CN1250288A - Processing method and device for e-mail data synchronization - Google Patents

Abstract

A processing method and device for email data synchronization. Before proceeding the synchronization process, the related module of event process must be used to establish the tag database or update the tag database. Each tag data is used to record a synchronization message corresponding to the e-mail data. When two user end devices are connected and the user issues synchronous command, the current mark database is read out for comparison to find out all mark data corresponding to different E-mail data. And then, exchanging the e-mail data by using the compared result so as to update the electronic database and the mark database and finish the synchronous processing of the e-mail.

Description

Processing method and device for e-mail data synchronization

The invention relates to a processing method and device for email data synchronization, in particular to a processing method and device for synchronizing user emails scattered on various terminal devices.

Currently, the e-mail operation structure generally adopted in the Internet is mainly implemented in a client/server manner. Specifically, a mail server (mailserver) is provided on the network, and an email mailbox corresponding to each user (client) is set. When an e-mail arrives, it will be sent to the corresponding e-mail box for storage. When the user (client) connects to the mail server and requests to check the contents of the e-mail box, the mail server will read the content of the e-mail box and send it to the client.

In general email protocols, when email data is transferred from the mail server to the client, the transferred email data in the mail server will be deleted, that is, the email data will no longer be retained. However, some mail systems will keep all emails in the server, such as CC-mail. This system that keeps all email data in the server has a serious problem, that is, after long-term use, a considerable amount of email data will accumulate in the server. Whenever a user requests to download email data, it will take a lot of time to check or download many duplicate email data, thus reducing the efficiency of the network.

However, in the end, the email data will still be sent to the client's device. However, the work of modern people is often carried out on different terminal devices. For example, a user may work on a PC in the company during the day, but at night on a computer at home, and a portable notebook or handheld PC when traveling. FIG. 1 shows a schematic diagram of the structure of this working mode. Users may access the e-mails in one or several e-mail boxes on the mail server 4 through different terminal devices, such as office computer 1 , home computer 2 and portable computer 3 . That is to say, various email data may be scattered in different terminal devices. Furthermore, even if the work is performed on the same terminal device, email data may be scattered in different folders corresponding to each email software due to the use of different email software. Therefore, due to the dispersion of e-mail data, users often have to use different terminal equipment and different e-mail software to access different e-mail data, and it is also difficult to share all e-mail data sent and received.

In short, the current e-mail system has data synchronization problems. For an email system (such as CC-mail) that keeps all email data in the mail server, the accumulated data is very large, and at the same time, a considerable amount of time must be wasted when the user end loads the email data for processing , reducing the efficiency of network usage. For the e-mail system (such as SMTP) where the e-mail server deletes the e-mail after sending it, the e-mail data may be scattered in different terminal devices and different folders, which increases the difficulty of data integration.

In view of this, the main purpose of the present invention is to provide a processing method and device for e-mail data synchronization, which can synchronize e-mail data scattered in different terminal devices and different data folders, that is, integrate all e-mail data The data is in the same terminal device and archive for further processing.

Another object of the present invention is to provide a processing method and device for e-mail data synchronization, which can reduce the processing time when downloading data between the mail server and the client for the system that retains all mail data in the mail server, so that Improve network efficiency.

According to the above purpose, the present invention proposes a processing method for email data synchronization, which is used to synchronize multiple email data stored in the first device and the second device, which includes the following steps. Firstly, a first mark database and a second mark database are respectively established in the above-mentioned first device and the above-mentioned second device, and the above-mentioned first mark data database is used to record mark data corresponding to the e-mail data stored in the above-mentioned first device, The second tag database is used to record tag data corresponding to the email data stored in the second device. Then read the above-mentioned first tag database and the above-mentioned second tag library database. Next, according to the above-mentioned first tag database and the above-mentioned second tag database, it is used to search for all email data corresponding to the tag data recorded in the above-mentioned first tag database and the above-mentioned second tag database. Then, according to the search results, at least one of the first device and the second device is set as a synchronous result storage device to store all the searched email data. Finally, the tag database in the synchronization result storage device is updated.

In addition, the step of establishing the tag database is completed by storing the corresponding tag data in the tag database when sending and receiving emails. In addition, the above-mentioned tag data is at least composed of identification data, location data and time data, the above-mentioned identification data is used to identify the corresponding email data, the above-mentioned location data is used to define the storage location of the corresponding email data, and the above-mentioned time data is used for to define when the corresponding email data was last updated. Therefore, according to the identification data in the above-mentioned mark data, it is possible to judge the repeated email data stored in the above-mentioned first device and the above-mentioned second device, so as to search out the email data in the above-mentioned first mark data and the above-mentioned second mark data. All e-mail data corresponding to the marked data recorded in , and according to the time data in the above marked data, the latest version of the e-mail data is used; and according to the position data in the above marked data, the reading of the e-mail data can be determined Location.

On the other hand, the present invention also provides an e-mail data synchronization processing device for synchronizing e-mails with an external e-mail data synchronization processing device, which includes: an activation module for receiving a user's synchronization Command; an email database with a plurality of email data; a tag database with a plurality of tag data corresponding to the email data; a communication module coupled to the startup module and receiving the synchronization command , used to connect with the external e-mail data synchronization processing device, a marking times control module, coupled to the above-mentioned communication module and the above-mentioned mark database, which corresponds to the above-mentioned synchronization command, reads the above-mentioned mark data of the above-mentioned mark database and Obtain the tag data of the above-mentioned external e-mail data synchronization processing device through the above-mentioned communication module, compare and search out all the tag data corresponding to different e-mail data; and a mail data control module, coupled to the above-mentioned communication module group, the above-mentioned mark data control module, the above-mentioned mark database and the above-mentioned e-mail database, according to the search result obtained by the above-mentioned mark data control module, read the e-mail data of the above-mentioned external e-mail data synchronization processing device through the above-mentioned communication module , which updates the email database above and the tag database above.

In addition, an event device module is also included, which is used to set at least one specific event in a mail management program, and the specific event corresponds to the processing action of the above-mentioned mail management program on the above-mentioned email database. When the above-mentioned specific event occurs, The above-mentioned mail management program sends an event notification; an event monitoring module for receiving the above-mentioned event notification; and an event registration module for corresponding to the above-mentioned tag database according to the above-mentioned event monitoring module received and the above-mentioned event notification correction. Thereby, a tag database is established and maintained.

In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and understandable, a preferred embodiment is specially cited below, and in conjunction with the accompanying drawings, the detailed description is as follows:

FIG. 1 shows a schematic block diagram of a general mail server in use.

FIG. 2 shows a block diagram of the hardware structure when the client device sends and receives emails through the mail server in the embodiment of the present invention.

FIG. 3 shows a data flow diagram when the client device sends and receives e-mail through the mail server in the embodiment of the present invention.

Fig. 4 shows a schematic diagram of the structure of the tag database in the embodiment of the present invention.

FIG. 5 shows a block diagram of a hardware structure when two client devices synchronize email data in an embodiment of the present invention.

FIG. 6 shows a data flow diagram when two client devices synchronize email data in an embodiment of the present invention.

FIG. 7 shows a simplified flow chart of the embodiment of the present invention when synchronizing email data.

The e-mail data synchronous processing method of the present invention can be divided into two stages, the first stage is processing when sending and receiving e-mails generally, and its purpose is to establish a tag database (tagdatabase) corresponding to e-mail data. The tag database is used to store relevant information corresponding to each email data during data synchronization. The second phase is the actual synchronous exchange of e-mail data based on the tag database established on each client device. In the following embodiments, descriptions are mainly made on data synchronization between user end devices. But for the situation between the client device and the mail server, the following examples also apply.

FIG. 2 shows a block diagram of the hardware structure when the client device sends and receives emails through the mail server in this embodiment. As shown in the figure, the client device 10 is connected to the mail server 4 through the modem 9 to send and receive e-mails. The client equipment 10 and the modem 9 are generally connected through serial, parallel and PCMCIA interfaces. The information exchange between the modem 9 and the mail server 4 is carried out through the public service telephone network (PSTN). The role of the modem 9 is to convert the digital data into analog form for transmission over the PSTN. However, when the client device 10 is directly connected to the mail server 4 through a wide area network or the Internet (Internet), the modem 9 may not be needed, but an appropriate adapter (adaptor) is used for connection.

The client device 10 in this embodiment, whether it is a desktop computer, a notebook computer or a personal digital assistant, all includes the components shown in Figure 2: a central processing unit 100, a communication circuit 101, an input device 102 (such as a keyboard), an output device 103 (such as a display), a storage device 104 (such as a hard disk or flash memory), and a main memory 105 (Dynamic Random Access Memory, DRAM). In the process of sending and receiving e-mails, the central processing unit 100 is responsible for controlling the e-mail receiving engine, and actually responsible for establishing and managing the corresponding tag database. The communication circuit 101 is in charge of the communication control of the modem 9 . The input device 102 is for the user to give instructions to receive or send emails. The output device 103 is used for displaying user interface and sending and receiving messages of emails. The storage device 104 is used to store transmitted and received email data and tag data (tag database) corresponding to each email. The main memory 105 is a memory device used for actual e-mail transmission and reception. The following describes how the hardware in FIG. 2 establishes and maintains its corresponding tag database for the cases of sending emails and receiving emails respectively.

When the user inputs an instruction to send an email through the input device 102 , the central processing unit 100 will load the email stored in the storage device 104 into the main memory 105 and then send it to the communication electronics 13 . The modem 9 converts the email data provided by the communication circuit 101 into an analog signal, and sends it to the mail server 4 for transmission. After the modem 9 responds to the information sent normally, the central processing unit 100 will store the required information (marker data) in the synchronous processing on the storage device 104, thereby establishing a record of the e-mail just sent Information for synchronous processing.

On the other hand, when the user inputs an instruction to receive emails through the input device 14 , the central processing unit 100 will transmit the instruction to receive emails to the communication circuit 101 , and then to the mail server 4 through the modem 9 . At this moment, the system must wait for the response from the mail server 4 . When the mail server 4 transmits back the electronic documents received by the user in its electronic letter, the central processing unit 100 temporarily stores these electronic mail data in the main memory 105 through the modem 9 and the communication circuit 101 . After checking, the central processing unit 100 stores the email data in the storage device 104 . After successfully completing all mail receiving steps, the central processing unit 100 will store the information (mark data) required for synchronous processing in each e-mail data on the storage device 104, thereby establishing a record of just received Synchronization information recorded by email. Therefore, corresponding to each received email and sent email, the system will record its corresponding tag data for use in email synchronization between different client devices.

The above is a description of the procedure for creating the tag database in this embodiment from the hardware point of view. Referring to FIG. 3 , how to implement the method for establishing a tag database will be described in detail below. FIG. 3 shows a data flow diagram when the client device sends and receives emails through the mail server in this embodiment. The data flow diagram shown in FIG. 3 is divided into two parts, namely, the mail server 4 and the client device 10 , which correspond to the same marked parts in FIG. 2 . In addition, in each module and data shown in FIG. The mail database 120 is an essential part generally used for e-mail sending and receiving operations. The mailbox 400 is the storage area where the mail server 4 stores the user's email, and the mail management module 112 is an application program module responsible for allowing the user to manage email on the client side, such as Eudora(tm), Netscape mailbox, etc. . The user can issue an instruction to send or receive email through the email management module 112 , and exchange messages between the email database 120 and the mailbox 400 through the data transmission between the message transfer agent modules 110 and 401 . Data stored in the email database 120 may be in encrypted form to increase its confidentiality. As for the event (event) setting module 113, the event monitoring module 114, and the event registration module 115, they are added in this embodiment, and their purpose is to establish and maintain the tag database 130.

The event setting module 113, the event monitoring module 114 and the event registration module 115 are a part of the email ADS (dynamic data synchronization) module group in the present embodiment, and mainly act when the user sends and receives emails , so that when each incoming or outgoing email 112 (email application program) is activated, the above three modules must be activated together.

To make the event setting module 113, the event monitoring module 114 and the event registration module 115 start together when the mail management module 112 is started, a service can be registered (register) in the registration database in the general system earlier, namely The e-mail ADS module group including at least the above three modules, and its startup type is set to start when other specific service programs are requested. Then set these specific service orders as all email application programs in the system, when starting the mail management module 112 in Fig. 3, start the event setting module 113, event monitoring module 114 and Event registration module 115 . Another advantage of the above approach is that no matter what email application is used to send and receive emails, they can all be recorded in the same token database 130 .

After being activated, the activated event setting module 113 will first register the events to be notified in the mail management module 112 . In this embodiment, the registered notification events may include: sending out emails by the client, receiving emails by the client, modifying certain email data in the mail management module 112, and so on. In addition, the event monitoring module 114 is the object to be notified when registering the notification event.

At this point, the user can manage and maintain emails through the email management module 112 . Until the mail management module 112 finds any event that needs to be notified, it will notify the event monitoring module 114 with an event occurrence message. The event monitoring module 114 then allows the event registration module 15 to register the event so as to create tag data corresponding to the event in the tag database 130 . The above-mentioned processing will continue until the mail management module 112 ends, so as to write all related tagged messages into the tagged database 130 .

FIG. 4 is a schematic diagram showing the structure of the mark database 130 in this embodiment, that is, the relevant data for synchronization processing contained in each mark data. As shown in the figure, each mark data includes the following items of data: email code 130a, sending address 130b, receiving address 130c, email subject name 130d, email sending and receiving time 130e, email storage location 130f, email modification time 130g and mail status data 130h. Wherein the email code 130a is used to record the code of each email in the tag database 130 .

The sender address 130b, receiver address 130c, mail subject name 130d and mail sending and receiving time 130e are used as identification data of the email. Because general email data can be distributed on different devices of the user end, the uniqueness of email must be guaranteed when recording each email data. Four variables have been used in the tag database 130 to mark the email data, i.e. the sender email address (post address 130b) of this email, the object (receiver address 130c) to be sent by this email, The data (mail subject name 130d) in the subject field of the email, and the date/time (mail sending and receiving time 130e) when the email is received or sent out at the client end are used to identify a single email.

The mail storage location 130f is used to indicate the storage location of the email data corresponding to the tag data, that is, in the data folder in the client device. The email modification time 130g is used to record the time when the email data was last modified, and this information can be used to find the latest one among different versions. The mail status data 130h is other information used to indicate the email data. In the present embodiment, the mail status data 130h defines four states altogether, that is, Clear-Shared means that the email data has been Synchronized), Dirty-Shared (indicates that this email data needs to be synchronized, that is, it is new or has been modified after synchronization), Deleted (Deleted) (indicates that this E-mail data is deleted) and Exclusive (indicating that this e-mail data is encrypted).

The functions of the above-mentioned information in the tag data in synchronous processing can be briefly described as follows. When the system is to perform synchronization, the uniqueness of the e-mail can be determined by the identification data of the sender address 130b, receiver address 130c, mail subject name 130d, and mail sending and receiving time 130e, so as to avoid duplicate records. But when the identification data of the two emails are the same, the latest version must be determined according to the email modification time 130g and the email status data 130h. When sending emails, the corresponding email data is retrieved according to the email storage location 130f.

Although the above description takes a single client device as an example, the same situation can be applied to different client devices. That is to say, when users use different client devices to send and receive emails, they can create individual tag databases on different devices. In the following, this embodiment will describe how to use these tag databases to achieve the purpose of e-mail data synchronization.

FIG. 5 shows a block diagram of the hardware structure when two client devices perform email data synchronization processing in this embodiment. As shown in the figure, the client device 10 and the client device 20 are connected to perform email data synchronization. As mentioned above, the client device 10 includes a central processing unit 100 , a communication circuit 101 , an input device 102 , an output device 103 , a storage device 104 and a main memory 105 . In addition, the client device 20 also includes a central processing unit 200 , a communication circuit 201 , an input device 202 , an output device 203 , a storage device 204 and a main memory 205 . The part connected between the two is the communication circuit 101 and 201, which can be realized by parallel port, serial port or infrared communication, and the actual connection network can also be a wide area network or a local area network. In the following description, it is assumed that the user is to issue an instruction for email data synchronization from the client device 20, and the email data in the client devices 10 and 20 will be updated together to achieve consistent (synchronized) email data. Purpose. For example, the client device 10 may be a computer in an office or a desktop computer at home, and the client device 20 may be a portable notebook computer or a personal digital assistant. However, even using a desktop computer to issue a synchronization command, or concentrating all email data on a desktop computer or a personal digital assistant, is also consistent with the spirit of the present invention.

The hardware operation at the time of e-mail data synchronization processing is described below. At this time, the tag databases of the client devices 10 and 20 and their corresponding email databases are stored in the storage devices 104 and 204 respectively. When the client device 20 sends an email data synchronization command, that is, after the user issues a synchronization command through the input device 202 , the central processing unit 200 transmits the command to the client device 10 through the communication circuits 201 and 101 . After the central processing unit 100 of the client device 10 receives the synchronization command, it reads out the tag database (corresponding to the client device 10 ) in the storage device 104 and transmits it to the client device 20 . When the central processing unit 200 receives the transmitted tag database (corresponding to the client device 10), it will first store it in the memory 205, and then read out the tag database (corresponding to the client device 10) from its own storage device 204. The client device 20) is also stored in the main memory 205, and finally compares the two tag databases.

In the above processing process, the client device 20 is mainly used as a device for comparing tag data, so all tag databases are sent to the client device 20 . However, the means for comparing the marked data can also be provided on the client device 10 . In other words, when the client device 20 issues a synchronization command, it also sends its corresponding tag database to the client device 10; then the client device 10 stores the transferred tag database and its own tag database in the main storage together. 105, ready for comparison. The following description still takes the UE 20 as a device for comparison.

After the comparison, the central processing unit 200 of the client device 20 can determine all currently stored email data at both ends according to the relevant information therein. Then, first update the tag database stored in the main memory 205, and then send an email transfer instruction according to the updated tag database, so that the client device 10 and the client device 20 can transmit email data, so as to update both ends Email database within. Here, the case of synchronously updating data at both ends is used for illustration, but in actual application, one of the client devices may also be designated to centralize all updated data. After completing the update processing of the e-mail databases at both ends, the tag databases temporarily stored in the main memory 205 are used to update the tag databases of the two client devices, that is, the synchronization process is completed. At this point, both the client devices 10 and 20 store the updated email database and tag database.

The above is a description of the procedure of the present embodiment when performing e-mail synchronization processing from the point of view of software. Referring to FIG. 6 , how to implement the email synchronization method will be described in detail below. FIG. 6 shows a data flow diagram when the client devices 10 and 20 perform e-mail data synchronization in this embodiment. As shown in the figure, when performing email synchronization processing, the email ADS module group includes four parts, which are respectively the ADS initiation module (270, only marked in the client device 20 in FIG. 6 ), Communication modules (240, 140), mail data control modules (250, 150) and tag data control modules (260, 160). In other words, the ADS start module, communication module, mail data control module and tag data control module in Fig. 6 and the event setting module, event monitoring module and event registration module in Fig. 3 constitute the present implementation The complete email ADS module group in the example.

The functions of the above four modules are described below. The ADS starting module 270 is a program used to start the entire email synchronization process, and it issues an instruction to start the synchronization process program according to the instructions of the user 7 . The communication module ( 240 , 140 ) is responsible for program control and communication of synchronization commands, email data and tag data between the client devices 10 and 20 during the synchronization process. The mail data control module (250, 150) is used for reading and updating the email database 220. The tag data control module (260, 160) is then used to control the reading of the tag database 230. In addition, the tag data control module 260 must also be responsible for the comparison of the tag database 130 and 230, and according to the comparison result, Control the actions of related modules to synchronize email data. Hereinafter, according to FIG. 6 , how to use the data of the tag database to achieve the purpose of data synchronization in this embodiment will be described in detail.

After the client devices 10 and 20 are properly connected by hardware, the user 7 first issues an ADS activation command on the client device 20 . The ADS start module 270 will then notify the communication module 240 of this relevant message after receiving the ADS start command, such as the e-mail database and the tag database after the synchronous update must be stored in the client device (this implementation In the example, the synchronously updated data is stored on two client devices at the same time). The communication module 240 then transmits the synchronization command to the communication module 140 of the client device 10 and requires it to send the data in the tag database 130 therein.

In the client device 10 , when the communication module 140 receives the synchronization command, it reads out the tag database 130 through the tag data control module 160 . The tag database 130 is sent to the tag data control module 260 through the communication modules 140 and 240 . On the other hand, the communication module 240 also requires the tag data control module 260 to read the tag database 230 in the client device 20 . At this point, the tag databases 130 and 230 are reserved in the tag data control module 260, ready to compare the two.

Referring to the aforementioned tag database structure ( FIG. 4 ), the following describes the comparison actions in the tag data control module 260 . With reference to Fig. 4, identification data (being sender's address 130b, receiving address 130c, mail subject name 130 and mail sending and receiving time 130e), storage data (being mail storage location 130f) and time data) have been included in each mark data) That is, the mail modification time 130g). The purpose of comparing the two tag databases is to find out all email data stored in the client devices 10 and 20 . Therefore, the tag data control module 260 firstly determines all corresponding email data according to the identification data in each tag data. When two or less marked data points to the same e-mail data, it means that the e-mail may be repeated or that the e-mail has been received (or sent) and then corrected. This part can be determined using the mail correction time 130g. In this embodiment, no matter whether it is repetition or revision, only the most recently corrected piece of email data is selected. Thus, the marked data control module 260 removes the repeated marked data in the marked databases 130 and 230, and for the e-mail data indicating different versions, the marked data corresponding to the newer version is taken, and a new marked database ( not shown).

Then the marked data control module 260 sends the compared results to the mail data control module 150 of the client device 10 (through the communication modules 240, 140) and the mail data control module 250 of the client device 20 respectively. According to the newly synchronized updated tag database, the mail data control modules 250 and 150 can use the mail storage location 130f to exchange part of the email data so as to update the email databases 120 and 220 . After the updating of the email is completed, then the tag databases 130 and 230 are updated synchronously. At this point, the email synchronization process is completed.

FIG. 7 shows a simplified flow chart of the embodiment of the present invention when synchronizing email data. Before synchronous processing, related modules of event processing (ie, event device module 113, event monitoring module 114, event registration module 115) must be used to create or update the tag database (S1). When two client devices are connected and the user issues a synchronization command, the communication module (140, 240) is used to read out the current tag database (130, 230) (S2). Then the tag data control module 260 compares the tag database and finds out all tag data corresponding to different email data (S3). Using the result of this comparison, the mail data control modules (150, 250) exchange email data. In order to update the email database (120, 220) (S4), and finally update the tag database (130, 230) (S5), to complete the processing of email synchronization.

According to the above, the e-mail data synchronization processing method of the present invention has the following advantages:

1. The processing method and device of the present invention can synchronize the e-mail data scattered in different terminal devices and different data folders, that is, integrate all e-mail data in the same terminal device and file, to facilitate further deal with.

2. In addition, the processing method and device of the present invention can also be applied to a system that keeps all mail data in the mail server. That is to say, when the user end wants to load the email data in the mail server, the method of the present invention can also be used to reduce the processing time between the mail server and the user end when data is downloaded, so as to improve the use efficiency of the network.

Although the present invention is disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Anyone skilled in this art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of protection of the invention should be defined by the appended claims.

Claims (12)

1. A kind of electronic mail data synchronous processing device, in order to carry out the synchronous of electronic mail with an external electronic mail data synchronous processing device, it is characterized in that comprising: an activation module for receiving a synchronization command from a user; An e-mail database having a plurality of e-mail data; A tag database, having a plurality of tag data corresponding to the above-mentioned e-mail data respectively; A communication module, coupled to the above-mentioned start-up module and receiving the above-mentioned synchronization command, is used to connect with an external email data synchronization processing device; A tag data control module, coupled to the above-mentioned communication module and the above-mentioned tag database, which corresponds to the above-mentioned synchronization command, reads the above-mentioned tag data of the above-mentioned tag database and obtains the above-mentioned external e-mail data synchronization processing device through the upper communication module , compare and search out all the marked data corresponding to different email data; and A mail data control module, coupled to the communication module, the tag data control module, the tag database and the e-mail database, according to the search results obtained by the tag data control module, read through the communication module The e-mail data of the above-mentioned external e-mail data synchronization processing device is fetched, so as to update the above-mentioned e-mail database and the above-mentioned mark database. 2. The device of claim 1, further comprising: An event setting module, used to set at least one specific event in a mail management program, the specific event is corresponding to the processing action of the above-mentioned mail management program for the above-mentioned email database, when the above-mentioned specific event occurs, the above-mentioned mail The management program sends an event notification; An event monitoring module for receiving the above-mentioned event notification; and An event registration module, according to the above-mentioned event notification received by the above-mentioned event monitoring module, performs corresponding modification on the above-mentioned tag database. 3. The device according to claim 2, wherein the tag data corresponding to each e-mail data is at least composed of identification data, location data and time data, and the identification data is used to identify the corresponding e-mail data , the location data is used to define the storage location of the corresponding email data, and the time data is used to define the latest update time of the corresponding email data. 4. A processing method for e-mail data synchronization, for synchronizing a plurality of e-mail data stored in a first device and a second device, it is characterized in that, comprising the following steps: Establishing a first mark database and a second mark data in the above-mentioned first device and the above-mentioned second device respectively, the above-mentioned first mark database is used to record the mark data corresponding to the e-mail data stored in the above-mentioned first device, and the above-mentioned second The tag database is used to record the tag data corresponding to the email data stored in the second device; reading the first tag database and the second tag database according to a synchronization command received by a startup module; According to the above-mentioned first tag database and the above-mentioned second standard database, it is used to search for all email data corresponding to the tag data recorded in the above-mentioned first tag database and the above-mentioned second tag database; According to the above-mentioned search results, and at least one of the above-mentioned first device and the above-mentioned second device is set as the synchronization result storage device, all the searched email data are stored; and Updating the tag database in the synchronization result storage device. 5. The processing method according to claim 4, wherein the first device and the second device are both client devices. 6. The processing method according to claim 4, wherein the first device is an email server device, and the second device is a client device. 7. The processing method according to claim 4, wherein the first device is a personal computer, and the second device is a portable personal computer. 8. The processing method as claimed in claim 4, characterized in that, in the step of establishing the above-mentioned first tag database, when the above-mentioned first device performs email transmission and reception processing, its corresponding tag data is stored in the above-mentioned In the step of establishing the second tag database, the corresponding tag data is stored in the second tag database when the second device transmits and receives emails. 9. The processing method according to claim 4, wherein the step of reading the first tag database and the second tag database includes: The first device sends a synchronization indication signal to the second device; According to the above-mentioned synchronization instruction signal, the above-mentioned second device reads the above-mentioned second tag database and sends it to the above-mentioned first device; and The above-mentioned first device reads the above-mentioned first tag database; And the above searching step is performed in the above first device. 10. The processing method according to claim 4, wherein the tag data corresponding to each e-mail data is at least composed of identification data, location data and time data, and the above-mentioned identification data is used to identify the corresponding e-mail data, the location data is used to define the storage location of the corresponding email data, and the time data is used to define the latest update time of the corresponding email data. 11. The processing method as claimed in claim 10, wherein in the above-mentioned search step, it is judged that the email data stored in the above-mentioned first device and the above-mentioned second device are duplicated according to the identification data in the above-mentioned tag data. E-mail data, so as to search out all e-mail data corresponding to the mark data recorded in the above-mentioned first standard data and the above-mentioned second mark data, and according to the time data in the above-mentioned mark data, determine the latest version of the e-mail data ; In the above-mentioned step of storing all the e-mail data found by comparison, the reading position of the e-mail data is determined according to the position data in the above-mentioned mark data. 12. The processing method according to claim 4, wherein the e-mail data is in an encrypted form through encryption processing.

Images