JP2002163216A - Address reliability evaluation system and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an address reliability evaluation system and method for evaluating an address existent in the Internet and informing the evaluation information. SOLUTION: This address reliability evaluation system is provided with a first separating part for receiving a report mail related to the evaluation on an address, and separating the contents of the report mail into an address and report contents, an evaluating part for calculating the evaluation points of the address according to the report contents, an address reliability data base for storing the address and the evaluation point of the address with a correspondence to each other, a receiving part for receiving an evaluation point transmit request from a user, an extract part for extracting a corresponding evaluation point from the address reliability data base according to the evaluation point transmit request, and a transmitting part for transmitting the extracted evaluation point to the user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the security of the Internet, and more particularly to an address credibility evaluation system and method for evaluating the credibility of an e-mail address.

[0002]

2. Description of the Related Art With the spread of e-mail, malicious e-mails such as viruses, spam, chains, etc., and e-mails, which are transmitted in good intentions but increase in number, hinder user's convenience, are rapidly increasing. It has increased. In addition, an increasing number of users use the anonymity to slander without reason.

[0003]

However, no effective means has been proposed to prevent the above-mentioned e-mails from hindering the convenience due to the wide area, the broadcast, and the anonymity of e-mails. . Since the Internet is based on the interconnection of computers maintained by well-meaning administrators, security may be disabled by malicious users depending on the management status of each computer, and the source of the above mails Often becomes.

[0004] It is practically impossible to prevent the transmission of the aforementioned malicious mail or so-called junk mail.
Therefore, the recipient must take some action. For example, it has been practiced not to receive mail from a specific address (URL) for transmitting junk mail or the like. This method rejects reception after a certain point in time when junk mail is repeatedly sent, and has a considerable effect. However, this method has a problem that it cannot be dealt with until after the mail is received. Most sites (servers), on the other hand, do not cause problems, and some specific sites do. If so, by rejecting the mail from the specific site in advance, it is possible to prevent reception of unsolicited mail and the like. To do that, you need to get information about the site that is causing the problem. From such a viewpoint, it is very significant to perform the evaluation for each server and / or address (URL).

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to evaluate a server and / or an address (URL) existing on the Internet and to notify an evaluation information of the address. And a method.

[0006]

An address credibility evaluation system according to the present invention receives a report mail relating to address evaluation, and separates the contents of the report mail into an address and a report content; An evaluation unit that calculates an evaluation point of the address based on the contents of the declaration, an address credit database that stores the address and the evaluation point of the address in association with each other, and a receiving unit that receives an evaluation point transmission request from a user. An extraction unit for extracting a corresponding evaluation point from the address credibility database based on the evaluation point transmission request, and a transmission unit for transmitting the extracted evaluation point to the user.

[0007] An address credibility evaluation system according to the present invention provides a declaration page providing unit for providing a declaration page relating to address evaluation on a computer network, and a first unit for separating the content written on the declaration page into an address and a declaration content. A separating unit, an evaluation unit that calculates an evaluation point of the address based on the contents of the declaration, an address credibility database that stores the address and the evaluation point of the address in association with each other, and an evaluation point transmission request from a user. A receiving unit that receives the evaluation points; an extraction unit that extracts corresponding evaluation points from the address credibility database based on the evaluation point transmission request; and a transmission unit that transmits the extracted evaluation points to the user.

Preferably, the apparatus further comprises a second separating section for separating the address separated by the first separating section into an address section and a domain section.
An evaluation point is stored for each of the address part and the domain part.

Preferably, the apparatus further comprises an evaluation rank judging section for ranking the evaluation points based on the average value and the standard deviation of the entire evaluation points, and the address credit database stores the evaluation points together with or instead of the evaluation points. The judgment result of the evaluation rank judgment unit is stored.

[0010] Preferably, a clock device is provided, and the address credibility database stores the evaluation points together with the evaluation points based on the output of the clock device in chronological order.

Preferably, the evaluation unit includes an evaluation table in which data including the contents of the declaration and weighting of the number of times of declaration are stored in advance.

Preferably, the declaration page providing unit includes a first entry unit for entering an address to be declared,
A second entry section for entering the contents of the declaration and a third entry section for entering how to obtain the evaluation points are provided.

Preferably, the second entry section includes a check box for specifying the contents of a declaration including a virus mail, harassment mail, chain mail, and junk mail;
A column for entering the number of receptions is included.

[0014] Preferably, the third entry section includes a check box for selecting whether the calculation of the evaluation points is performed automatically or manually, and a point entry field for manual calculation.

[0015] Preferably, the first separating unit receives the report mail, which is a response to a questionnaire issued by the system, from a domain administrator.

[0016] Preferably, the first separating unit receives the declaration mail from a domain administrator or an electronic mail user.

Preferably, when changing the evaluation point,
The previous evaluation point, evaluation rank, and evaluation change date and time are also recorded in the address credibility database.

[0018] Preferably, the evaluation points are recorded in the address credibility database by dividing the evaluation points into a layer for assigning points to be changed by declaration and a layer for assigning ranks based on the standard deviation of the points.

Preferably, the evaluation point extracting unit specifies and extracts an evaluation point range from the address credibility database.

[0020] Preferably, a domain evaluator is provided which counts the evaluation points of the registered addresses for each domain part and returns the evaluation points of the domain in response to an inquiry.

Preferably, the evaluation unit does not use information about the same address from the same sender for the evaluation.

Preferably, the reply transmission unit transmits data relating to a time change of the address evaluation.

Preferably, the present invention further comprises a filer reliability evaluation unit for evaluating the reliability of the filer, wherein the evaluation unit weights the contents of the reporter when the evaluation result of the filer reliability evaluation unit is high. Raise the score and calculate the evaluation score of the address based on the contents of the declaration.

An address credit evaluation method according to the present invention includes the steps of registering an address to be evaluated in an address server, lowering the evaluation point of the registered address upon receiving negative information, and registering upon receiving positive information. And a step of receiving information from the user and returning information on the evaluation points of the address.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 of the Invention Hereinafter, a system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the overall configuration of this system. Reference numeral 1 denotes a first separation unit that receives a report mail from a user and separates the mail into a report content and a mail address. For example, when the user receives a virus-email, the user reports to the system that the virus-email was received from a specific mail address. Then, the first separating unit separates the address from the content of “mail with virus”.

Reference numeral 2 denotes an evaluation unit that displays the contents of the report sent from the first separation unit on the display device 4 and sends the evaluation points input by the operator via the input device 5 to the database. In the above-described example, "mail with virus" is displayed on the display device 4, and the operator inputs an evaluation score according to the maliciousness of the email, for example, "-3" assuming that a bad evaluation is represented by minus. In order to facilitate the input operation by the operator, the display device 4 displays the message "In the case of a mail with a virus, the evaluation point is -3 or less. The evaluation point is further lowered depending on the type of virus. For example, in the case of an XXX virus, -4. In the case of YYY virus, -5. "Is displayed. This evaluation point reference information is created in the evaluation unit 2. Evaluation section 2
Does not use this information for evaluation when information is provided for the same email address from the same sender. This is to ensure the objectivity of the information. Specifically, the evaluation unit 2 has a list of senders and e-mail addresses related to information provision therein, and compares the report e-mail with this to determine whether to use the e-mail for evaluation.

Reference numeral 3 denotes a second separating section for separating the mail address sent from the first separating section 1 into an address section and a domain section. The address part and the domain part separated by the second separating unit 3 are managed in the mail address credibility database 6 together with the evaluation points. The reason for separating the mail addresses is that, in this way, not only the evaluation for the address but also the number and evaluation points of the unwanted addresses of the domain to which the address belongs are counted, and the evaluation of the entire domain is possible.

Note that the above description starts when the user actually receives the malicious mail.
For email addresses that are suspected to be malicious in the future,
Registration in the database 6 can be requested. For example,
If another person has received a malicious e-mail but the e-mail address has not been registered yet, the user requests that e-mail address be registered as a monitored address, and when the e-mail is actually received from that address, the user You can inquire about the evaluation of. If the evaluation is bad, the user can take defensive measures in advance by, for example, applying for refusal of reception to his / her domain administrator without reading the mail.

In such a case, in response to a mail address registration request from the user, the system directly registers the address in the database 6 and waits for a report mail for the address. In this case, a predetermined evaluation point may be given by the input device 5. The information in this case is so-called hearing information and its reliability is not so high. Evaluation points are determined from such a viewpoint. The address has, for example, "-
A rating of "1" is given.

Reference numeral 7 denotes a clock device that outputs calendar information and / or time information in order to enable the evaluation of the declared e-mail address to be stored in chronological order. As a result, the user can know not only the latest evaluation of the specific address but also a change in the evaluation of the address within a certain period in the past. See Figure 7 for details.
It will be described later with reference to FIG.

Reference numeral 8 denotes an evaluation rank judging unit for evaluating the credit of the registered mail address. Here, the e-mail address evaluation points are ranked based on the deviation (standard deviation) from the average evaluation point of the addresses registered in the database. For example, it is assumed that the evaluation point of the declared address is -5 points (lower limit -10 points). Assuming that the latest average evaluation point of all the registered addresses in the database is −1, the deviation is 4 and the rank B is assigned. That is, it means that the credibility of the registered address is relatively low among all the registered addresses. In this case, the comparison target is not only the latest average score of all registered addresses, but also the average score of all registered addresses obtained over a certain period, and the field to which the address belongs (individual, company, provider, direct mail, etc.). ) Or the average of all addresses in the field where the address was declared (virus, junk, harassment, etc.).

Reference numeral 11 denotes an inquiry receiving unit for receiving an inquiry about evaluation of a specific mail address from a user. Reference numeral 9 denotes an evaluation point extraction unit that extracts an evaluation point related to the address from the database based on the inquiry. If the inquiry is not for a specific mail address but for evaluation of a specific domain, the domain evaluation unit 10 comprehensively evaluates the evaluation points of the registered addresses belonging to the domain. Reference numeral 12 denotes an answer transmission unit that sends answers from the evaluation point extraction unit and the domain evaluation unit to the user.

As an inquiry about the evaluation,
It is also possible to inquire for items having low evaluation scores, to answer a predetermined number in order from the one with the lowest system, and to inquire for each genre of sites such as search sites, music sites, and shopping sites.

The information on the registered address obtained as described above is stored in the database 6 in a format as shown in FIG.
Registered in. The e-mail address "name@company.co.jp" for which the user has made a declaration or registration request is registered separately in an address part "name" and a domain part "company.co.jp". The latest evaluation point xx, the evaluation rank AA assigned according to the evaluation point, the previous evaluation point yy and the evaluation rank AB, and the evaluations earlier than that are also recorded in the database 6 in a time series. Also, the date and time of the initial registration yyyy.m
m.dd.hh.mm and evaluation change date and time yyyy.mm.dd.hh.mm are also recorded. Based on the registration information, a necessary part for which an inquiry has been made is extracted and an answer is made.

FIG. 3 is a flowchart for explaining the procedure of this system. To receive the rating information service from this system, the domain must subscribe to this service. On the other hand, an address declaration and registration request can be made by an e-mail user of the general public or an uncontracted domain administrator. However, inquiries regarding registration information are limited to e-mail users and administrators belonging to the contract domain.

In addition to the case where the user makes an address declaration and registration request voluntarily from the user, the system sends a questionnaire to the concerned person (server) and the service provider or contract domain of the system related to this system is sent. Can also be realized in a form that answers the questionnaire. As a result, it is possible to more efficiently collect information about a problematic mail address.

First, a specific mail address is registered in a mail address server (this system) (initial registration).
(S1). Next, there is an inquiry about the evaluation of the address from the contract domain A subscribed to the service of this system (S2). A reply is made from the server regarding the evaluation of the address (S3). When negative information is provided from the information provider for the registered address, the evaluation point of the address decreases (S4), and when the positive information is provided, the evaluation point increases (S5). When there is an inquiry about the address from another contract domain B (S6), the latest evaluation and the information on the fluctuation of the evaluation so far are provided (S7).

FIG. 4 is a flowchart for explaining a procedure for registering a mail address in this system.
First, an e-mail address for which a declaration or a registration request has been made in the initial registration is registered in the database (S10). If there is a new report mail (S11; YES),
It is confirmed whether the address to be declared is a registered address (S12). If not registered, initial registration is performed (S10). If registered, the address and contents of the report mail are separated (S10).
13). The separated mail address is further separated into an address part and a domain part (S14). In addition, the content of the separated declaration is given an evaluation score according to the content (S15). Based on the evaluation points, the credit rating of the mail address is ranked based on the standard deviation (S16). The obtained evaluation points and evaluation ranks are registered in the database (S17), and the registration procedure is completed.

FIG. 5 is a flowchart for explaining a procedure for inquiring and replying to a mail address in this system. With respect to the mail address registered as described above, the information required by the user of the contract domain can be obtained. For example, FIG. 5A shows a case where an inquiry is made about the evaluation of a specific mail address. First, the system receives an inquiry about the evaluation of a specific mail address (S20). In response to this inquiry, an evaluation point and an evaluation rank of the mail address are extracted (S21). The information is transmitted to the inquiry sender as a response (S22).

As another example, it is possible to make an inquiry by designating a range of evaluation points without specifying an individual mail address (FIG. 5B). When such an inquiry is received (S30), a mail address having an evaluation point within the designated range is extracted (S31) and transmitted as a reply (S32).

FIG. 6 is a flowchart for explaining an inquiry and answer procedure for each domain instead of a mail address. When there is an inquiry about a specific domain (S40), the evaluation points of the registered mail addresses belonging to the domain are totaled (S41), and the evaluation points of the domain are transmitted as a response (S42). of course,
As in the case of FIG. 5B, it is also possible to specify a range of evaluation points and make an inquiry about a domain.

It is needless to say that, besides the above example, a reply can be made to any inquiry regarding registration information. For example, it is conceivable to combine the above example with the designation of a specific period, the designation of a fluctuation in evaluation, the designation of the number of declarations, the designation of the number of inquiries, and the like.

FIG. 7 is a graph showing the change over time of the evaluation of the registered address. The (E) axis shows the evaluation points, and the (t) axis shows the passage of time. First, at t = R, a mail address is registered based on a user request. At this point, since the address is not evaluated, E = 0. Then t = P1
Suppose that there was a positive declaration about the address, such as an address that provides very useful information. Then, the evaluation point increases by ΔE ₁ minute. In addition, if t = P2, and if there is a positive declaration, the evaluation point further increases. However, at t = N1, mail from that address, such as an annoying number is too large, and that there was a negative declaration, the evaluation point is lowered ΔE ₂ minutes. Further, when positive information is declared later at t = P3, the evaluation point increases. By knowing the change of the evaluation in a time series in this way, the user can refer to information such as, for example, that a good address in the past has recently lost its evaluation.

The graph shown in FIG. 7 is created by the domain evaluation unit 10 shown in FIG. 1 in response to a request from the user, and transmitted to the user by the response transmission unit 12.

Embodiment 2 of the Invention Hereinafter, another embodiment of the present invention will be described with reference to FIGS. In the first embodiment of the invention, the contents of the report mail are individually judged by the operator using the display device 4 and the input device 5, and the evaluation points are attached. I can take it.

FIG. 8 is a block diagram of a system according to Embodiment 2 of the present invention. Report page provider (server)
13 provides the mail address declaration page of FIG. The contents of the declaration page are also sent to the evaluation unit 2. The evaluation unit 2 obtains an evaluation point of the transmitted content while referring to the content of the evaluation table 2a. The evaluation table 2a stores in advance data such as the contents of the declaration and the weighting of the number of times. An example of the contents is as follows. Report contents Evaluation points Weight Virus -5 -5 (per time) Harassment -5 -5 (same as above) Chain 3-1 (same as above) Junk -1 -1 (same as above) Useful information +1 +1 (same as above)

FIG. 9 is a diagram showing a screen configuration when a user makes a declaration from the home page of this system. Items necessary for filing a mail address are displayed on the user screen 101. In a reference numeral 102, a mail address to be declared is input. Next, the declaration contents section 103
Enter the contents of the declaration. For example, when the user has received a virus-containing mail once from the address, the user checks the virus item button 104 and inputs the number of times “1” into the input space 105 next to the button. If the contents of the declaration do not fall into any of the categories, check the "Other" button and enter the specific contents in the comment field 106.
Can be written to. In this comment section,
You can also comment on items other than the "other" items, such as the effects of the virus you received and the contents of junk mail.
Thus, by providing the comment section 106,
In addition to being able to declare e-mails other than the specified category, it is also possible to inform about the characteristics of e-mail that cannot be expressed only by category and frequency.

Next, the user can input an evaluation point in the evaluation point section 7. At that time, explanation of how to assign evaluation points 10
See FIG. The explanation 108 shows a specific explanation for giving an evaluation score according to the state of the received mail. If the user wants the rating to be automatically assigned to the contents of the declaration, the user checks the button 109 of the "automatic" item. If the user himself / herself wants to give an evaluation point, he checks the "manual" item. In this case, the score is written in the input space 110 next to the point.

In the case of automatic, the evaluation unit 2 automatically creates evaluation points by referring to the table. In this case, the display device 4 and the input device 5 are unnecessary. An example of the operation of the evaluation unit 2 will be described. When the content of the report mail receives a mail containing a virus and / or an attached file from a certain address a total of five times, first, the evaluation score of the virus is read from the table. The score is multiplied by the number of times to obtain an evaluation point. For example,
If the virus score is "-5" and the number of times is 5,
The evaluation point is “−25”. In short, the evaluation unit 2 reads out the corresponding evaluation points based on the contents of the declaration, and weights them by the number of times.

Finally, the user inputs his / her mail address in the input space 111 to identify the user himself, checks the send button 112 and makes a declaration.

FIG. 10 is a flowchart showing a registration procedure in the case of passing through the declaration page of FIG. First, when a declaration is made via the declaration page (S50; YE)
S), it is checked whether the address to be declared is a registered address (S51). If it has not been registered (S51; NO), the initial registration is performed (S5).
2) If it is registered (S51; YES), the address and the content of the report mail are separated (S5).
3). The separated mail address is further separated into an address part and a domain part (S54). Further, the contents of the separated declaration are classified into categories according to the user's input (S55). Next, it is confirmed whether the user desires automatic evaluation or manual evaluation (S56). If an automatic evaluation is desired (S56; YES), an evaluation point assigned in advance according to the category and the number of declaration contents is given (S57). In the case of manual operation, (S
56; NO), an evaluation point input by the user is added (S)
58). Based on the evaluation points, the creditworthiness of the mail address is ranked based on the standard deviation (S5).
9). The obtained evaluation points, evaluation ranks, and comment contents are also registered in the database (S60), and the registration procedure is completed.

The following procedures are the same as those in the first embodiment of the present invention, and therefore will not be described. If there is a declaration in the "Others" category and there is a request for automatic evaluation, the operator assigns an evaluation point based on the input content in the comment column instead of the evaluation point assigned in advance. A method is also possible. In this case, the registration procedure is the same as that of the first embodiment of the invention described with reference to FIG.

Further, since the comment is also included in the registered contents, it is possible to include, in response to the inquiry, a comment on the corresponding address in the answer.

Further, since the mail address of the user is also recorded, it is possible to restrict the report from the user who has a very large number of reports and to secure information from a wide range of users.

As described above, according to the system of the embodiment of the present invention, it is possible to centrally store the e-mail addresses that behave maliciously on the network and to provide the evaluation information.

In the first and / or second embodiments of the present invention, the present system includes a filer reliability evaluation unit for evaluating the reliability of the filer, and the evaluation unit includes the filer reliability evaluation unit. When the evaluation result is high, the weight of the content of the reporter may be increased, and the evaluation score of the address may be calculated based on the content of the report.

With such a configuration, it is possible to evaluate the reliability of the filer and evaluate the mail address based on the reliability. That is, in the case of a report from a reliable evaluator, a more accurate evaluation can be performed by setting the weight of the reliability higher than other reporters.

For example, the weights of the standard evaluation points are as follows (weights (number of times) when damages are repeatedly encountered are omitted). Contents of report Evaluation points Weight Virus -5 1 Harassment -5 1 Chain -3 1 Junk -11 11 Useful information +1 11

If the filer is, for example, a person who has a past track record, a person who has previously requested monitoring, or a scholar, researcher, public servant, other intellectual, or celebrity, etc. As follows. Contents of report Evaluation points Weight Weighted evaluation points Virus -5 2-10 Harassment -5 2 -10 Chain -3 2 -6 Junk -1 2 -2 Useful information +1 2 +2

On the other hand, if the filer is anonymous, has no past performance, or has no good performance, the following applies. Report contents Evaluation points Weight Weighted evaluation points Virus -5 0.5 -2.5 Harassment -5 0.5 -2.5 Chain -3 0.5 -1.5 Junk -1 0.5 -0.5 Useful Information +1 0.5 +0.5

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, this is done.

In this specification, means does not necessarily mean physical means, but also includes a case where the function of each means is realized by software.
Further, the function of one unit may be realized by two or more physical units, or the function of two or more units may be realized by one physical unit.

[0063]

According to the present invention, a site that relays or receives mail can restrict the reception or transmission of the mail address based on the address information provided by the present system. As a result, the use of malicious e-mail addresses is restricted, and the convenience of the entire user can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall configuration of a system according to a first embodiment of the present invention.

FIG. 2 shows an example of a recording format in a mail address server of the system according to the first embodiment of the present invention.

FIG. 3 is a flowchart illustrating an overall processing procedure of the system according to the first embodiment of the present invention.

FIG. 4 is a mail address registration flowchart illustrating a procedure of the system according to the first embodiment of the present invention.

FIG. 5 is a flowchart of an inquiry and an answer regarding a mail address for explaining a procedure of the system according to the first embodiment of the present invention.

FIG. 6 is a flowchart of a domain inquiry and response explaining a procedure of the system according to the first embodiment of the present invention;

FIG. 7 shows a time-series display example of evaluation points of a certain mail address server by the system according to the first embodiment of the present invention.

FIG. 8 is a diagram showing an overall configuration of a system according to Embodiment 2 of the present invention.

FIG. 9 shows a configuration of a mail address declaration page by the system according to the second embodiment of the present invention.

FIG. 10 is a mail address registration flowchart for explaining a procedure of the system according to the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st separation part 2 Evaluation part 3 2nd separation part 6 E-mail address credibility database 8 Evaluation rank judgment part 9 Evaluation point extraction part 10 Domain evaluation part 11 Inquiry reception part 12 Reply transmission part

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) H04L 12/58 100 H04L 12/58 100Z

Claims (19)

[Claims] A first separating unit that receives a report mail relating to the evaluation of an address and separates the contents of the report mail into an address and a report content; and an evaluation unit that calculates an evaluation score of the address based on the report contents. An address credibility database that stores the address and the evaluation point of the address in association with each other; a receiving unit that receives an evaluation point transmission request from a user; and a correspondence from the address credibility database based on the evaluation point transmission request. An address credibility evaluation system comprising: an extraction unit that extracts an evaluation point to be transmitted; and a transmission unit that transmits the extracted evaluation point to the user. 2. A report page providing unit for providing a report page related to address evaluation on a computer network; a first separating unit for separating the content written on the report page into addresses and report contents; An evaluation unit that calculates an evaluation point of the address based on the address; an address credibility database that stores the address and the evaluation point of the address in association with each other; a receiving unit that receives an evaluation point transmission request from a user; An address credibility evaluation system comprising: an extraction unit that extracts a corresponding evaluation point from the address credibility database based on a point transmission request; and a transmission unit that transmits the extracted evaluation point to the user. 3. The apparatus according to claim 1, further comprising a second separating unit configured to further separate the address separated by the first separating unit into an address unit and a domain unit, wherein the address credibility database determines an evaluation score for each of the address unit and the domain unit. The address credibility evaluation system according to claim 1, wherein the address credibility is stored. 4. An evaluation rank determining unit that ranks the evaluation points based on an average value and a standard deviation of all the evaluation points, wherein the address credibility database includes the evaluation points together with or instead of the evaluation points. 3. The address credibility evaluation system according to claim 1, wherein a judgment result of the evaluation rank judgment unit is stored. 5. A clock device, wherein the address credibility database stores, in chronological order, evaluation times together with the evaluation points based on an output of the clock device. The described address credit rating system. 6. The address credibility evaluation system according to claim 1, wherein the evaluation unit includes an evaluation table for storing data including the contents of the declaration and the weight of the number of times of the declaration in advance. 7. The report page providing section is for entering a first entry section for entering an address to be declared, a second entry section for entering the contents of the report, and for entering a method for obtaining an evaluation point. 3. The address credibility evaluation system according to claim 2, further comprising a third entry section. 8. The method according to claim 1, wherein the second entry section includes a check column for specifying the contents of the declaration including virus mail, harassment mail, chain mail, and junk mail, and a column for entering the number of receptions. The address credit evaluation system according to claim 7. 9. The method according to claim 9, wherein the third entry section includes a check box for selecting whether to calculate the evaluation score automatically or manually, and a score entry column for manual calculation. Item 7. The address credit evaluation system according to Item 7. 10. The address credit evaluation system according to claim 1, wherein the first separating unit receives the report mail, which is a response to a questionnaire issued by the system, from a domain administrator. 11. The address credit evaluation system according to claim 1, wherein the first separating unit receives the report mail from a domain administrator or an electronic mail user. 12. The address credit evaluation according to claim 1, wherein when the evaluation point is changed, a previous evaluation point, an evaluation rank, and an evaluation change date and time are recorded together in the address credit database. system. 13. The address credibility database according to claim 11, wherein the evaluation points are divided into a layer for assigning points to be changed by filing and a layer for assigning ranks based on the standard deviation of the points. The address credibility evaluation system according to claim 1 or 2. 14. The address credit evaluation system according to claim 1, wherein the evaluation point extracting unit specifies and extracts an evaluation point range from the address credit database. 15. The apparatus according to claim 1, further comprising: a domain evaluation unit that totals evaluation points of registered addresses for each domain part and returns a domain evaluation point in response to an inquiry. Address credit rating system. 16. The address credit evaluation system according to claim 1, wherein the evaluation unit does not use information on the same address from the same sender for the evaluation. 17. The address credibility evaluation system according to claim 1, wherein the reply transmission unit transmits data relating to a time change in the evaluation of the address. 18. A filer reliability evaluation unit for evaluating the reliability of the filer, wherein the evaluation unit increases the weight of the report content of the filer when the evaluation result of the filer reliability evaluation unit is high. 3. The address credibility evaluation system according to claim 1, wherein an evaluation point of the address is calculated based on the contents of the declaration. 19. A step of registering an address to be evaluated in an address server, a step of lowering an evaluation point of the registered address in response to negative information, and a step of reducing an evaluation point of the registered address in response to positive information. An address credit evaluation method, comprising the steps of: receiving an inquiry from a user and returning information on an evaluation point of the address.