CN1564167A - Method of dealing with refuse mail - Google Patents
Method of dealing with refuse mail Download PDFInfo
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- CN1564167A CN1564167A CN 200410017570 CN200410017570A CN1564167A CN 1564167 A CN1564167 A CN 1564167A CN 200410017570 CN200410017570 CN 200410017570 CN 200410017570 A CN200410017570 A CN 200410017570A CN 1564167 A CN1564167 A CN 1564167A
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Abstract
Key point in the invention is that a host name of virtual entrance server is added to E-mail address, and a special method for treating E-mail is added in SMTP server. In the invention, whether E-mail is accorded with condition is validated by server name at virtual entrance. Whether a E-mail to be received or rejected is based on parameters preset by user, and whether replying a mail including correct address containing mixed text and image replied is based on the said setting. The server name at entrance is composed of field set by system and character string, which is set and possible to be modified by user, and opened/closed decided by user.
Description
Technical field:
The present invention relates to Email, particularly prevent and handle the method for some non-request type Emails (spam).
Background technology:
What is a spam? not general definition at present, in China, common spam thinks that the Email that comprises following attribute is called spam: [note, only be suitable in China]
(1) addressee does not claim or tendentious Email such as advertisement of agreeing to receive, electronic publication, various forms of propaganda materials in advance;
(2) Email that can't reject of addressee;
(3) Email of information such as hiding sender's identity, address, title;
(4) contain the Email of information such as false information source, sender, route.Spam, international title is spam-mail, and problem is of long duration, and it is development gradually along with popularizing of Email, has become global problem till now.The harm that it causes mainly comprises: 1. take the network bandwidth, cause mail server congested, and then reduce whole network operating efficiency; 2. invade addressee's the right of privacy, occupy addressee's box space, expend addressee's time, energy and money.The spam that has is also usurped other people e-mail address and is done the address of posting a letter, grievous injury other people prestige; 3. utilized the instrument that becomes to help make it from bad to worse by the hacker.4. have a strong impact on the service image of ISP.The frequent main frame of transmitting spam can be listed in international spam database by anti-rubbish mail tissue on the international the Internet, thereby causes this main frame can not visit many networks.5. deceitful wealth, the spam of contents such as propagation pornographic works the mischief to real society.Solve the spam problem and become a global problem.
We think exist always rational, since can there be and obtains swift and violent development in spam, I think reasonable existence equally, although everybody opposes that this is a reality.Whom is the fabricator of spam so? God? of course not, just ordinary people one by one for certain interests, impels him to carry out this behavior.We think the driving of interests, and perhaps the someone asks, I often receive some indescribable spams, are just writing the acting server IP address of several recommendations, and it is for what, and what does not all obtain for it.We think that it also is for certain interests, for example perhaps your website that will visit has been masked by ISP, and they are in order to promote the website of oneself, and then allows you accept their thinking or propaganda, so just send and to get around the approach of restriction, so also be that interests drive.We can sum up several Key Points:
1, that be engaged in that spam sends is people in the real society, is not animal, neither angle or God in the sky.
2, sending spam is in order to obtain certain interests, i.e. interests driving.
3, we think to have only the spam that utilizes electronic program to carry out automatic trunking transmitting just can be defined as real spam, if and the individual adopts the mail of making spam by hand and sending (being non-automatic mass-sending) at different E-MAIL address, even on its Mail Contents be the range of definition that belongs to spam, we can not think that this is real spam.
4, the E-MAIL address obtain easily and fixedly validity be the key factor that spam is produced and develops.
5, the marginal cost trend zero that sends spam is the basic reason that causes spam to spread unchecked.
The anti-spam technologies analysis of having used at present or being about to use:
A: envelope spam server IP address (RBL [Realtime BlackholeList is called for short RBL]) technology
This class technology exists many serious problems, has determined it unlikely to be adopted on a large scale:
[a], such organizes major part is non-government institution, and the government organs of inauthoritativeness do not possess absolute authority.
[b], such organizes major part is non-profile mechanism, the variety of issue that user is not used blacklist list and may cause is responsible for, be that we recommend you freely to use our blacklist, but we do not guarantee in the blacklist that 100% is correct, can not guarantee our DNS A record service stable operation in 24 hours, all kinds of problems that may cause owing to use our blacklist technology are responsible for by user oneself, and the wright is entertain any liability not.
[c], IT managerial personnel's the psychology of going after profits and advoiding disadvantages.
[d], hazard boundary are too wide.We find that through regular meeting certain IP address is sending spam in the network segment, and the whole network segment of result (particularly C class) all has been added in the blacklist.We illustrate with a C class network segment, remove that IP address of sending out spam, also have 252 valid ip address, suppose to have on each IP address 10 (being actually not only) fictitious host computer users to share, a user sends out spam and causes 2520 users to advance blacklist so.This resembles a group of sheep the inside and has sneaked into a wolf that is draping over one's shoulders sheepskin, and whether does sample all kill whole flock of sheep for we in order to kill this wolf?
B: filtering type anti-spam technologies
At present red blue be crucial first weighting statistic algorithms of all kinds of Bayes and its mutation, but this class technology exists serious problem,
[a] can only judge statistics at existing keyword, in case do not occur these speech in the spam, will fail to judge so.
[b] can not filter pictorial and dynamically be connected the webpage spam.
All there is the erroneous judgement problem forever in [c], and just this technology of dependence that people all the time can't 100% is judged spam, and the user must get involved to prevent that normal email from being deleted by mistake.
[d] when running into large-scale text-mail, will obviously take a large amount of system resource and carry out than team and statistics.
[e] carries out analog computation and adjusts spam to Gao Zhengfen in case the spammer uses the same method in advance, for example adds a large amount of positive participles, so just can directly make this class filter algorithm lose due effect.
[f], adopt this class algorithm, at first to decode and (can certainly directly use byte stream to add up mail, but the speech that obtains like that is without any meaning, can cause serious erroneous judgement), different language (English, simplified form of Chinese Character, Arabic ...) need different tables with different codings (ANSI/UNICODE), this is a serious problem.Remove mail head's filtration (that uses in the WEB mailbox is the widest at most) in addition in addition, the addresses of items of mail behind the MAILFROM/FROM/TO filters or the like, and all some effect still should
Also not ideal with wideless effect.
C: host name authenticate reverse technology
[a], the setting of present most mail server program all exists nonstandard problem is set, and that is to say that lack of standardization is main flow, standard be minority, although minority is correct.If you adopt this technology, must consider whether the other side is provided with the problem of standard.
[b], existing IP resource will be assigned with in the time of IP V4 agreement to 2005 year, to face the problem that forwards IP V6 agreement to that kind, and in case adopt IP V6, because IP V6 adopts three grades of dns resolutions, but possible everyone can have IP address and domain name (host name) that can be resolved many, and this technology will thoroughly lose effect so.
[c] can only send and can't tackle the spam that adopts static ip address or fictitious host computer user at using dynamic IP addressing to carry out the spam mass-sending at present.
[d], dynamic IP addressing user such as ADSL can utilize dynamic-dns domain name mapping technology to avoid this class anti-spam technologies.
[e], utilize special DNS means to carry out D.O.S. attack or the transmission of deception formula, still there is this leak in the server of SINA in fact, and concrete implementation method is not described in detail here and prevents to be utilized to attack, but tells everybody to exist this to be difficult to the leak of repairing.
[f], we can not forget that all the time INTERNET is an open society freely, any technology of running counter to this criterion is very difficult received, in like manner, inquire about IP is counter, refused the mail straight hair technology of dynamic IP addressing, but we just think, in our the real society except sending mail by the post office, we can also utilize all kinds of express companies to send all kinds of important wrapped files that need emergency treatment, whether you also can notify, and are our forbidden express company to exist? if the post office can't guarantee the efficient that we require and what if send to the time?
D: black and white lists method anti-spam technologies:
If everybody inquired about the anti-spam technologies part abroad, can find the patent of long one big string so about the black and white lists anti-spam technologies, the OUTLOOK of Microsoft's latest edition it is said also with integrated black and white lists anti-spam functionality at wire-speed.
This technology can have application among a small circle at present, but also there are a lot of problems in it:
[a], if the employed mailing system of A and B has all adopted the black and white lists technology, 2 people send out mail to the other side for the first time, endless loop will occur so.
A sends out mail to B, because A sends out mail to give B for the first time, so the mailing system of B is temporarily preserved the mail of A, a concurrent envelope is confirmed the affirmation of mail to A request A, and after A receives the mail that the request of B confirms, and do not know it is special confirmation letter, because A also is the mail that receives B for the first time, the envelope request of sending out so the mailing system of A also will fasten this mail confirms that mail is to B, and B receives behind this mail owing to do not receive the confirmation letter of A, so still fastened the affirmation of waiting for A, two people of A and B do not see the affirmation mail like this, and the mailing system of A and B has been absorbed in mutual blindness and issueless infinite wait has suffered.
[b], this technology has changed flow process and the custom that the user uses mail, and this is a very serious problem, just imagines, you send out mail for a new friend at every turn all must check (even change an EMAIL address send out mail also require to reaffirm), is this what sensation?
[c] when adding all kinds of mail tabulations, must manually add this addresses of items of mail in advance, otherwise can't receive mail in the white list of mailing system.
[d], system must expend the temporary mail of a large amount of resources, and must obtain the other side's cooperation (the other side will agree to confirm, otherwise will manually add white list).
[f] is cracked in case confirm the rule form of mail, so just can't resist intellectual automatic affirmation to obtain general white list, and this technology will thoroughly be routed like this.
E: we have noticed that domestic applications number are 03115582.0 the process patent that prevents spam, but there is following problem in this method:
[a], the addressee controls addresses of items of mail only appointee or mechanism's use in the brief description, and this method has also been refused well-meaning stranger when preventing spam, and this has seriously limited its usable range; And it is open spiritual freely to have run counter to INTERNET.
[b], when label changes because of leakage, but the address owner has been because a variety of causes has forgotten to notify some or certain the original people who uses this tag addresses, and these people will be absorbed in infinite wait because label is incorrect up to being apprised of so.
[c] if the both sides of original communication use this technology, and changed label simultaneously because label is revealed, and the same with black and white lists so, both sides have limit in the infinite wait of endless loop.
[d] because USERNAME place in addresses of items of mail has inserted label, causes the USERNAME part long and then that the E-MAIL address has been lost is original succinctly understandable, and do not meet the related definition in the RFC standard document.
Summary of the invention:
The invention provides a kind of method and system that tackles spam,, reject spam reliably, can also prevent that stranger's good will contact from can't carry out simultaneously by active process work in mail server side.Judge reception or rejection by the active before receiving the mail body, can reduce the harm of spam greatly, reduce the overhead of server, and compatible original use habit, flexible and convenient to use.
The scheme that the present invention deals with problems is as follows:
A kind of method that tackles spam comprises
1) in the address of Email, increases a virtual portal server name, and in dns server, utilize wide area name analysis method that this territory main frame (containing MX resolves) that all comprise virtual portal server name is resolved on the specific server ip address.
2) the virtual server name is kept on its memory device by mail server (SMTP);
3) mail server (SMTP) increases the specific system that handles postal matter of a cover;
4) specific program that handles postal matter of this system is:
[1] judges that at first whether the source addresses of items of mail belongs to the interior address or the territory of privileged account of system or user's setting, if then receive, otherwise continues next step;
[2] if not, check whether purpose E-MAIL address has specific virtual server name; If no, judgement may be a spam, and then the method for presetting according to the addressee is handled and received or reject, and this outbox address given automatically replies post-processing system.
[3] if virtual portal server name is arranged, whether this virtual portal server of checking the user is opened earlier, if close, then be provided with to receive or reject this mail and this address given and automatically reply the specific mail disposal system according to the addressee, otherwise judge this portal server name whether with predefined one or several names of addressee in whether have identical, if have, just receive; If no, being judged to be may be spam, and then the setting according to the addressee receives or rejects, and this address is given automatically reply the specific mail disposal system simultaneously.
5) mail server (SMTP) increases the disposal system that a cover automatically replies specific mail;
6) this program that automatically replies the specific mail disposal system is:
[1] at first checks according to different type of error whether the user is provided with and allow such mistake to automatically reply,, otherwise continue next step if not then simply return.
[2] judge that at first this return address whether in the tabulation that sends specific mail or specific mail to be sent, if just this address is not added tabulation to be sent, otherwise just simply returns.
[3] being provided with according to user and system with particular picture and the synthetic specific mail of aid illustration group of text.
[4] this particular picture is meant with the user E-MAIL address of correct virtual portal server name and arrives JPEG or BMP picture, and this picture can be to be kept in advance on the storage system of smtp server when the user is provided with or revises the portal server name, also can be that system's automatic generation when sending is kept on the smtp server storage system then, and discern automatically to prevent computer through certain processing.
The create-rule of virtual server name is as follows:
1) this virtual portal server name is participated in specifying by the user, and can revise user's setting section at any time and on-fixed.
2) position of virtual server name is the domain name part of address addresses of items of mail, promptly is right after after the symbol, before the domain name, uses. symbol is connected with original domain name.
3) everyone sets character string and forms this virtual portal server name by the specific rule character string of system and addresses of items of mail, and can separate connection in the centre with the specific separating character of system as required; Also can give tacit consent to generation automatically by system.
This system allows:
Everyone can have a plurality of virtual portal server names simultaneously each addresses of items of mail.Everyone can close and open the inlet of each virtual portal server name representative addresses of items of mail under system's permissive condition.
This system represents different inlets and inlet password with virtual portal server name, wherein the character of everyone appointment of addresses of items of mail strings the password effect of this inlet in virtual portal server name, and system's specific character strings the effect of the virtual portal server names of the different inlets of sign.The addresses of items of mail of different inlets has different authorities and function, and concrete meaning can be stipulated as required voluntarily by different systems.
Technological merit of the present invention
Repaired the trust defective of smtp protocol itself, and meet the RFC821/822 standard fully, by rejection before the mail body sends, greatly reduce the spam resource occupation problem of server, can prevent helpless problem after reveal the address by the variable address of classifying, verification and measurement ratio is very accurate, only refuse mail and do not delete any mail and avoided mistake to delete the normal email problem, unlatching automatically replies and guarantees to refuse good will but thereby correct contact method is known to obtaining the mail that automatically replies that the user is provided with when the problem mail is arranged in the address in mistake, and the inlet classification has guaranteed the use dirigibility of address.
Description of drawings:
The mail treatment process flow diagram that Fig. 1 the present invention is specific
Fig. 2 the present invention automatically replies the specific mail flow chart illustration
The overall logic structural drawing of Fig. 3 mail reception of the present invention system
The inlet setting and the implication figure of a typical virtual portal server name representative of Fig. 4 native system
Embodiment:
The present invention can prevent with the core of disposal of refuse mail:
1, in e-mail address, increased a virtual portal server name
2, mail server (SMTP) increases the specific system that handles postal matter of a cover
3, mail server (SMTP) increases the disposal system that a cover automatically replies specific mail
4, this system represents different inlets and this inlet password with virtual portal server name, and wherein the character of everyone appointment of addresses of items of mail strings the password effect of this inlet in virtual portal server name; The addresses of items of mail of different inlets has different authorities and function.
5, the inlet of native system can be divided by the difference requirement of different system, and different authorities and function are set.
With reference to figure 3, mode and position that native system can exist have been described in the figure earlier, promptly can be integrated into SMTP mail server program inside, also can independently be used as the SMTP Mail Gateway.What Fig. 3 illustrated is a flow process that receives mail, does not comprise the transmission mail.
The complete form of addresses of items of mail on the INTERNET is username@host.domain at present, be the user name main frame. domain name, this meets the RFC822 standard, the host.domain here is the complete standard compliant domain name (fullqualified domain name) of main frame, this is that an absolute address is (with reference to the Email server configures and the management of publishing house of Tsing-Hua University publication, work such as Duan Xiaohua, the 3rd page), and usually we see and that use is username@domain, as danscort@sohu.com.The present invention has added a virtual portal server (entryhost) name, username@entryhost.host.domain, the i.e. virtual portal server name of user name in the back of symbol before the host.domain. host name. and domain name.And this virtual server name is to set according to certain system convention, and the character string that can use special separating character connected system preset characters string and user to set, for example can use underscore, # sign character etc.
Because native system is used to receive on the SMTP mail, promptly in fact play a role at the MX mail exchange server, use be smtp protocol.After a SMTP connects beginning, promptly use MAIL FROM the other side: and RCPT TO: after the instruction, before local smtp server sent DATA command reception mail body, native system began to play a role, and please refer to the flow process of the described native system of Fig. 1.At first check MAILFROM: in the instruction with E-MAIL address, source whether in system and addressee's privileged account, exist or coupling, if there is the just unconditional subscriber mailbox (also can give other filter filtration treatment) that receives and directly be put into according to actual conditions; Otherwise continue next step inspection, the current RCPT TO that checks: whether the E-MAIL address after the instruction has virtual portal server name, if do not have, just classify as no virtual portal server name mistake class mail, the mail that whether receives no virtual portal server name mistake that is provided with according to the addressee decides and receives or reject, and simultaneously type of error and address, source is given to automatically reply the specific mail system and go processing; If have, that just continues that next step checks this virtual portal server name representative goes into slogan and inlet password, and this inlet of whether opening that is provided with according to the addressee decides, if it is not open, just classify as virtual portal server name mistake class mail, the mail that whether receives virtual portal server name mistake that is provided with according to the addressee decides and receives or reject, and simultaneously type of error and address, source is given to automatically reply the specific mail system and go to handle; If opened this inlet, then continue to check the virtual portal server name entirely true coupling whether of represent this inlet, if mistake is carried out same treatment with top mistake, if correctly, then receive this mail.
Type of error and the source address be submitted to automatically reply the specific mail system after, this system start-up, with reference to figure 2, at first check in address, source that sends the specific mail tabulation and receiver address whether (the upgrading by certain hour) of coupling is fully arranged, be just to finish, need not repeat, just do not add this tabulation to be sent because carried out in the short time replying, the reason of profiling error then, and handle according to whether automatically replying of being provided with of different mistakes and addressee.
Generation classification that another key of the present invention is exactly virtual portal server name and use wide area name analysis.Wide area name analysis (contain MX resolve) then should promptly and accurately be disposed, otherwise total system can't turn round, can be with reference to computer newspaper network service version on March 29th, 2004 to the parsing aspect of wide area name about DNS.The composition of virtual portal server name must guarantee that at first system can accurately discern and separating system regulation character string and addressee set character string, secondly this virtual portal server name bring very big trouble as in the memory should be unable to for the article receiving and sending people, and character string that at last should virtual portal server name user setting partly (except the empty string) the exhaustive scanning that should be able to resist small sample dictionary (as 1000 combinations) cracks.The present invention has specially formulated following combination method to set up:
[1], the default character string and the addressee of virtual server name set character string by the letter in the ascii character that INTERNET arranged, and arabic numeral are formed, and wherein the default character string generates by certain system convention.For example we can stipulate, the character in virtual portal server name foremost must be E, follow 3 different gate numbers of arabic numeral representative thereafter, maximum is 008, be the character string of maximum 16 characters of being provided with of user then, for example " abcdefg ", the complete name of this virtual portal server name should be E001abcdefg so, E002abcdefg ... E008abcdefg etc.
[2], we can give different implications and different function and authority etc. for different inlets, also can a plurality of inlet passwords be set to form a plurality of addresses of items of mail for an inlet according to specific (special) requirements, a typical configuration please refer to the explanation of Fig. 4, and for example we can give a plurality of inlet passwords to user entry and form a plurality of effective addresses.Wherein open inlet is that the user often uses, and the address that has this virtual inlet mail server name can be provided for familiar people or mechanism, and this address is relatively stable, and this address allows to be written in the specific mail picture that automatically replies simultaneously; Privately owned inlet, this inlet can not provide in the automatic feedback mail of system, so the addresses of items of mail that contains this virtual mail server name can be used as personal contact and important persons trusty or structure.Interim inlet means that then the user in the virtual server name in this addresses of items of mail sets character string and can often change.Black hole inlet means that then any mail that mails to this entry address can not make mistakes, but all can directly be abandoned and can not enter in addressee's the mailbox.Inquiry inlet means that then this address is the E-MAIL address that is used to inquire about the correct virtual server name of the band that can openly get in touch that the addressee is provided with.User entry can be set a plurality of inlet character strings (inlet password), and system can carry out query composition automatically.Here note: 114 inlets and black hole inlet, whether no matter the user be set set character string, all become empty string by system handles, the portal server name of the E-MAIL address of promptly any these 2 inlets of appointment all is correct.
[3], the default character string and the addressee of virtual server name sets character string and also can use special but can be connected by the ASCII character character that INTERNET accepts and play compartmentation, for example use the # sign character, underscore etc., but can cause ambiguity as. (point) then not may be utilized.
[4], the character string that the user sets partly can be revised at any time, and length is variable in the maximum length scope that system's regulation allows.
For example, a Typical Disposition with reference to figure 4, it stipulates that system is divided into open inlet, private inlet, interim inlet, the black hole inlet, 114 inlets, user entry etc., and given different authorities, different inlets has been represented different implications, for example certain user's original address is abc@123.com, supposing the system regulation character string is formed form and is English character E beginning, 3 arabic numeral with heel representative inlet are represented the different slogans of going into as 001, wherein the right of different inlets and setting and effect please refer to Fig. 4, system's regulation adopts underscore to connect character, suppose that it is openmail that the user sets the character string (inlet password) that open inlet sets, the addresses of items of mail of the correct virtual portal server name of the complete band of this inlet is so: abc@e001_openmail.123.com, according to the description of Fig. 4, this address can be presented in automatically replying, and there is password (being the character string that the user is provided with) certainly in this address, and can close this entry address, after this inlet was closed, any mail that mails to this address all can be taken as the mail of inlet password mistake and handle, and can also close automatically replying of this address; The character string (inlet password) that this user sets privately owned inlet is myown, and his privately owned entry address is so: abc@e002_myown.123.com.Be that form is the character string (inlet password) that user name is gone into slogan or entry name abbreviation _ user setting. main frame. domain name, and according to Fig. 4, the privately owned entry address here can automatically not replied, like this, the user does not reveal to the spam person because of the reason of oneself as long as can guarantee, guarantee only to be used for the contact of important people or mechanism, can guarantee the disguise of this address substantially.Fig. 4 gives interim inlet etc., and for example the black hole inlet just represents that anyone can send out mail toward this address, and can not be rejected, the mail that sends can really be put in user's the mailbox, can not reply any mail, i.e. yet only import but no export, any transmission all is successful; 114 inlets have here then guaranteed the user when closing the automatic answering system function of other normal entry, can guarantee that the user can obtain correct contact address thus; User entry then can set several inlet passwords, and according to user's requirement authority and function etc. is set.Here, going into slogan or inlet abbreviation by e underlines the user and sets character string and formed virtual portal server name, system at first judges whether inlet specifies (if going into slogan not in system's specified scope then by inlet password fault processing) according to 4 before underscore letters when judging, the character string of setting according to the user judges whether password correctly carries out different processing then.
A key character of native system is that the correct addresses of items of mail that will have correct virtual portal server name is written in picture (JPEG or GIF) rather than the text, carry out certain processing in case identification automatically, and this disposal route can be decided in its sole discretion by different systems, and in mail, add the explanatory note part, send to the other side then, the advantage of utilizing JPEG or GIF directly to be shown by most Mail Clients automatically shows the other side, when the JPEG/GIF picture can't be shown automatically by the other side's client software, the explanatory note part can play emergent illustration and strive for the trust of the other side to caption, and provides connection or the E-MAIL address that helps or illustrate.Can prevent that so promptly the spammer from utilizing program to analyze automatically and obtaining correct E-MAIL address automatically, prevent the emergency measure when picture can not show automatically again.In sum, the advantage of native system:
1, be to have solved addresses of items of mail to immobilize, in case reveal to be given the problem that spam just can only passive reception spam.
2, simple in structure, realize easily, and meet the RFC821/822 international standard fully.
3, by single addresses of items of mail being classified and giving different meaning effect and authority, make the user use different E-MAIL addresses at the different objects of different occasions.
4, verify by virtual portal server name whether mail is legal, and whether receive illegal mail by everyone decision of addresses of items of mail, when guaranteeing compatibility, can effectively refuse spam.
5, by the specific image mixed character typeset mail of automatically replying of system, can allow the stranger to obtain effective contact address, guarantee the smooth migration and the opening of system like this, and revised the defective of the contingent mutual blindness circular wait of other system.
6, by correct effectively E-MAIL address is write in the picture and handled, can prevent that the fast automatic of electronic program from cracking, the collection of spam address need be paid high cost like this.And utilize the text declaratives that automatically reply in the mail, can prevent from not take place without any the problem of pointing out when picture from not shown automatically.
Claims (8)
1, a kind of method that tackles spam comprises:
1) in the address of Email, increases a virtual portal server name, and in dns server, utilize wide area name analysis method that this territory host name (containing MX resolves) that all comprise virtual portal server name is resolved on the specific server ip address.
2) the virtual server name is kept on its memory device by mail server (SMTP);
3) mail server (SMTP) increases the specific system that handles postal matter of a cover;
4) specific program that handles postal matter of this system is:
[1] judges that at first whether the source addresses of items of mail belongs to the interior address or the territory of privileged account of system or user's setting, if then receive, otherwise continues next step;
[2] if not, check whether purpose E-MAIL address has specific virtual server name; If no, judgement may be a spam, and then the method for presetting according to the addressee is handled and received or reject, and this outbox address given automatically replies post-processing system.
[3] if virtual portal server name is arranged, whether this virtual portal server of checking the user is opened earlier, if close, then be provided with to receive or reject this mail and this address given and automatically reply the specific mail disposal system according to the addressee, otherwise judge this portal server name whether with predefined one or several names of addressee in whether have identical, if have, just receive; If no, being judged to be may be spam, and then the setting according to the addressee receives or rejects, and this address is given automatically reply the specific mail disposal system simultaneously.
5) mail server (SMTP) increases the disposal system that a cover automatically replies specific mail;
6) this program that automatically replies the specific mail disposal system is:
[1] at first checks according to different type of error whether the user is provided with and allow such mistake to automatically reply,, otherwise continue next step if not then simply return.
[2] judge that at first this return address whether in the tabulation that sends specific mail or specific mail to be sent, if just this address is not added tabulation to be sent, otherwise just simply returns.
[3] being provided with according to user and system with particular picture and the synthetic specific mail of group of text.
[4] this particular picture is meant with the user E-MAIL address of correct virtual portal server name and arrives JPEG or GIF picture, and discerns automatically to prevent computer through certain processing, and this picture leaves on the memory device of mail server.
2, according to the said method that prevents spam of claim 1, it is characterized in that:
1) position of virtual server name is the domain name part of address addresses of items of mail, promptly is right after after the @ symbol, before the domain name, is connected with original domain name with symbol.
2) everyone sets character string and forms this virtual portal server name by system's specific character string and addresses of items of mail, and connects by the specific separating character of system.
3) each user can have a plurality of virtual portal server names simultaneously.
3, according to the description of claim 2, this virtual portal server name is participated in specifying by the user, and can revise and on-fixed at any time, and can close and open under system's permissive condition.
4, according to the description of claim 1, this system allows addresses of items of mail, and everyone is provided with the modification privileged account at any time, and this privileged account comprises addresses of items of mail and territory.
5, describe according to claim 1, this system allows addresses of items of mail, and everyone is provided with whether receive or reject the mail that does not meet the requirement of portal server name, also allows the user to be provided with and whether automatically correct information is replied to the sender who sends the error portal server name or do not contain the portal server name.
6, to describe according to claim 1, this system represents different inlets with virtual portal server name, and wherein the character of everyone appointment of addresses of items of mail strings the password effect of this inlet in virtual portal server name.
7, according to claim 1,2,6 descriptions, feature is that the addresses of items of mail of different inlets can require to have different authorities and function according to the difference of system.
8, to describe according to claim 1, this system also comprises the privileged account of a system and the privileged account that each user is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410017570 CN1564167A (en) | 2004-04-04 | 2004-04-04 | Method of dealing with refuse mail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410017570 CN1564167A (en) | 2004-04-04 | 2004-04-04 | Method of dealing with refuse mail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1564167A true CN1564167A (en) | 2005-01-12 |
Family
ID=34479045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410017570 Pending CN1564167A (en) | 2004-04-04 | 2004-04-04 | Method of dealing with refuse mail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1564167A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1889108B (en) * | 2005-06-29 | 2010-12-15 | 腾讯科技（深圳）有限公司 | Method of identifying junk mail |
| CN101299729B (en) * | 2008-06-25 | 2011-05-11 | 哈尔滨工程大学 | Method for judging rubbish mail based on topological action |
| CN101499981B (en) * | 2009-03-19 | 2014-10-22 | 哈尔滨工程大学 | E-mail gateway type systematic mail account maintaining method |
| CN104462062A (en) * | 2014-12-11 | 2015-03-25 | 珠海金山网络游戏科技有限公司 | Text anti-spam method |
| CN106850560A (en) * | 2016-12-26 | 2017-06-13 | 沈阳通用软件有限公司 | A kind of method that internet mail sends safely and audits |
| CN110348822A (en) * | 2019-07-18 | 2019-10-18 | 张统刚 | A kind of intelligent message address approach facilitating spam prevention |
| CN115801719A (en) * | 2022-12-28 | 2023-03-14 | 中国联合网络通信集团有限公司 | Mail processing method, device, equipment and readable storage medium |
-
2004
- 2004-04-04 CN CN 200410017570 patent/CN1564167A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1889108B (en) * | 2005-06-29 | 2010-12-15 | 腾讯科技（深圳）有限公司 | Method of identifying junk mail |
| CN101299729B (en) * | 2008-06-25 | 2011-05-11 | 哈尔滨工程大学 | Method for judging rubbish mail based on topological action |
| CN101499981B (en) * | 2009-03-19 | 2014-10-22 | 哈尔滨工程大学 | E-mail gateway type systematic mail account maintaining method |
| CN104462062A (en) * | 2014-12-11 | 2015-03-25 | 珠海金山网络游戏科技有限公司 | Text anti-spam method |
| CN106850560A (en) * | 2016-12-26 | 2017-06-13 | 沈阳通用软件有限公司 | A kind of method that internet mail sends safely and audits |
| CN110348822A (en) * | 2019-07-18 | 2019-10-18 | 张统刚 | A kind of intelligent message address approach facilitating spam prevention |
| CN110348822B (en) * | 2019-07-18 | 2023-05-19 | 张统刚 | Intelligent mail address method for helping junk mail prevention |
| CN115801719A (en) * | 2022-12-28 | 2023-03-14 | 中国联合网络通信集团有限公司 | Mail processing method, device, equipment and readable storage medium |
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