WO2005101770A1 - 迷惑メール処理装置およびその方法 - Google Patents
迷惑メール処理装置およびその方法 Download PDFInfo
- Publication number
- WO2005101770A1 WO2005101770A1 PCT/JP2004/004923 JP2004004923W WO2005101770A1 WO 2005101770 A1 WO2005101770 A1 WO 2005101770A1 JP 2004004923 W JP2004004923 W JP 2004004923W WO 2005101770 A1 WO2005101770 A1 WO 2005101770A1
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- WIPO (PCT)
- Prior art keywords
- domain name
- processing
- junk
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/21—Monitoring or handling of messages
- H04L51/212—Monitoring or handling of messages using filtering or selective blocking
Definitions
- the present invention relates to a junk mail processing apparatus and method for preventing a system failure or the like caused by mass transmission of junk mail.
- a malicious user can create an e-mail address by combining alphanumeric characters without considering whether it exists or not, or an unspecified number of e-mail addresses on the network
- a large amount of e-mails may be sent all over the network to send advertisements without their consent.
- Such inappropriate and massively transmitted e-mails are also commonly referred to as spam mails.
- Non-Patent Document 1 discloses a general countermeasure against unsolicited email in an email gateway server.
- Non-Patent Document 2 discloses a method of identifying unsolicited email based on traffic per unit time.
- Non-Patent Document 2 ht tp: //www.sendma i l. com / products / msmgr_f 1 owcon t ro 1.shtml Disclosure of the invention
- the present invention has been made in view of the above-described background, and has as its object to provide an improved junk mail processing apparatus and method for preventing trouble due to junk mail.
- a spam mail processing apparatus comprises: a receiving unit for receiving an e-mail including an IP address corresponding to a source domain name; A domain name investigating unit for investigating a domain name corresponding to the IP address, a statistical processing unit for statistically processing the domain name obtained by the investigation, and an e-mail other than the unsolicited e-mail is included as information of a sender. A first domain name storage unit for storing the domain name of the first, and an e-mail to be processed as spam among the domains obtained as a result of the investigation based on the result of the statistical processing. Second domain name storage means for storing a second domain name corresponding to the IP address included as the information of the electronic mail; and Junk mail processing means for processing an e-mail including an IP address corresponding to the stored second domain name other than the first domain name as junk mail.
- the junk mail processing means sends an e-mail other than the junk mail and an e-mail other than the processed junk mail to a destination e-mail communication system.
- the statistical processing means obtains, as the statistical processing, a frequency of receiving an e-mail including each of the domain names obtained by the survey, and the second domain name storing means, A domain name included in the e-mail at a certain frequency or higher is stored as the second domain name.
- the junk mail processing means discards the junk mail or transmits the junk mail to a destination electronic mail communication system with a delay.
- the spam mail processing method includes receiving e-mails each including an IP address corresponding to a source domain name, and examining a domain name corresponding to the IP address of the received e-mail, Statistical processing is performed on the domain names obtained by the survey, a first domain name that includes e-mail other than the unsolicited e-mail as information of a sender is stored, and based on a result of the statistical processing, In the obtained domain, a second domain name corresponding to an IP address included as information of a sender to be treated as spam is stored in the received e-mail message. An electronic mail including an IP address corresponding to the stored second domain name other than the stored first domain name is processed as junk mail.
- the program according to the present invention may further comprise a receiving step of receiving an e-mail including an IP address corresponding to the source domain name, and a domain name for checking the domain name corresponding to the IP address of the received e-mail.
- An adjustment step a statistical processing step of statistically processing the domain name obtained by the investigation, and a first domain name that stores a first domain name included as information of a sender of the e-mail other than the spam mail
- Based on the storage step and the results of the statistical processing described above, of the domains obtained as a result of the above-mentioned investigation correspond to the IP addresses that are to be processed as unsolicited e-mails and included as 'I blue information' of the sender
- a second domain name storing step of storing a second domain name to be executed, and the first stored in the received electronic mail.
- FIG. 1 is a diagram illustrating a configuration of a communication system to which a spam mail processing method according to the present invention is applied.
- FIG. 2 is a diagram illustrating an example of a hardware configuration of the PC, the GW server, and the like illustrated in FIG.
- FIG. 3 is a diagram showing a configuration of a spam mail processing program executed by the GW server shown in FIGS.
- FIG. 4 is a flowchart illustrating the processing (S10) of the BL management unit shown in FIG.
- FIG. 5 is a flowchart showing the processing (S12) of the unsolicited mail processing unit shown in FIG.
- FIG. 7 is a second communication sequence diagram showing the above.
- FIG. 1 is a diagram illustrating a configuration of a communication system 1 to which a spam mail processing method according to the present invention is applied.
- the communication system 1 includes an e-mail communication system 2 and a
- the IP addresses included in the A domain name system server (DNS server) 14 that answers the corresponding domain name is connected and communicable with each other.
- the e-mail communication system 2 consists of multiple computers (PCs) 20—l to 20 _m (m and n are integers of 1 or more) used by the user to send and receive e-mail, and a gateway (GW) server. 24 are connected via a network 200 such as a LAN or WAN.
- PCs computers
- GW gateway
- the electronic mail communication systems 10-1 to 10-n have the same configuration as the electronic mail communication system 2 (not shown).
- a plurality of components such as the e-mail communication system 10-1 to 10-n may be abbreviated as the e-mail communication system 10 or the like when indicated without specifying them.
- components that perform communication in the communication system 1, such as the DNS server 14, the PC 20, the GW server 24, and the e-mail communication systems 2, 10, may be collectively referred to as nodes.
- these components make communication by e-mail between the e-mail communication systems 2 and 10, and include e-mail communication from the e-mail communication system 10 in the e-mail. Spam sent to System 2 may be included.
- the GW server 24 of the e-mail communication system 2 processes the unsolicited mail from the e-mail communication system 10 and sends the e-mail
- a specific example is to prevent the occurrence of excessive traffic in the communication system 2 and the inconvenience to users.
- FIG. 2 is a diagram showing an example of a hardware configuration of the PC 20 and the GW server 24 shown in FIG.
- the PC 20 and the GW server 24 are provided with a CPU 120, a memory 122, a processing unit 12 including these components, an input / output including a display device and a keyboard, and the like.
- Device 1 24 recording device 1 26 that records and reproduces data to and from recording medium 128 such as HDD and CD device, and communication device 1 3 that communicates with other nodes via the network Consists of two.
- the PC 20 and the GW server 24 include components as computers that can communicate with other nodes via the network.
- IP1 to IPn are included as IP addresses (Internet Protocol Address) indicating the transmission source.
- IP address IP 1 ⁇ Yn is converted to a domain name X I. Y 1 to X n .Yn, and the DNS server 14 sends the domain name X 1.Y 1 to X ⁇ . Returns ⁇ .
- the domain name of the e-mail communication system 10 returned from the DNS server 14 to the GW server 24 of the e-mail communication system 2 X 1. Of the Yl to Xn.
- a network side (not shown) dynamically assigns an electronic mail to a computer (not shown) for sending an e-mail.
- 1P address It may change according to IP1 to IPn, and the portion of Y1 to Yn is constant regardless of the IP address dynamically assigned to the computer by the network side.
- the domain name indicates an invariable part of Yl to Yn in the domain name XI.Yl to Xn.Yn unless otherwise specified.
- 20 is given an I ⁇ address ⁇ ⁇ X (X 0 . ⁇ 0) similar to the I ⁇ address I ⁇ 1 to ⁇ ⁇ ⁇ , but these are not referred to in the following description.)
- FIG. 3 is a diagram showing a configuration of the junk mail processing program 26 executed by the GW server 24 shown in FIGS. 1 and 2.
- the GW server 24 executes, for example, a junk mail processing program 26 (FIG. 3) which is supplied to the GW server 24 via a recording medium, loaded into the memory 122 and executed, and performs other e-mail communication. Identifies whether the e-mail received from the system 10 is spam or not, and sends the e-mail identified as not spam to the destination PC 20 via the network 200 I do.
- a junk mail processing program 26 FIG. 3
- the GW server 24 discards the e-mail identified as unsolicited e-mail, or delays the e-mail until a time when network traffic is small, and
- the spam mail processing program 26 is designed to include a user interface (UI), a control unit 260, a reception unit 262, a domain name survey, and a management unit 264, Domain name database (DB) 266, statistical processing unit 268, blacklist (BL) management unit 270, blacklist (BL) DB272, whitelist (WL) management unit 274, whitelist (WL) DB276, spam mail It comprises a processing unit 278, a mail DB 280 and a transmission unit 282.
- UI user interface
- DB Domain name database
- DB Domain name database
- statistical processing unit 268 blacklist (BL) management unit 270
- blacklist (BL) DB272 blacklist (BL) DB272
- whitelist (WL) management unit 274 whitelist (WL) DB276, spam mail It comprises a processing unit 278, a mail DB 280 and a transmission unit 282.
- the UI / control unit 260 accepts the user operation of the GW server 24 on the input / output device 124 and outputs information indicating the user operation to each component of the junk mail processing program 26. I do.
- the UI ′ control unit 260 controls the processing of each component of the spam mail processing program 26 according to the accepted operation.
- the UI control section 260 displays information required by the user of the spam mail processing program 26 on the input / output device 124.
- the receiving unit 262 receives an e-mail sent from another e-mail communication system 10 to the PC 20 in the e-mail communication system 2 as a destination, and performs a domain name investigation / management unit 264, a statistical processing unit 268, and Output to the spam processing unit 278.
- the domain name survey management section 264 sends an inquiry including the IP address ( ⁇ ⁇ 1 to ⁇ ⁇ ) of the email communication system 10 included in the email input from the receiving section 262 as information indicating the sender. This is performed on the DNS server 14, and the domain names (XI. Y1 to Xn. Yn; FIG. 1) for the returned IP addresses ( ⁇ ⁇ 1 to ⁇ ⁇ ) are checked.
- the domain name survey / management unit 264 [also associates the I-address (I ⁇ 1- ⁇ ) contained in the e-mail with the domain name ( ⁇ 1- ⁇ ) obtained as a result of the survey.
- the domain name is stored in the DB 266 and managed.
- the domain name survey / management unit 264 uses the I address and the domain name ( ⁇ 1 to ⁇ ) stored in the domain name DB 266 for processing in the spam mail processing program 26 for other components. provide.
- the statistical processing unit 268 statistically processes the domain names ( ⁇ 1 to ⁇ ) included in the electronic mail input from the receiving unit 262, and outputs the result of the statistical processing to the BL management unit 270.
- the statistical processing unit 268 performs, as a statistical process, for example, how many times the receiving unit 262 receives e-mails including the domain names (Yl to Yn) of the e-mail communication system 10 of the transmission source over a certain period of time. Perform counting.
- the BL management unit 270 determines, for example, the number of domain names included in the received e-mails that are equal to or greater than a predetermined threshold value per a certain period of time, as the domain name (Yi) of the spam mail.
- the BL management unit 270 provides the domain name Y i stored in the BLDB 272 for processing in other components of the spam mail processing program 26.
- FIG. 4 is a flowchart illustrating the processing (S10) of the BL management unit 270 shown in FIG.
- the process (S10) shown in FIG. 4 is started, for example, at regular time intervals.
- step 100 the management 270 calculates the statistical processing result obtained by the statistical processing unit 268 (the number of each domain name included in the e-mail received per a certain time; the frequency of the domain name) Is obtained as one of the judgment targets.
- step 102 the BL management unit 270 determines whether the frequency of the domain name acquired in the processing of S100 is higher than a predetermined threshold.
- the BL management unit 270 proceeds to the process of S104, and otherwise, proceeds to the process of S106.
- step 104 the BL management unit 270 stores the domain name Y i determined to be included in the received e-mail at a frequency higher than the threshold value in the BLDB 272 as the junk mail domain name. , to manage.
- step 106 the BL management server B270 determines whether the determination has been completed for all the statistical processing results.
- the BL management unit 270 ends the process when the determination has been completed for all the statistical processing results, and otherwise returns to the process of S100.
- the receiving unit 262 may be a junk e-mail, and the e-mail communication system 2 with appropriate contents It is possible to exemplify a domain name of the e-mail communication system 10 which has a possibility of receiving the e-mail addressed to the PC 20 constantly for a certain time or more at or above the threshold value.
- the WL management unit 274 provides the domain name Y j included in the ⁇ -spam mail stored in the WLDB 276 for processing in other components of the spam mail processing program 26.
- the unsolicited mail processing unit 278 stores the e-mail received from the receiving unit 262 in the mail DB 280 and manages it.
- the unsolicited mail processing unit 278 performs processing on the electronic mail stored in the mail DB 280 according to the domain names Yi and Yj input from the BL management unit 270 and the WL management unit 274.
- the spam mail processing unit 278 refers to the IP address of the sender included in the e-mail stored in the mail DB 280, for example, to the domain name DB 266 via the domain name survey / management unit 264. By doing so, it is converted to the domain name of the sender.
- the unsolicited email processing unit 278 outputs an email including a domain name other than the domain name Yi of the unsolicited email as the source domain to the sending unit 282 as an email other than the unsolicited email.
- the spam processing unit 278 stores the domain name of the spam in the BLDB 272 as the domain name Y i of the spam and the domain name stored in the WLDB 276 as the domain name Y j of the non-spam mail as the source domain. Is sent to the sending unit 282 as e-mail that is not spam.
- the spam mail processing unit 278 stores, as the sender's domain, a domain name that is stored in the BLDB 272 as the domain name Y i of the spam mail and is not stored in the WLDB 276 as the domain name Y j of the non-spam mail. E-mails containing are treated as spam.
- the junk e-mail countermeasure processing by the junk e-mail processing unit 278 includes, for example, (1) whether the receiving unit 262 has received a number of e-mails including the domain name more than the above-mentioned threshold for a predetermined time. Regardless of the disposal,
- the transmission unit 282 transmits the e-mail input from the unsolicited e-mail processing unit 278 to the destination PC 20 via the network 200.
- FIG. 5 is a flowchart showing the processing (S12) of the unsolicited mail processing unit 278 shown in FIG.
- the processing of the junk mail processing unit 278 will be further described.
- the process shown in FIG. 5 is started, for example, every time the unsolicited email processing unit 278 receives an email and stores it in the mail DB 280.
- step 120 the unsolicited email processing 15278 obtains one email to be processed from the email DB 280.
- step 122 the unsolicited email processing 13278 determines whether or not the domain name corresponding to the IP address (IP1 to IPn; FIG. 1) included in the electronic mail is stored in the domain name DB 266. Judge. When the domain name corresponding to the IP address (IP1-1 to 1; FIG. 1) included in the e-mail is stored in the domain name DB 266, the spam mail management unit 278 performs the dos-in name search / management unit 264. The domain name is acquired through the process, and the process proceeds to S126. Otherwise, the process proceeds to S124.
- step 124 the spam mail processing unit 278 sends the domain name investigation / management unit 264 a domain name corresponding to the IP address (IP1 to IPn) included in the e-mail to be processed. (XI. Yl to Xn. ⁇ ).
- the spam processing unit 278 acquires the domain name obtained as a result of the investigation, and proceeds to the process of S126.
- step 126 the unsolicited email processing unit 278 determines whether the domain name of the email to be processed is the domain name Y i of the unsolicited email stored in the BLDB 272.
- the spam processing unit 278 proceeds to the process of S128, and otherwise, proceeds to the process of S128. Proceed to.
- step 128 the spam mail processing unit 278 determines whether the domain name of the electronic mail to be processed is the domain name Y j of the non-junk mail stored in the WLDB 276.
- the spam processing unit 278 proceeds to the processing of «; S130. Proceed to 132.
- step 130 the unsolicited email processing unit 278 processes the electronic mail to be processed as non-junk email, and outputs it to the transmission unit 282.
- step 132 the unsolicited email processing unit 278 processes the electronic mail to be processed as unsolicited email.
- step 134 the unsolicited e-mail processing unit 278 determines whether or not all e-mails to be processed have been processed.
- the unsolicited mailing processor 278 terminates the processing when all the e-mails to be processed have been processed, and otherwise returns to the processing of S120.
- Electronic mail is transmitted between the electronic mailing communication systems 2 and 10 (FIG. 1). If e-mails with the domain name Yi arrive at the GW server 24 of the e-mail communication system 2 from the other e-mail communication systems 10 at a certain frequency, the GW The spam mail processing program 26 running on the server 24 stores the domain name Yi as the domain name Yi of the spam mail (FIG. 4).
- the spam processing program 26 accepts and records the domain name Y j of the non-spam mail.
- the junk mail processing program 26 is a registered junk mail domain name Y i among the e-mails from the other e-mail communication systems 10 and registered as a non-junk mail domain name Y j. E-mails containing domain names that do not exist are treated as spam.
- the junk mail processing program 26 is registered as a domain name Y i of a registered junk mail and a domain name Y j of a non-spam mail among the e-mails from the other e-mail communication systems 10.
- E-mail containing the registered domain name, and e-mail not containing the registered spam e-mail domain name Y i are sent to the PC 20 via the network 200 as normal e-mail ( ( Figure 5).
- the e-mail destined for the PC 20 in the e-mail communication system 2 is sent to the transmission source (the e-mail communication system 10 In the domain name (X1.Yl to Xn. ⁇ ) corresponding to the IP address (IP1 to IPn;) included as information indicating the computer, the invariable part ( ⁇ :! to ⁇ ) ), It is possible to take appropriate and accurate processing for spam countermeasures. Further, according to the spam mail processing method according to the present invention, since the spam mail can be appropriately processed in the GW server 24, the burden on the user of the e-mail communication system can be reduced and the user can be comfortable with the user. A communication environment can be provided.
- the domain name X 1.Yl to Xn.n ⁇ of the email communication system 10 returned from the GW server 243 ⁇ 4S and the DNS server 14 is used.
- DHC P Dynamic Host Configuration Protocol
- unsolicited portions of Y1 to Yn are used to process unsolicited email, so I Iaddress ⁇ mail address
- the communication system to which the conventional method of processing unsolicited mail using the blacklist that includes the unsolicited email is applied, it is possible to more effectively prevent the trouble caused by unsolicited email.
- the present invention can be used to realize an appropriate countermeasure for annoying mail in a system for performing communication by electronic mail.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2004/004923 WO2005101770A1 (ja) | 2004-04-05 | 2004-04-05 | 迷惑メール処理装置およびその方法 |
CNA2004800426899A CN1939013A (zh) | 2004-04-05 | 2004-04-05 | 垃圾邮件处理装置及其方法 |
JP2006512194A JPWO2005101770A1 (ja) | 2004-04-05 | 2004-04-05 | 迷惑メール処理装置およびその方法 |
Applications Claiming Priority (1)
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PCT/JP2004/004923 WO2005101770A1 (ja) | 2004-04-05 | 2004-04-05 | 迷惑メール処理装置およびその方法 |
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WO2005101770A1 true WO2005101770A1 (ja) | 2005-10-27 |
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PCT/JP2004/004923 WO2005101770A1 (ja) | 2004-04-05 | 2004-04-05 | 迷惑メール処理装置およびその方法 |
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JP (1) | JPWO2005101770A1 (ja) |
CN (1) | CN1939013A (ja) |
WO (1) | WO2005101770A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010027660A3 (en) * | 2008-09-05 | 2010-05-27 | Microsoft Corporation | Automatic non-junk message list inclusion |
CN102255922A (zh) * | 2011-08-24 | 2011-11-23 | 山东师范大学 | 一种多层次的垃圾邮件智能过滤方法 |
US8239874B2 (en) | 2007-09-28 | 2012-08-07 | Microsoft Corporation | Inbox with focused messages according to categories |
JP2014063402A (ja) * | 2012-09-21 | 2014-04-10 | Kddi Corp | スパムメール検知装置、方法及びプログラム |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080292077A1 (en) * | 2007-05-25 | 2008-11-27 | Alcatel Lucent | Detection of spam/telemarketing phone campaigns with impersonated caller identities in converged networks |
KR101445116B1 (ko) * | 2010-09-28 | 2014-10-16 | 엠파이어 테크놀로지 디벨롭먼트 엘엘씨 | 통신 장치를 위한 데이터 필터링 |
CN109495372B (zh) * | 2017-09-11 | 2021-12-07 | 北京二六三企业通信有限公司 | 垃圾邮件的识别方法和装置 |
CN110417643B (zh) * | 2019-07-29 | 2021-10-08 | 世纪龙信息网络有限责任公司 | 邮件处理方法和装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0818582A (ja) * | 1994-06-30 | 1996-01-19 | Toshiba Corp | ネットワーク中継装置およびこれを使用したネットワークシステム |
JP2000353133A (ja) * | 1999-04-09 | 2000-12-19 | Internatl Business Mach Corp <Ibm> | 電子メッセージの望ましくない送信または受信を妨害するためのシステムおよび方法 |
JP2002244979A (ja) * | 2001-02-20 | 2002-08-30 | Nec Corp | 電子メールシステム |
JP2003046578A (ja) * | 2001-08-03 | 2003-02-14 | Nec Corp | メールサーバと電子メール転送システムおよび転送方法とプログラム |
-
2004
- 2004-04-05 JP JP2006512194A patent/JPWO2005101770A1/ja active Pending
- 2004-04-05 CN CNA2004800426899A patent/CN1939013A/zh active Pending
- 2004-04-05 WO PCT/JP2004/004923 patent/WO2005101770A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0818582A (ja) * | 1994-06-30 | 1996-01-19 | Toshiba Corp | ネットワーク中継装置およびこれを使用したネットワークシステム |
JP2000353133A (ja) * | 1999-04-09 | 2000-12-19 | Internatl Business Mach Corp <Ibm> | 電子メッセージの望ましくない送信または受信を妨害するためのシステムおよび方法 |
JP2002244979A (ja) * | 2001-02-20 | 2002-08-30 | Nec Corp | 電子メールシステム |
JP2003046578A (ja) * | 2001-08-03 | 2003-02-14 | Nec Corp | メールサーバと電子メール転送システムおよび転送方法とプログラム |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8239874B2 (en) | 2007-09-28 | 2012-08-07 | Microsoft Corporation | Inbox with focused messages according to categories |
WO2010027660A3 (en) * | 2008-09-05 | 2010-05-27 | Microsoft Corporation | Automatic non-junk message list inclusion |
US8380793B2 (en) | 2008-09-05 | 2013-02-19 | Microsoft Corporation | Automatic non-junk message list inclusion |
CN102255922A (zh) * | 2011-08-24 | 2011-11-23 | 山东师范大学 | 一种多层次的垃圾邮件智能过滤方法 |
JP2014063402A (ja) * | 2012-09-21 | 2014-04-10 | Kddi Corp | スパムメール検知装置、方法及びプログラム |
Also Published As
Publication number | Publication date |
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JPWO2005101770A1 (ja) | 2008-03-06 |
CN1939013A (zh) | 2007-03-28 |
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