CN105099896A - Mail transmission method and equipment used for mail transmission - Google Patents
Mail transmission method and equipment used for mail transmission Download PDFInfo
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- CN105099896A CN105099896A CN201510598672.1A CN201510598672A CN105099896A CN 105099896 A CN105099896 A CN 105099896A CN 201510598672 A CN201510598672 A CN 201510598672A CN 105099896 A CN105099896 A CN 105099896A
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Abstract
The invention discloses a mail transmission method and equipment used for mail transmission. The method comprises the steps that connection request information of user equipment to a remote mail server is monitored and intercepted by a self-driven layer; connection of the user equipment, a local mail server and the remote mail server is established in turn according to the connection request information; the local mail server receives mail data information of the user equipment; the mail data information is analyzed and processed so as to acquire data to be transmitted; the local main server transmits the data to be transmitted to the remote main server; and connection of the local main server and the remote main server is disconnected. With application of the mail transmission method and the equipment used for mail transmission, the mail transmission method and the equipment used for mail transmission have advantages of being stable and reliable and easy to extend, and an unencrypted mail address can be specified without influencing user behaviors and security is high.
Description
Technical field
The present invention relates to computer network security field, particularly relate to a kind of e-mail transmission method and the equipment for mail transmission.
Background technology
Along with the arrival of information age, the rise of Email adds the channel of information exchange, everybody can in different location, random time exchanges various types of information, at some enterprises, internal institution, employee can obtain a large amount of valuable information, by email delivery mail, file, can also transmit the content such as voice, video.Some enterprises, unit even set up oneself mail server, and send to facilitate employee, revise and audit Mail Contents.
Email be a double-edged sword, greatly improve we operating efficiency, facilitate information exchange while also create the risk of information-leakage, case of divulging a secret is cumulative year after year trend.At present, in order to solve the safety problem of being divulged a secret by Email, although also serve certain protective action, also there is very large leak with not enough in several scheme below current main employing:
(1) oneself Intranet mail server of some company erection, all connect the behavior of outer nets to stop employee, can only in Network Communication, send mail, if sent outgoing mail, need a special computer to be responsible for transmission.So, cause external mail treatment to be got up and bother very much, employee also cannot be made by the knowledge needed for Network Capture work, had a strong impact on operating efficiency.
(2) some mail security products use application layer hook, carry out analysis encryption to the data flow of particular mail client, thus the problem that solution classified papers send with plaintext version.But Mail Clients is of a great variety, want to support all clients, implement more loaded down with trivial details and not easily stablize, and the hook of application layer is easy to be removed by employee's use safety instrument, fail safe is not high.
Summary of the invention
The object of the invention is to the defect overcoming prior art, and a kind of e-mail transmission method and the equipment for mail transmission are provided, have reliable and stable, be easy to expand, non-encrypted addresses of items of mail can be specified, do not affect user behavior and the high feature of self-security.
The technical scheme realizing above-mentioned purpose is:
A kind of e-mail transmission method of the present invention, comprising:
Self-driven layer is monitored and is intercepted and captured the connectivity request message of subscriber equipment to remote mail server;
The connection of described subscriber equipment, described local mail server and described remote mail server is created successively according to described connectivity request message;
Local mail server receives the mail data information of subscriber equipment;
Mail data information acquisition outgoing data described in analyzing and processing;
Local mail server sends described outgoing data to described remote mail server;
Disconnect the connection between local mail server and described remote mail server.
Further improvement of the present invention is, described self-driven layer is monitored and intercepted and captured the connectivity request message of subscriber equipment to remote mail server and comprises:
Layer is driven to monitor and intercept and capture the connectivity request message of subscriber equipment to remote mail server by TDI networks filter driver at TCP/IP.
Further improvement of the present invention is, described connectivity request message comprises an IP address and the first end slogan of the remote mail server that request connects.
Further improvement of the present invention is, the described connection creating described subscriber equipment, described local mail server and described remote mail server successively according to described connectivity request message comprises:
A described IP address replaced with the 2nd IP address of described local mail server and described first end slogan replaced with the second port numbers of described local mail server;
Create the connection of described subscriber equipment and described local mail server;
Local mail server sends connection request to the remote mail server corresponding with a described IP address and described first end slogan;
Create the connection of described local mail server and described remote mail server.
Further improvement of the present invention is, described in described analyzing and processing, mail data information acquisition outgoing data comprises:
Addressee information is obtained in current described mail data information;
Described addressee information is classified and adds white list queue or black list queue;
The copy of a current described mail data information is formed when black list queue exists at least one described addressee information, and to described duplicate cryptographic;
Described outgoing data comprises the first outgoing data and/or the second outgoing data, using current described mail data information as the first outgoing data, using described copy as the second outgoing data.
Further improvement of the present invention is, described local mail server sends described outgoing data to described remote mail server and comprises:
Send described first outgoing data to the remote mail server corresponding to described white list queue, and/or send described second outgoing data to the remote mail server corresponding to described black list queue.
Further improvement of the present invention is, described local mail server and described in each between remote mail server create have the first connecting path and the second connecting path;
Described first outgoing data is sent to the remote mail server corresponding to described white list queue by described first connecting path;
Described second outgoing data is sent to the remote mail server corresponding to described black list queue by described second connecting path.
Further improvement of the present invention is, the method also comprises: carry out log recording to the outgoing data sent.
Further improvement of the present invention is, the method also comprises:
After described local mail server receives the mail data information of subscriber equipment to the connection between described disconnection local mail server and described remote mail server, keep the connection of described remote mail server and described local mail server.
A kind of equipment for mail transmission of the present invention, comprising:
First device, monitors for self-driven layer and intercepts and captures the connectivity request message of subscriber equipment to remote mail server;
Second device, for creating the connection of described subscriber equipment, described local mail server and described remote mail server successively according to described connectivity request message;
3rd device, for receiving the mail data information of subscriber equipment at local mail server;
4th device, for mail data information acquisition outgoing data described in analyzing and processing;
5th device, for sending described outgoing data at local mail server to described remote mail server;
6th device, for disconnecting the connection between local mail server and described remote mail server.
Further improvement of the present invention is, described first device is used for:
Layer is driven to monitor and intercept and capture the connectivity request message of subscriber equipment to remote mail server by TDI networks filter driver at TCP/IP.
Further improvement of the present invention is, described connectivity request message comprises an IP address and the first end slogan of the remote mail server that request connects.
Further improvement of the present invention is, described second device is used for:
A described IP address replaced with the 2nd IP address of described local mail server and described first end slogan replaced with the second port numbers of described local mail server;
Create the connection of described subscriber equipment and described local mail server;
Local mail server sends connection request to the remote mail server corresponding with a described IP address and described first end slogan;
Create the connection of described local mail server and described remote mail server.
Further improvement of the present invention is, described 4th device is used for:
Addressee information is obtained in current described mail data information;
Described addressee information is classified and adds white list queue or black list queue;
The copy of a current described mail data information is formed when black list queue exists at least one described addressee information, and to described duplicate cryptographic;
Described outgoing data comprises the first outgoing data and/or the second outgoing data, using current described mail data information as the first outgoing data, using described copy as the second outgoing data.
Further improvement of the present invention is, described 5th device is used for:
Send described first outgoing data to the remote mail server corresponding to described white list queue, and/or send described second outgoing data to the remote mail server corresponding to described black list queue.
Further improvement of the present invention is, described local mail server and described in each between remote mail server create have the first connecting path and the second connecting path;
Described first outgoing data is sent to the remote mail server corresponding to described white list queue by described first connecting path;
Described second outgoing data is sent to the remote mail server corresponding to described black list queue by described second connecting path.
Further improvement of the present invention is, this equipment also comprises:
7th equipment, for carrying out log recording to the outgoing data sent.
Further improvement of the present invention is, this equipment also comprises:
8th equipment, before the connection after described local mail server receives the mail data information of subscriber equipment extremely between described disconnection local mail server and described remote mail server, keep the connection of described remote mail server and described local mail server.
The present invention is owing to have employed above technical scheme, and making it have following beneficial effect is:
Monitor due to self-driven layer and intercept and capture the connectivity request message of subscriber equipment to remote mail server, thus make method of the present invention can be applicable to the various Mail Clients of family equipment, this method is made to have stronger versatility, be easier to promote, implement more stable simultaneously, and prevent the situation by employee removes from application layer to occur, improve fail safe.By a described IP address being replaced with the 2nd IP address of described local mail server and described first end slogan being replaced with the second port numbers of described local mail server, achieve object subscriber equipment being connected to local mail server.By described addressee information being classified and adding white list queue or the classification of black list queue realization to addressee, thus realize sending unencryption mail to white list addressee respectively and blacklist addressee being sent to the function of privacy enhanced mail, on the basis that ensure that fail safe, also simplification process of transmitting is set by hommization, improves the operational efficiency of system.The setting of the first connecting path and the second connecting path, achieves point path transmission of privacy enhanced mail and unencryption mail.Log recording is for the ease of confirmation of responsibility afterwards, Content Advisor.After described local mail server receives the mail data information of subscriber equipment to the connection between described disconnection local mail server and described remote mail server, keep the connection of described remote mail server and described local mail server, prevent owing to not responding remote mail server for a long time, and the remote mail server that may cause disconnects network connection automatically, ensure that effective transmission of mail.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the e-mail transmission method of the embodiment of the present invention one;
Fig. 2 is the structural representation of the equipment for mail transmission of the embodiment of the present invention one;
Fig. 3 is the idiographic flow schematic diagram of analyzing and processing mail data information acquisition outgoing data in the e-mail transmission method of the embodiment of the present invention two;
Fig. 4 is the schematic flow sheet of the e-mail transmission method of the embodiment of the present invention four;
Fig. 5 is the structural representation of the equipment for mail transmission of the embodiment of the present invention four;
Fig. 6 is the schematic flow sheet of the e-mail transmission method of the embodiment of the present invention five;
Fig. 7 is the structural representation of the equipment for mail transmission of the embodiment of the present invention five.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Refer to Fig. 1, a kind of e-mail transmission method of the embodiment of the present invention one, comprising:
Self-driven layer is monitored and is intercepted and captured the connectivity request message of subscriber equipment to remote mail server, in the present embodiment, drives layer monitor and intercept and capture the connectivity request message of subscriber equipment to remote mail server by TDI networks filter driver at TCP/IP;
The connection of subscriber equipment, local mail server and remote mail server is created successively according to connectivity request message;
Local mail server receives the mail data information of subscriber equipment;
Analyzing and processing mail data information acquisition outgoing data, in the present embodiment, analyzing and processing can comprise mail data information encryption;
Local mail server sends outgoing data to remote mail server;
Disconnect the connection between local mail server and remote mail server.
Due to self-driven layer, preferably, layer is driven to monitor and intercept and capture the connectivity request message of subscriber equipment to remote mail server from TCP/IP, thus make method of the present invention can be applicable to the various Mail Clients of family equipment, this method is made to have stronger versatility, be easier to promote, implement more stable simultaneously, and prevent the situation by employee removes from application layer to occur, improve fail safe, meanwhile, the outbox that user also need not change oneself is accustomed to, and can continue normally to use the Mail Clients oneself be accustomed to.
Wherein, connectivity request message comprises an IP address and the first end slogan of the remote mail server that request connects.
In the present embodiment, the connection creating subscriber equipment, local mail server and remote mail server according to connectivity request message successively comprises:
One IP address replaced with the 2nd IP address of local mail server and first end slogan replaced with the second port numbers of local mail server;
Create the connection of subscriber equipment and local mail server;
Local mail server sends connection request to the remote mail server corresponding with an IP address and first end slogan;
Create the connection of local mail server and remote mail server.
By an IP address being replaced with the 2nd IP address of local mail server and first end slogan being replaced with the second port numbers of local mail server, achieve object subscriber equipment being connected to local mail server.
Refer to Fig. 2, a kind of equipment for mail transmission of the embodiment of the present invention one, comprising:
First device 1, monitors for self-driven layer and intercepts and captures the connectivity request message of subscriber equipment to remote mail server;
Second device 2, for creating the connection of subscriber equipment, local mail server and remote mail server successively according to connectivity request message;
3rd device 3, for receiving the mail data information of subscriber equipment at local mail server;
4th device 4, for analyzing and processing mail data information acquisition outgoing data;
5th device 5, for sending outgoing data at local mail server to remote mail server;
6th device 6, for disconnecting the connection between local mail server and remote mail server.
Wherein, first device 1 for:
Layer is driven to monitor and intercept and capture the connectivity request message of subscriber equipment to remote mail server by TDI networks filter driver at TCP/IP.
Wherein, connectivity request message comprises an IP address and the first end slogan of the remote mail server that request connects.
In the present embodiment, the second device 2 also for:
One IP address replaced with the 2nd IP address of local mail server and first end slogan replaced with the second port numbers of local mail server;
Create the connection of subscriber equipment and local mail server;
Local mail server sends connection request to the remote mail server corresponding with an IP address and first end slogan;
Create the connection of local mail server and remote mail server.
Refer to Fig. 3, a kind of e-mail transmission method of the embodiment of the present invention two, it is substantially identical with the method step of embodiment one, and its difference is: analyzing and processing mail data information acquisition outgoing data comprises:
Addressee information is obtained in current mail data message;
Addressee information is classified and adds white list queue or black list queue;
The copy of a current mail data message is formed when black list queue exists at least one addressee information, and to duplicate cryptographic;
Outgoing data comprises the first outgoing data and/or the second outgoing data, using current mail data message as the first outgoing data, using copy as the second outgoing data.
By addressee information being classified and adding white list queue or the classification of black list queue realization to addressee, thus realize sending unencryption mail to white list addressee respectively and blacklist addressee being sent to the function of privacy enhanced mail, on the basis that ensure that fail safe, also simplification process of transmitting is set by hommization, improves the operational efficiency of system.
Wherein, local mail server comprises to remote mail server transmission outgoing data:
Send the first outgoing data to the remote mail server corresponding to white list queue, and/or send the second outgoing data to the remote mail server corresponding to black list queue.
A kind of equipment for mail transmission of the embodiment of the present invention two, it is substantially identical with the device structure of embodiment one, and its difference is: the 4th device 4 for:
Addressee information is obtained in current mail data message;
Addressee information is classified and adds white list queue or black list queue;
The copy of a current mail data message is formed when black list queue exists at least one addressee information, and to duplicate cryptographic;
Outgoing data comprises the first outgoing data and/or the second outgoing data, using current mail data message as the first outgoing data, using copy as the second outgoing data.
5th device 5 for:
Send the first outgoing data to the remote mail server corresponding to white list queue, and/or send the second outgoing data to the remote mail server corresponding to black list queue.
A kind of e-mail transmission method of the embodiment of the present invention three, its step is substantially identical with the method for embodiment two, and its difference is: creating between local mail server and each remote mail server has the first connecting path and the second connecting path;
The first outgoing data is sent to the remote mail server corresponding to white list queue by the first connecting path;
The second outgoing data is sent to the remote mail server corresponding to black list queue by the second connecting path.
The setting of the first connecting path and the second connecting path, achieves point path transmission of privacy enhanced mail and unencryption mail.
A kind of equipment for mail transmission of the embodiment of the present invention three, it is substantially identical with the device structure of embodiment two, and its difference is:
Create between local mail server and each remote mail server and have the first connecting path and the second connecting path;
The first outgoing data is sent to the remote mail server corresponding to white list queue by the first connecting path;
The second outgoing data is sent to the remote mail server corresponding to black list queue by the second connecting path.
Refer to Fig. 4, a kind of e-mail transmission method of the embodiment of the present invention four, its step is substantially identical with embodiment three, and its difference is: the method also comprises: carry out log recording to the outgoing data sent.Log recording is for the ease of confirmation of responsibility afterwards, Content Advisor.
Refer to Fig. 5, a kind of equipment for mail transmission of the embodiment of the present invention four, it is substantially identical with the device structure of embodiment three, and its difference is: also comprise:
7th equipment 7, for carrying out log recording to the outgoing data sent.
Refer to Fig. 6, a kind of e-mail transmission method of the embodiment of the present invention five, it is substantially identical with the method for embodiment four, and its difference is, the method also comprises:
After local mail server receives the mail data information of subscriber equipment to the connection disconnected between local mail server and remote mail server, keep the connection of remote mail server and local mail server, prevent owing to not responding remote mail server for a long time, and the remote mail server that may cause disconnects network connection automatically, ensure that effective transmission of mail.
Refer to Fig. 7, a kind of equipment for mail transmission of the embodiment of the present invention five, it is substantially identical with the device structure of embodiment four, and its difference is: also comprise:
8th equipment 8, for extremely disconnect the connection between local mail server and remote mail server after local mail server receives the mail data information of subscriber equipment before, keeps the connection of remote mail server and local mail server.
Below embodiment is to invention has been detailed description by reference to the accompanying drawings, and those skilled in the art can make many variations example to the present invention according to the above description.Thus, some details in embodiment should not form limitation of the invention, the present invention by the scope that defines using appended claims as protection scope of the present invention.
Claims (18)
1. an e-mail transmission method, comprising:
Self-driven layer is monitored and is intercepted and captured the connectivity request message of subscriber equipment to remote mail server;
The connection of described subscriber equipment, described local mail server and described remote mail server is created successively according to described connectivity request message;
Local mail server receives the mail data information of subscriber equipment;
Mail data information acquisition outgoing data described in analyzing and processing;
Local mail server sends described outgoing data to described remote mail server;
Disconnect the connection between local mail server and described remote mail server.
2. method according to claim 1, wherein, described self-driven layer is monitored and is intercepted and captured the connectivity request message of subscriber equipment to remote mail server and comprises:
Layer is driven to monitor and intercept and capture the connectivity request message of subscriber equipment to remote mail server by TDI networks filter driver at TCP/IP.
3. method according to claim 1, wherein, described connectivity request message comprises an IP address and the first end slogan of the remote mail server that request connects.
4. method according to claim 3, wherein, the described connection creating described subscriber equipment, described local mail server and described remote mail server successively according to described connectivity request message comprises:
A described IP address replaced with the 2nd IP address of described local mail server and described first end slogan replaced with the second port numbers of described local mail server;
Create the connection of described subscriber equipment and described local mail server;
Local mail server sends connection request to the remote mail server corresponding with a described IP address and described first end slogan;
Create the connection of described local mail server and described remote mail server.
5. method according to claim 1, wherein, described in described analyzing and processing, mail data information acquisition outgoing data comprises:
Addressee information is obtained in current described mail data information;
Described addressee information is classified and adds white list queue or black list queue;
The copy of a current described mail data information is formed when black list queue exists at least one described addressee information, and to described duplicate cryptographic;
Described outgoing data comprises the first outgoing data and/or the second outgoing data, using current described mail data information as the first outgoing data, using described copy as the second outgoing data.
6. method according to claim 5, wherein, described local mail server sends described outgoing data to described remote mail server and comprises:
Send described first outgoing data to the remote mail server corresponding to described white list queue, and/or send described second outgoing data to the remote mail server corresponding to described black list queue.
7. method according to claim 5, wherein, described local mail server and described in each between remote mail server create have the first connecting path and the second connecting path;
Described first outgoing data is sent to the remote mail server corresponding to described white list queue by described first connecting path;
Described second outgoing data is sent to the remote mail server corresponding to described black list queue by described second connecting path.
8. method according to claim 1, wherein, the method also comprises: carry out log recording to the outgoing data sent.
9. method according to claim 1, wherein, the method also comprises:
After described local mail server receives the mail data information of subscriber equipment to the connection between described disconnection local mail server and described remote mail server, keep the connection of described remote mail server and described local mail server.
10. for an equipment for mail transmission, it is characterized in that, comprising:
First device, monitors for self-driven layer and intercepts and captures the connectivity request message of subscriber equipment to remote mail server;
Second device, for creating the connection of described subscriber equipment, described local mail server and described remote mail server successively according to described connectivity request message;
3rd device, for receiving the mail data information of subscriber equipment at local mail server;
4th device, for mail data information acquisition outgoing data described in analyzing and processing;
5th device, for sending described outgoing data at local mail server to described remote mail server;
6th device, for disconnecting the connection between local mail server and described remote mail server.
11. equipment according to claim 10, wherein, described first device is used for:
Layer is driven to monitor and intercept and capture the connectivity request message of subscriber equipment to remote mail server by TDI networks filter driver at TCP/IP.
12. equipment according to claim 10, wherein, described connectivity request message comprises an IP address and the first end slogan of the remote mail server that request connects.
13. equipment according to claim 12, wherein, described second device is used for:
A described IP address replaced with the 2nd IP address of described local mail server and described first end slogan replaced with the second port numbers of described local mail server;
Create the connection of described subscriber equipment and described local mail server;
Local mail server sends connection request to the remote mail server corresponding with a described IP address and described first end slogan;
Create the connection of described local mail server and described remote mail server.
14. equipment according to claim 10, wherein, described 4th device is used for:
Addressee information is obtained in current described mail data information;
Described addressee information is classified and adds white list queue or black list queue;
The copy of a current described mail data information is formed when black list queue exists at least one described addressee information, and to described duplicate cryptographic;
Described outgoing data comprises the first outgoing data and/or the second outgoing data, using current described mail data information as the first outgoing data, using described copy as the second outgoing data.
15. equipment according to claim 14, wherein, described 5th device is used for:
Send described first outgoing data to the remote mail server corresponding to described white list queue, and/or send described second outgoing data to the remote mail server corresponding to described black list queue.
16. equipment according to claim 14, wherein, described local mail server and described in each between remote mail server create have the first connecting path and the second connecting path;
Described first outgoing data is sent to the remote mail server corresponding to described white list queue by described first connecting path;
Described second outgoing data is sent to the remote mail server corresponding to described black list queue by described second connecting path.
17. equipment according to claim 14, wherein, this equipment also comprises:
7th equipment, for carrying out log recording to the outgoing data sent.
18. equipment according to claim 10, wherein, this equipment also comprises:
8th equipment, before the connection after described local mail server receives the mail data information of subscriber equipment extremely between described disconnection local mail server and described remote mail server, keep the connection of described remote mail server and described local mail server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598672.1A CN105099896A (en) | 2015-09-18 | 2015-09-18 | Mail transmission method and equipment used for mail transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510598672.1A CN105099896A (en) | 2015-09-18 | 2015-09-18 | Mail transmission method and equipment used for mail transmission |
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| CN105099896A true CN105099896A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510598672.1A Pending CN105099896A (en) | 2015-09-18 | 2015-09-18 | Mail transmission method and equipment used for mail transmission |
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| CN (1) | CN105099896A (en) |
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| CN105681174A (en) * | 2016-03-18 | 2016-06-15 | 山东华软金盾软件股份有限公司 | Mail sending protection method and device |
| CN107277024A (en) * | 2017-06-27 | 2017-10-20 | 北京明朝万达科技股份有限公司 | A kind of data leakage prevention method and system based on TDI interface layers |
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| US20040221048A1 (en) * | 2001-08-01 | 2004-11-04 | Ogier Rohan Anthony | Email archive system |
| CN101702121A (en) * | 2009-10-29 | 2010-05-05 | 珠海金山软件股份有限公司 | Device for controlling network flow of program in Windows system |
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| CN107277024A (en) * | 2017-06-27 | 2017-10-20 | 北京明朝万达科技股份有限公司 | A kind of data leakage prevention method and system based on TDI interface layers |
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Application publication date: 20151125 |