrating a network environment including an e-mail processing system according to a preferred embodiment of the present invention. The network environment including an e-mail processing system according to the present invention may be connected to the Internet, an intranet, or a LAN 40. Client server 10, user terminal (local PC, web PC, wireless Internet terminal, etc.) # 1 to N in a connectionable environment, access multi-platform 100, web service server 200, mail server 300 and the database 400. Here, a network environment including an e-mail system using the Internet among these network environments will be described.

When the client server 10 or the user terminals # 1 to N (20 or 30) are connected to the web through a dedicated line, a dial-up modem, an ISDN, or a mobile communication terminal, the access multi-platform 100 In order to access the web service server 200 or the mail server 300 through, the client server 10 or the user terminal # 1 ~ N (20 or 30) in order to access the mail server 300 You can use the Web, Simple Mail Transfer Protocol (SMTP), or Post Office Protocol version 3 (POP3) protocols.

In the access multi-platform 100, the client server 10 or the user terminals # 1 to N (20 or 30) may be smoothly connected to the web service server 200 or the mail server 300. It will support multiple access platforms for access.

The web service server 200 has a unique Uniform Resource Locator (URL) to which a client of a server or user environment can access, and is in charge of various services for a web service.

The mail server 300 is composed of an e-mail system according to the present invention, which is a service related to e-mail to a server or a client of a user environment connected through the access multi-platform 100 (Mail Sending), mail Provides services such as Mail Receiving and Mail Reading. The mail server 300 provides a multi-thread based program.

The database 400 stores various data and program information related to a web service and a mail service. For example, the configuration of the database related to the electronic mail in the database 400 is the same as that of FIG. 4. 4 is a diagram illustrating a configuration of a database for electronic mail processing according to a preferred embodiment of the present invention, and includes a new received mail index database 411, a full received mail index database 412, and an outgoing mail index data. A mail information structure file database 410 consisting of a base 413 and a deleted mail index database 414, a mail filtering information database 420, a virus scan / repair database 430, and user information data The base 440 includes a message storing database 450 and an attached file storing database 460.

The new received mail index database 411 is used for index data (eg, sender information M1, recipient information M2, reference information) of unread mail to be spread on the web as shown in the example of FIG. M3, sent date information M4, title information M5, and attached file name information M6).

The all received mail index database 412 stores the new received mail index data together with the read mail index data.

The outgoing mail index database 413 stores index data of outgoing mail.

The deleted mail index database 414 stores index data of deleted mail stored in a folder of the trash.

The mail filtering information database 420 stores domains and URLs for which the user has requested to be rejected, domains and URLs registered by the administrator as rejection, e-mail addresses, and spam mail information.

The virus test / treatment database 430 stores an antivirus program, and stores various programs and data necessary for virus test / treatment such as various types of viruses, their treatment items, and virus treatment results.

The user information database 440 stores information of users.

The message storage database 450 stores message content information created by a user among incoming or outgoing e-mails.

The attachment file storage database 460 stores information and content information of an attachment file attached to an e-mail.

In addition, the database 400 stores various data and source programs related to the web service.

In the network environment as described above, the clients 10 to 30 of the server and the user environment may use the mail server 300 through the plurality of access platforms 100 to receive the [send mail], [receive mail], and [read mail] services. ), You can write a mail and send it to the person you want to send, or you can check and read the mail you received.

Such an internal configuration of the mail server 300 will be described in detail with reference to FIG. 2. 2 is a diagram illustrating an internal configuration of a mail server according to an exemplary embodiment of the present invention. The mail server 300 according to an exemplary embodiment of the present invention includes a web 310, a POP3 320, and an SMTP 330. And a mail engine 350, wherein the mail engine 350 again includes a mail processor 351, a mail information structure file generator 353, a mail information structure file extractor 355, and a mail filtering processor 357. ), At least a virus inspection / treatment unit 359.

The web 310, the POP3 320, and the SMTP 330 support a protocol processing unit for transmitting and receiving a web connection and an e-mail.

The mail engine 350 is an engine for electronic mail processing according to the present invention. The mail engine 350 generates data to be scattered from the web in advance and stores the data in a separate database. Extract data (M1 to M6 in FIG. 5 and FIG. 6) previously to be scattered on the web by the user access in advance to generate a mail information structure file, and only the corresponding data are separately stored in the corresponding area in the database 400. It saves the processing time by extracting only the saved mail information structure file and spreading it on the web. In addition, the mail engine 350 includes a mail filtering processing unit 357 for filtering a blocked domain, an address, spam mail, and the like, and a virus scan / repair for checking / repairing a virus or the attachment of the mail or the mail. A portion 359 is included.

The configuration of the mail engine 350 will be described in more detail;

The mail processing unit 351 is in charge of all processes related to electronic mail processing and services by the mail engine 350.

The mail information structure file generation unit 353 may generate data (index data) to be scattered on the web when the user accesses and checks the e-mail from the received e-mail information under the control of the e-mail processing unit 351. For example, the extracted message is generated in advance in a message attachment dual image (MADI) structure and stored in the new received mail index database 411 of the mail information structure file database 410.

The mail information structure file extracting unit 355 stores the mail index information stored in the mail information structure file database 410 according to a user's request under the control of the mail processing unit 351. Extract through.

The mail filtering processing unit 357 checks whether the information to be filtered from the mail filtering information database 420 is included when receiving a new mail under the control of the mail processing unit 351 and receives the information to be filtered. Filtered e-mail.

The virus inspection / treatment unit 359 reads out information necessary for virus inspection / treatment from the virus inspection / treatment database 430 when sending mail, receiving mail, or reading mail under the control of the mail processing unit 351. The mail and attachments will be scanned for viruses and repaired.

3 is a diagram illustrating a hierarchical configuration of a mail server according to an exemplary embodiment of the present invention, in which a web to be connected to a user, POP3 and SMTP, and SMTP to be connected to a server are mounted on a mail engine.

FIG. 5 is a diagram illustrating information displayed on a user screen as data to be scattered on the web when reading a mail in a typical e-mail, among which sender information M1, recipient information M2, reference information M3, and sent date. Information M4, title information M5, and attached file name information M6 are used when generating the mail information structure file.

Therefore, even if a plurality of users access and read new mail or read read mail again, the mail engine 350 does not search all the received e-mail contents and sprinkle the corresponding contents on the web. The processing time can be shortened by searching only the contents of the index data stored in the structure file database 410 and spraying the contents on the web.

A method of performing a mail sending service, a mail reading service, and a mail receiving service in an electronic mail processing system according to a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 6.

First, FIG. 7 is a diagram illustrating a mail sending service 600 in an electronic mail processing system according to a preferred embodiment of the present invention.

The mail sending service 600 is largely performed in five steps from the access to the end of sending the mail. First, in step 601, the mail processing unit 531 allows the user 20 or 30 to support the access multi-platform 100. When accessing the mail server 300, a normal user authentication process is performed in step 603. If the user authentication is normally completed, the mail processing unit 531 reprocesses the mail (recipient, reference, contents, attachment, etc.) completed by the user in accordance with the format of the transmission mail in step 605. At this time, if there is an attachment attached to the mail, the virus is scanned, and if there is a virus infected file, it is repaired.

In step 607, the mail processing unit 531 sends the mail. At this time, DNS (Domain Name System) internal coding operation is performed, and in order to reduce input / output (I / O) time of a file, an outgoing mail index is created and stored in the outgoing mail index database 413 to send mail. End in step.

Next, a mail reading method will be described with reference to the flowchart of FIG. 8; FIG. 8 is a diagram illustrating a mail reading service 700 in an electronic mail processing system according to an exemplary embodiment of the present invention. In the mail reading service 700, the mail processing unit 351 is a user (or a member). After the user accesses the mail server 300 and authenticates the member, and selects reading a new mail, the process proceeds to step 703 to check whether there is a new mail from the mail information structure file database 411 and to read the unread new mail. If it exists, the operation proceeds to step 705, and if it does not exist, the operation proceeds to step 715.

In step 705, the mail processing unit 351 controls the mail information structure file extracting unit 355 to store the unread message in the new received mail index database 411 of the mail information structure file database 410. In step 707, the index structure file for the new mail information is extracted and data is provided for the user to read the list. This is shown in FIG. 6 as an example.

Then, in step 709, the mail processing unit 351 provides the contents of the letter list selected by the user to read the letter. In step 709, the new mail confirmed by the user is changed to the confirmation mail information, thereby changing the index structure file from the new received mail information to all received mail information.

On the other hand, in step 713, the mail processing unit 351 confirms all new mails by the user and proceeds to step 715 if the new mail check is completed, otherwise returns to step 703.

In step 715, the mail processing unit 351 controls the mail information structure file extracting unit 355 by inspecting all mails, and in step 717, all mails stored in the all received mail index database 412. In step 719, the index structure file for the information is extracted and the data is provided so that the user can read the list of the entire reception list.

Thereafter, in step 721, the mail processing unit 351 provides the contents of the mail list selected by the user. When the user selects the end of the mail reading or switches to another function, the mail processing unit 351 ends the reading of the mail in step 723.

Next, a mail receiving method will be described through the flowchart of FIG. 9; FIG. 9 is a diagram illustrating a mail reception service in an electronic mail processing system according to an embodiment of the present invention. The mail reception 800 service is first performed in step 820 for easy access in step 801. ).

When the mail processing unit 351 receives the mail through another server in step 803 through the access multi-platform 100 supported as described above, in step 805 the DNS decoding is performed. The mail processing unit 351 reprocesses the received message in step 807. First, in step 830, the mail processing unit 351 controls the mail filtering processing unit 357 to filter the mail when a new mail is received. It checks whether the information to be filtered from the information database 420 is included and filters the received e-mail when the information to be filtered is included. In operation 840, the mail processing unit 351 controls the virus inspection / treatment unit 359 to read and receive information necessary for virus inspection / treatment from the virus inspection / treatment database 430 when the mail is received. E-mails and attachments are scanned for viruses and repaired. In operation 850, the mail processing unit 351 controls the mail information structure file generation unit 353 so that when the user accesses and checks the e-mail from the mail information received when the mail is received, the data to be scattered on the web ( Index data) is extracted in advance. For example, the mail information structure file generation unit 353 extracts data to be managed as a mail information structure file from the received mail as in the example of FIG. 6 and generates a message append dual image (MADI) structure.

Then, the mail processing unit 351 stores the mail information structure file generated in step 809 in the new received mail index database 411 of the mail information structure file database 410, and the message contents are stored in the message storage database. In step 450, the attachment is stored in the attachment file storage database 460, and the mail reception is terminated in step 811.

On the other hand, in the detailed description of the present invention has been described with reference to specific embodiments, of course, various modifications are possible without departing from the scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention is optimized to support connection multi-platform, generate a mail information structure file, and process the e-mail using the same to minimize the inability or speed delay in the system environment of the e-mail server. This has the advantage of maintaining system state. Accordingly, the present invention provides an optimal e-mail related solution in a network system, a server, and a Common Gateway Interface (CGI) supporting e-mail by reconfiguring e-mail system resources, and use the same to smoothly process and service e-mail. There is an advantage to this.

Claims (11)

In an email processing system: A connection multi-platform supporting a plurality of access platforms so that a server or a client of a user environment can seamlessly access an e-mail processing system through a communication network such as the Internet, an intranet, or a LAN; It supports a protocol processing unit that supports web, POP3 and SMTP connection and e-mail transmission and reception protocol, and a multi-threaded program, and provides services related to e-mail to a server or a client of a user environment connected through the access multi-platform. A mail server configured to generate a mail information structure file by generating data to be scattered from the web in advance when receiving a mail, and to extract only the stored mail information structure file when reading a mail; And And a database for storing various data and program information related to the electronic mail processing system and including a database for storing the mail information structure file information and a database for storing mail contents. Processing system. The method of claim 1, wherein the mail engine; A mail processing unit in charge of all processes related to electronic mail processing and services by the mail engine; Under the control of the mail processing unit, a mail information structure file generation unit generating the mail information structure file by extracting index data to be scattered on the web in advance when the user accesses and checks the e-mail from the received mail information when receiving the e-mail. Wow, And a mail information structure file extracting unit for extracting mail index information from the mail information structure file stored separately when a mail reading is requested by a user request under the control of the mail processing unit. The system of claim 2, wherein the mail engine; A mail filtering processing unit for filtering received e-mail when the new received mail includes information to be filtered under the control of the mail processing unit and includes information to be filtered; Under the control of the mail processing unit, the e-mail processing system characterized in that it further comprises a virus inspection / treatment unit for checking the virus infection of the e-mail and attached files when sending mail, receiving mail, reading mail. The method of claim 3, wherein the database; A new received mail index database for storing index data of unread mails to be spread on the web among the mail information structure file data generated by the mail information structure file generation unit when reading mail by a user connection; An entire received mail index database for storing the new received mail index data generated by the mail information structure file generating unit together with the read mail index data; Outgoing mail index database which stores index data of outgoing mail, Deleted mail index database which stores index data of deleted mail kept in trash folder, A mail filtering information database for storing domains and URLs for which a user has requested to be blocked, domains and URLs registered by the administrator to unsubscribe, e-mail addresses, and spam mail information; A virus scan / treatment database that stores an antivirus program, and stores various programs and data necessary for virus scan / treatment such as various types of viruses, their treatments, and virus treatment results; A user information database for storing information of users; A message storage database for storing message content information created by the user in incoming or outgoing e-mail; And an attachment file storage database for storing information and content information of attachments attached to the e-mail. The method of claim 4, wherein the mail information structure file; An e-mail processing system comprising a structure of sender information, recipient information, reference information, send date information, subject information, and attachment file name information. The method of claim 5, The e-mail processing system is operated in connection with a web service server for providing a web service. An email service method for processing an email service through a mail information structure file generated by a mail server: A connection multi-platform support step of supporting a plurality of access platforms so that a server or a client of a user environment can seamlessly access the mail server through a communication network such as the Internet, an intranet, or a LAN; Extracts only the index data to be scattered on the web by user access from the received mail information when a new mail is received, and creates a structure file for the mail information, and extracts only the index data of the mail sent when the mail is sent. A mail information structure file generation step of generating a structure file and separately managing a structure file for the received and sent mail information; And a mail information structure file extracting step of first extracting only data managed by the mail information structure file and providing the same to the user when the user accesses the mail server. 8. The mail information structure file of claim 7, wherein the mail information structure file generated in the mail information structure file generating step comprises a new mail index database, an entire received mail index database, an outgoing mail index database, and a deleted mail index database, respectively. E-mail service method characterized in that the stored. The e-mail service of claim 8, wherein new mail index data identified by a user in the generated mail information structure file is deleted from the new mail index database and stored and managed in the entire mail index database. Way. 8. The method of claim 7, wherein the email service method is: A mail filtering step of checking whether the newly received e-mail includes information to be filtered and filtering the received e-mail when the information to be filtered is included; And And a virus scan / processing step of inspecting and treating a virus infection of an e-mail and an attached file when sending or receiving an e-mail or reading a mail. The method of claim 10, The contents, user information, and attachments of the received and sent e-mails are stored and managed in a separate database, and are extracted from the database and provided to the user only when there is a user's request. .