JP2003242091A - E-mail reception refusing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device capable of uniformly refusing reception of e-mail. <P>SOLUTION: After a receiver of the e-mail registers transmitter ID of a transmitter desiring refusal of reception and transmitter ID of a transmitter desiring permission of reception as reception refusal data in accordance with a transmitter, the reception refusal registering number and the reception permission registering number are determined by majority. When the reception refusal registering number is more than the reception permission registering number, the e-mail from the transmitter is made to be uniformly refused to receive. Not only the transmitter ID of the transmitter refusing reception of the e-mail but also the content of a text of e-mail of refusing reception and the content of analyzing a meaning on the basis of the text of the e-mail are recorded as data, and the e-mail is uniformly refused to receive by checking up the recording content of the data with the content of the e-mail. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an e-mail reception refusal device which uniformly refuses reception of e-mails sent to an unspecified large number.

[0002]

2. Description of the Related Art When using electronic mail, there are cases in which there is no choice but to receive commercial mail that is unilaterally sent to an unspecified large number such as direct mail. I feel uncomfortable with receiving such commercial emails that I do not want to receive (hereinafter referred to as "junk emails"),
In addition, there is a case that browsing a spam mail increases the risk of being infected with a computer virus, and receiving a large amount of spam mail that exceeds the storage capacity may render a terminal such as a mobile phone device inoperable. . These are social issues.

In the prior art, when rejecting unsolicited mail, as shown in FIG. 16, the electronic mail between the sender 92 and the recipient 93 is between the sender 92 and the recipient 93 who exchange electronic mail. The e-mail recipient 9 is sent to the e-mail service providing device 91 that controls the exchange of e-mails.
Each of the three registered the mail address of the sender 92 who wishes to reject the reception by referring to the received electronic mail (a). Then, when the electronic mail service providing apparatus 91 next controls the exchange of electronic mail,
The recipient 93 refuses to receive the electronic mail from the sender 92 (b).

[0004]

However, as shown in FIG.
In the conventional technique shown in (1), the recipient 93 receives the junk mail at least once. For this reason, such as the discomfort of receiving unsolicited emails, the risk of computer virus infection due to browsing unsolicited emails, and the possibility of inoperability of terminals such as mobile phone devices due to excess storage capacity due to unsolicited email reception. The problem remained unresolved.

Further, each of the recipients 93 must individually register the mail address of the sender who wishes to reject the reception in the electronic mail service providing apparatus 91. For this reason, if the operation of rejecting the reception cannot be performed, even a countermeasure against the junk mail cannot be taken, and even if one receiver 93 registers the reception refusal, another recipient 94 does not reject the junk mail. There was a problem (c).

Further, as shown in FIG. 17, in the conventional technique, even if the receiver 93 registers the refusal of reception of the junk mail from the sender 92 (a, b), the same sender 92 does not If unsolicited emails are sent using the email address (c) or if another sender 95 who is not registered for rejection is sent unsolicited emails (d), there is a problem that the unsolicited emails cannot be rejected. It was happening.

Moreover, some mobile phone devices that can handle e-mail limit the number of e-mail addresses that can be rejected to about 10, which is far from the fundamental solution to unwanted e-mail.

An object of the present invention is to solve the above-mentioned problems of the prior art and to provide an apparatus for uniformly rejecting electronic mails that many recipients have determined to be junk mails.

Further, the present invention uniformly rejects unsolicited e-mails having the same meaning sent by the same sender using a plurality of e-mail addresses and unsolicited e-mails having the same meaning sent by different senders. The purpose is to provide a device.

[0010]

In order to solve the above problems, the present invention comprises the following means.

The present invention is an e-mail reception refusal device for rejecting reception of an e-mail, which accepts a refusal of reception that specifies a sender of an e-mail that rejects reception, and rejects the reception for each sender. Reception refusal registration means for storing and managing reception refusal data for registering a person, and when the number of reception refusal registrations of the sender exceeds a predetermined number, the e-mail of the sender is set as a destination of the e-mail. All recipient reception refusal means for rejecting reception to all designated recipients.

Further, the apparatus according to the present invention receives the reception refusal registration specifying the sender of the electronic mail whose reception is rejected, and stores and manages the reception refusal data for registering the refusal recipient for each sender. Reception refusal registration means to
Receiving permission registration means for accepting a receiving permission registration specifying a sender of an e-mail whose reception is permitted, and storing and managing receiving permission data for registering the receiving permitted recipients for each of the senders, and registration of the reception refusal When the number is larger than the number of registrations of the reception permission, all-recipient reception refusal means for rejecting reception of the sender's e-mail to all the recipients designated as the destination of the e-mail. .

Further, in this configuration, the reception refusal registration means of the device according to the present invention stores the group information in which the recipients who have registered the reception refusal are grouped by a predetermined attribute. The reception permission registration means stores and manages group information in which the recipients are grouped according to a predetermined attribute with respect to the recipients who have registered the reception permission. , Comparing the number of registrations of the reception refusal and the number of registrations of the reception permission for each of the group information, and only when the number of registrations of the reception refusal is larger than the number of registrations of the reception permission, Reception may be rejected for all recipients specified as the destination.

Further, the all-recipient reception refusal means of the apparatus according to the present invention may further permit the recipient who registered the reception permission to receive the electronic mail of the sender.

Further, the apparatus according to the present invention receives the reception refusal registration specifying the sender of the e-mail whose reception is refused, and registers the refusal of the reception and the text of the e-mail for each of the senders. Receiving refusal e-mail registration means for storing and managing reception refusal e-mail data, and when an e-mail having the same body as the body of the e-mail arrives, all recipients designated as destinations of the e-mail To all recipients reception refusal means for refusing reception.

Further, the apparatus according to the present invention accepts the reception refusal registration specifying the sender of the electronic mail whose reception is to be rejected, and semantically analyzes the recipients who have rejected the reception for each sender and the text of the electronic mail. Receiving refusal mail analysis data registration means for storing and managing reception refusal mail analysis data for registering the semantic analysis data, and when the e-mail arrives, the arrived e-mail is the same as the semantic analysis data or a predetermined value or more. When the degree of similarity is satisfied, all recipient reception refusal means for rejecting reception to all recipients designated as the destination of the electronic mail is provided.

As described above, according to the present invention, when the refusal of receiving the e-mail is registered by a certain number of recipients or more,
By setting the sender of the electronic mail to be a reception refusal target of all the recipients who are using the electronic mail service providing apparatus, it is possible to uniformly reject the reception of the electronic mail from the sender.

Further, according to the present invention, a group of a plurality of reception refusal persons is registered in the reception refusal data of all the recipients only when the reception refusal object is registered, so that a group (classmate, same housing complex, fan) is registered. In clubs, etc.), it is possible to exclude an act of intentionally rejecting all recipients by causing rejection of reception to a specific person.

Further, the present invention means not only the ID for identifying the sender whose reception is rejected by the receiver, but also the content of the electronic mail text that the receiver rejects or the text of the electronic mail. The analyzed contents are also recorded as data, and the rejection of e-mail reception is judged based on the recorded contents, so that unsolicited e-mails with the same meaning that are sent using multiple e-mail addresses are uniformly received. You can refuse.

Further, each means or function or element of the apparatus according to the present invention and each processing step of the processing method according to the present invention can be realized by a program installed and executed in a computer. The program that realizes the present invention can be stored in an appropriate recording medium such as a portable medium memory, a semiconductor memory, and a hard disk that can be read by a computer, and is provided by being recorded in these recording media. It is provided by transmission and reception using various communication networks via the interface.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

[First Embodiment] FIG. 1 is a diagram showing an outline of processing for rejecting junk mail reception according to the present invention in the first embodiment.

When the recipient 4 receives an e-mail (junk mail) from the sender 3 (a1), the recipient 4 sends the e-mail address of the sender 3 to the e-mail service providing apparatus 2 to cause the annoyance. A request for registration of refusal of reception of an electronic mail from the mail sender 3 is made (b1). The e-mail service providing apparatus 2 accepts the reception refusal registration for the sender 3 (c1), and notifies the e-mail reception refusal apparatus 1 of the registration (d1). Then, the e-mail reception refusal device 1 notified by the e-mail service providing device 2
Performs registration of reception refusal for each sender 3. Note that the electronic mail service providing apparatus 2 receives the request for canceling the reception refusal registration or the reception permission registration from the recipient 4,
The e-mail reception refusal device 1 is similarly notified, and the e-mail reception refusal device 1 similarly cancels the reception refusal registration or registers the reception permission.

If a certain number or more of reception refusals are registered, the electronic mail reception refusal apparatus 1 makes a majority decision on the reception refusal registration count and the reception permission registration count (e1), and the reception refusal registration count is determined. When there is a large number, the sender 3 of the spam mail is registered in the all-recipient reception refusal data and is set as the object of all-recipient reception refusal (f1).

When the junk mail from the sender 3 arrives at the electronic mail service providing apparatus 2 (g1), the electronic mail reception refusal apparatus 1 notifies the sender 3 that the arrival of the electronic mail is detected again. (H1). The e-mail reception refusal device 1 that has received the notification determines that the e-mail is unsolicited e-mail and the e-mail service providing device 2 when the sender 3 of the e-mail is a target of refusal of reception of all recipients. Refuses to receive the email even if the email is addressed to another recipient 5 whose email has not been refused (i1). In addition, the electronic mail reception refusal device 1
If it is determined that the sender 3 of the e-mail is not the target of refusal of all recipients, the e-mail service providing apparatus 2 displays the contents of the reception refusal registration and the sender 3 of the e-mail. If they match and match, the reception is rejected individually (k1).

In the first embodiment, the electronic mail reception refusal device 1 for implementing the present invention receives the reception refusal registration / cancellation notification or the reception permission registration notification from the electronic mail service providing device 2 and sends it to each sender. If you update the reception rejection data and the number of reception rejection registrations exceeds the number of reception permission registrations,
The corresponding sender is registered in the reception rejection data for all recipients, and reception is uniformly rejected. Therefore, a large number of recipients can uniformly reject emails that they wish to refuse to receive, so even recipients who cannot perform the operation to reject the recipients will not reject the emails even once. can do.

FIG. 2 shows an example of the system configuration of the present invention in the first embodiment.

In FIG. 2, the electronic mail reception refusal device 1 of the present invention comprises a reception refusal registration means 11, a reception permission registration means 12, a total reception refusal determination means 13 and a total receiver reception refusal means 14, and a sender. The storage unit stores the separate reception refusal data 15 and the reception refusal data 16 for all recipients. The electronic mail service providing device 2 includes a registration notification unit 21, an arrival detection unit 22, and a reception refusal execution unit 23.

The reception refusal registration means 11 of the e-mail reception refusal apparatus 1 acquires the reception refusal registration notification or the reception refusal cancellation notification from the registration notification means 21 of the e-mail service providing apparatus 2 and rejects the reception by sender. It is a means for updating the data 15.

The reception permission registration means 12 is means for acquiring the reception permission registration notification from the registration notification means 21 of the electronic mail service providing apparatus 2 and updating the sender-specific reception refusal data 15.

The total reception refusal determination means 13 determines that the reception refusal data 15 for each sender is a certain number or more of refusals of reception.
If the number of registrations for refusal of reception and the number of registrations for permission of reception are decided by majority, and if the number of registrations for refusal of reception is greater than the number of registrations for permission of reception, all the recipients will be rejected by the reception refusal data 16 Is a means for deleting the senders registered in the all-recipient reception refusal data 16 when the number of registrations for reception refusal is smaller. Here, the certain number or more is an arbitrary number or more such as a predetermined number of hundreds or thousands or more of registrations or a predetermined number or more of persons who receive the e-mail service.

The all-recipient reception refusal means 14 receives the e-mail arrival detection notification from the arrival detection means 22 of the e-mail service providing apparatus 2, and receives the all-recipient reception refusal data 1
6 and the sender related to the email arrival detection notification are collated, and if they match, a notification that all the recipients of the email are refused to be received uniformly (notification of all recipient reception refusal) It is means for sending to the reception refusal execution means 23.

Specifically, the all-recipient reception refusal means 14
When the all-recipient reception refusal data 16 matches the sender, the all-recipient reception refusal data for the e-mail is sent to the reception-rejection executing means 23, and the all-recipient reception refusal data 16 and the sender are sent. If does not match, the notification of refusal of reception for all recipients is not sent.

Even when the all-recipient reception refusal data 16 and the sender match each other and the all-recipient reception refusal notification is sent out, the all-recipient reception refusal means 14 permits the sender to receive. A notification (individual reception permission notification) indicating that the reception is individually permitted may be sent to the existing recipients.

The registration notifying means 21 of the e-mail service providing device 2 registers the refusal of reception of the e-mail with the e-mail address of the sender (reception refusal data).
・ Notification of reception refusal registration cancellation (reception refusal cancellation data) is notified to the reception refusal registration means 11 or e-mail reception permission registration (reception permission data) from the recipient with the sender's e-mail address is received permission registration It is a means for notifying the means 12. The reception refusal data, the reception refusal release data, and the reception permission data are the recipient ID of the recipient to be registered, the sender ID to be registered, etc., and if specified, the email text of the registration email or the email. It is composed of information for specifying.

The arrival detecting means 22 is means for detecting arrival of an electronic mail from the sender and notifying the all-recipient reception refusal means 14 of the detection.

The reception refusal execution means 23 is a means for uniformly refusing the reception of the transmitted mail to the recipients when the reception refusal notification for all the recipients is received from the reception refusal means 14 for all the recipients. If the reception refusal execution means 23 does not receive the notification of refusal of reception of all recipients, the reception refusal data 15 for each sender is referred to, and the e-mail is received only by the recipients who have registered the refusal of reception. Refuse to In addition, even when the reception refusal notification for all recipients is received, the reception refusal data 15 for each sender is referred to, and the recipients who have registered the reception permission are permitted to receive the electronic mail. In this way, the reception refusal executing means 23 does not reject the reception of the recipients who have registered the reception permission even if the reception refusal notification of all the recipients is received from the reception refusal means 14 of all the recipients. Can be avoided.

Since the electronic mail reception refusal device 1 according to the present invention is not based on a specific hardware device,
As shown in FIG. 2, it may be installed separately from the e-mail service providing device 2 so as to operate in cooperation with the e-mail service providing device 2, or installed in the e-mail service providing device 2. Good.

FIG. 3 is a diagram showing an example of sender-specific reception refusal data and an example of all-recipient reception refusal data according to the first embodiment of the present invention.

As shown in FIG. 3A, the sender-specific reception refusal data 15 is composed of a table for storing the management record 150 and a table for storing the data record 151.

The management record 150 includes a reception permission registration number (permission number) and a reception refusal registration number (rejection number) for each sender ID.
It is for managing and. The sender ID is information that can uniquely identify the sender's email address,
It is a key of the management record 150. Where sender ID
When information that can be uniquely specified as is adopted, a separate table for managing the sender ID and the electronic mail address is required. However, whether the e-mail address is stored as the sender ID as it is or the specific ID is stored is not an item that affects the realization of the present invention, and an optimum method is adopted when creating a device that implements the present invention. It shall be.

The data record 151 is the management record 1
It is a record associated with 50 and a sender ID, and is for managing the registered recipient ID and its registration status for each sender ID.

Like the sender ID, the recipient ID is information that can uniquely identify the recipient's e-mail address, and either stores the recipient's e-mail address as it is or stores information that uniquely identifies it. To do.

In the registration state of the data record 151, flag = 1 is registered when reception refusal is performed, and flag = 0 is registered when reception refusal is canceled. In the present embodiment, it is assumed that both flag = 0 or flag = 1 are recognized as reception refusal. Therefore, even if the receiver cancels the reception refusal, the corresponding sender I
If D is registered in the all recipient reception refusal data 16,
Rejection of emails remains valid, so the recipient does not have to manage a large number of rejections. Therefore, even an e-mail browsing device that can perform only a certain number of reception refusal registrations can be registered by distinguishing whether the reception refusal is the reception permission or only the new reception refusal is registered. . When the recipient permits the reception, flag = 2 is registered, and it becomes a determination target whether or not to delete the corresponding sender ID from all recipient reception refusal data 16.

As shown in FIG. 3B, the all-recipient reception refusal data 16 is composed of a table composed of data records 160.

The data record 160 is for managing the IDs of senders who are rejected by all recipients. The sender ID is reception refusal data 1 for each sender
5 is associated with the sender ID of the data record 151 of 5.

In the all-recipient reception refusal data 16, the sender ID in which the number of refusals in the management record 150 in the sender-specific reception refusal data 15 is a certain number or more and the number of refusals exceeds the permitted number is registered. Registrations are held until the number of permits exceeds the number of denials.

4 and 5 are diagrams for explaining the processing steps of the electronic mail reception refusal device 1 according to the first embodiment of the present invention.

Regarding the electronic mail transmitted from the sender 3 to the recipient 4 through the electronic mail service providing device 2,
When the refusal of reception is registered by the recipient 4 (step S1
1), the e-mail reception refusal device 1 acquires the reception refusal data notified from the e-mail service providing device 2 (step S12).

Then, the reception refusal registration means 11 of the e-mail reception refusal device 1 updates the reception refusal data 15 for each sender (step S13). That is, the receiver rejection registration means 11 adds the sender ID of the reception reject data, the receiver ID, and the flag = 1 (reject) to the data record 151, and the sender ID is registered in the management record 150. If so, the rejection number is incremented by 1. If the sender ID is not yet registered in the management record 150, the sender ID is added and the rejection count = 1.

Next, the total reception refusal judging means 13 determines the number of reception refusal registrations and the number of reception permission registrations when reception refusal data 15 for each sender has registered a certain number or more of reception refusals for each sender. (Step S14), and when the number of registrations for refusal of reception is greater, the sender ID is registered in the reception refusal data 16 for all recipients (step S15), and the number of registrations for refusal of reception by the sender is If the number is small, the sender ID of the sender is deleted from the all recipient reception refusal data 16 (step S16).

When the recipient 4 cancels the registration of the reception refusal (step S11), the electronic mail reception refusal device 1
Acquires the reception refusal cancellation data from the electronic mail service providing apparatus 2 (step S12), and the reception refusal registration means 1
1 is a data record 1 of sender-specific reception rejection data 15
51, the flag of the corresponding recipient 4 is updated to 0 (rejection cancellation) (step S13). In this case, the management record 150 of the sender-specific reception refusal data 15
Since the number of refusals of is not changed, the total reception refusal determination means 13
Does not have to perform the processing from step S14 to step S16.

On the other hand, when the reception permission is registered by the recipient 4 (step S17), the electronic mail reception refusal device 1
Acquires reception permission data from the electronic mail service providing apparatus 2 (step S18). The reception refusal registration means 11 of the electronic mail reception refusal device 1 updates the reception refusal data 15 for each sender (step S19). That is, the receiver permission registration means 12 adds the sender ID of the reception permission data, the receiver ID, and the flag = 2 (permission) to the data record 151, and adds the sender ID to the management record 150.
If is registered, the permitted number is incremented by 1. Also,
If the sender ID is not yet registered in the management record 150, the sender ID is added and the permitted number = 1.

Next, the total reception refusal determination means 13 determines the number of reception rejection registrations and the number of reception permission registrations when the reception rejection data 15 for each sender has registered a certain number or more of reception permission for each sender. (Step S20), and if the number of registrations for reception permission is greater, all recipients' reception rejection data 1
The sender ID is deleted from 6 (step S21).

After that, when the electronic mail service providing apparatus 2 detects the arrival of the electronic mail, the electronic mail reception refusal apparatus 1 is notified to that effect (step S30). The electronic mail reception refusal device 1 collates the sender 3 of the electronic mail with the reception refusal data 16 of all recipients (step S31),
It is determined whether or not the sender 3 is the object of refusal of all recipients (step S32). As a result of the collation, if the sender 3 of the e-mail and the all-recipient reception refusal data 16 match and are subject to all-recipient reception refusal, further individual reception permission of the sender-specific reception refusal data 15 is permitted. It is determined whether or not it is a registration target (step S33), and if there is no individual reception permission registration, the reception of the electronic mail is uniformly rejected as a rejection of reception by all recipients (step S34). If there is individual reception permission registration, only the recipients who have registered the reception permission individually are permitted to receive the electronic mail (step S35). If it is determined in step S32 that all recipients are not rejected, the e-mail reception rejection device 1 determines whether the recipients are individually registered for rejection (step S32). S
36) If the refusal of reception is individually registered, the reception of the e-mail is rejected (step S37).

According to this embodiment, with respect to electronic mails for which a large number of recipients desire to refuse reception, the reception is uniformly rejected. As a result, the e-mail service providing company can effectively prevent spam. Also,
By implementing the e-mail reception refusal device 1 and the e-mail service providing device 2 according to the present invention so as to cooperate with each other, the existing device can be used as the e-mail browsing device and the e-mail service providing device such as a cooperative mobile phone device. It can be used as it is, and spam mails can be prevented without incurring new facility investment or costs such as collection and redistribution of browsing devices.

Note that the all-reception refusal determination means 13 receives data based on the sender's address so as not to reject all-recipient reception between the electronic mail service providing devices managed by the electronic mail service providing company. You can also decide the rules. As a result, it is possible to prevent a usage method in which a plan is made in a group of people to cause a specific individual to reject all recipients.

According to the present invention, many so-called junk e-mails are registered as refusal of reception and can be rejected by all recipients. Therefore, it becomes meaningless for the sender of junk e-mails to send e-mails, and junk e-mails themselves are sent. Has the effect of being expected to be eradicated. [Second Embodiment] In the second embodiment, the device according to the present invention makes a judgment based on a majority decision when judging whether an e-mail should be rejected by all recipients. Do this for each defined group so that intentional refusal of reception can be avoided.

FIG. 6 shows an outline of processing for rejecting junk mail reception according to the present invention in the second embodiment.

The processes (a2) to (d2) shown in FIG. 6 are the processes (a1) to (d1) in the first embodiment shown in FIG.
The process is the same as that of. That is, the e-mail service providing device 2 accepts the reception refusal registration of the receiver 4 for the e-mail (junk mail) of the sender 3 and notifies the e-mail reception refusal device 1 of the registration (a2 to d2).

Then, the electronic mail reception refusal device 1 which has received the notification registers the reception refusal data for each sender 3. At that time, the e-mail reception refusal device 1 follows the predetermined group of the attributes of the recipients.
Group attributes are registered for each recipient 4 to be registered.

If a certain number or more of reception refusals are registered, the electronic mail reception refusal apparatus 1 makes a majority decision on the reception refusal registration count and the reception permission registration count for each group to which the recipients of the reception refusal registration belong. (E2) The sender of the e-mail is registered in the all recipients reception refusal data only when the number of reception refusal registrations is larger than the number of reception permission registrations in the plurality of attribute groups (f2).

The subsequent processes (g2) to (k2) are the same as the processes (g1) to (k1) shown in FIG.

In the second embodiment, the electronic mail reception refusal apparatus 1 sends the electronic mail only when the sender 3 is the object of refusal of all recipients in the plurality of groups to which the recipient 4 belongs. Judge as junk mail and reject all recipients. Therefore, it is possible to prevent the act of intentionally rejecting all the recipients by intentionally causing the recipients to reject the reception in a specific group such as classmates, the same housing complex, and fan clubs. With the majority decision of the number of refusal of reception, it is possible to effectively utilize the decision as to whether or not to reject all the recipients.

FIG. 7 shows an example of the system configuration of the present invention in the second embodiment.

In FIG. 7, the electronic mail reception refusal apparatus 1 of the present invention comprises a reception refusal registration means 51, a reception permission registration means 12, a total reception refusal determination means 53, and a total reception refusal means 14, and a sender. The storage unit stores the separate reception refusal data 15, the reception refusal data 16 for all recipients, and the reception refusal group data 52. The electronic mail service providing device 2 includes a registration notification unit 21, an arrival detection unit 22, and a reception refusal execution unit 23. In FIG. 7, processing means that perform the same processing as the processing means shown in the system configuration example of FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted.

The reception refusal registration means 51 acquires the reception refusal registration data from the registration notifying means 21 of the electronic mail service providing apparatus 2 and, as in the first embodiment, FIG.
This is means for updating the sender-specific reception refusal data 15 shown in (A) and further updating the reception refusal group data 52 indicating which group the recipient belongs to.

FIG. 8 shows an example of the reception refusal group data 52. The reception refusal group data 52 includes a table that stores the data record 520.

The data record 520 is for managing the attributes of the group in the category predetermined for each recipient. As shown in FIG. 8, group attributes prepared in advance for each category such as region, age, and sex are registered. For example, as the area, the area Gr1 (for example, xx city) and the area Gr2 (for example, yy town) are registered for each city level address. Also, as the age, age Gr1 (for example, teens), age Gr2 (for example, 20s)
Is registered. Further, as the sex, the sex Gr1 (for example, male) and the sex Gr2 (for example, female) are registered.
The group of recipients is used by extracting it from recipient master data (not shown in FIG. 6) generated based on the description items at the time of contract of the e-mail service.

The recipient ID of the data record 520
Is the data record 15 of the reception rejection data 15 for each sender.
It is linked to the recipient ID of 1.

The total reception refusal determination means 53 determines that the reception refusal data 15 for each sender is equal to or more than a certain number of reception refusals for the sender.
If the number of registrations for refusal of reception is greater than the number of registrations for refusal of reception in multiple (2 or more) groups, the majority of the number of registrations for refusal of reception and the number of registrations for reception are registered for each group. Only, this is a means for registering the sender in the all-recipient reception refusal data 16 and deleting the sender registered in the all-recipient reception refusal data 16 when the number of reception refusal registrations is smaller.

The all-reception refusal determination means 53, for example, regarding an e-mail of a certain sender 3, a teenager (age Gr1) woman (sex Gr of a certain xx city (region Gr1)).
Only the recipient 4 who is 2) makes the reception refusal registration,
Even if a certain number or more of refusal of reception is registered, the e-mail is not judged to be rejected by all the recipients unless the condition that the number of groups is a certain number or more is satisfied. . On the other hand, with respect to the e-mail, when there is a certain number of reception refusal registrations from the recipients 4 who are males or females in their teens to thirties over a plurality of cities, and the reception refusal count is the reception permission count. When more than
All recipients will be rejected.

Regarding the registration of cancellation of reception refusal, the all-reception refusal judgment means 53 determines that the number of refusal of reception is judged by a majority decision by the sender 3 of the junk mail systematically performing registration of cancellation of reception refusal. The determination by the group may not be performed in order to prevent the reception refusal from being released due to a situation in which the number exceeds the limit.

FIGS. 9 and 10 are diagrams for explaining the processing steps of the electronic mail reception refusal device 1 according to the second embodiment of the present invention.

Regarding the electronic mail transmitted from the sender 3 to the recipient 4 through the electronic mail service providing device 2,
When the refusal of reception is registered by the recipient 4 (step S4
1), the e-mail reception refusal device 1 acquires the reception refusal data notified from the e-mail service providing device 2 (step S42).

Then, the reception refusal registration means 51 of the electronic mail reception refusal device 1 updates the reception refusal data 15 for each sender and the reception refusal group data 52 (step S).
43). That is, the reception refusal registration means 51 adds the sender ID of the reception refusal data, the receiver ID, and the flag = 1 (rejection) to the data record 151, and the management record 1
If the sender ID of the sender 3 is registered in 50, the reject count is incremented by one. If the sender ID is not yet registered in the management record 150, the sender I
D is added and the number of rejects is set to 1. Further, the reception refusal registration means 51 refers to the reception refusal group data 52,
If the recipient ID is not registered, the recipient I
The attribute group of the recipient is acquired from the recipient master data based on D and added to the data record 520.

Next, the total reception refusal judging means 53, when the reception refusal data for each sender 15 has a predetermined number or more of reception approvals registered for each sender, the reception refusal registration number and the reception approval registration number. (Step S44), and when the number of registrations for reception refusal is large, further, based on the reception refusal data 15 for each sender and the reception refusal group data 52,
A majority decision is made on the number of reception rejection registrations and the number of reception permission registrations for each group (step S45). If the number of reception rejection registrations is greater in a plurality of groups, the sender ID is registered in the all-recipient reception rejection data 16. (Step S46). If the number of registrations for refusal of reception is smaller in the process of step S44, or if the number of registrations for refusal of reception is not large in a plurality of groups in the process of step S45, all the reception refusal data 16 are sent to the senders. The sender ID of is deleted (step S47).

When the recipient 4 cancels the registration of the reception refusal (step S41), the electronic mail reception refusal device 1
Acquires the reception refusal cancellation data from the electronic mail service providing apparatus 2 (step S42), and the reception refusal registration means 5
1 is a data record 1 of sender-specific reception rejection data 15
51, the flag of the corresponding recipient 4 is updated to 0 (rejection cancellation) (step S43). In this case, the management record 150 of the sender-specific reception refusal data 15
Since the number of refusals of the reception is not changed, the total reception refusal determination means 53
Does not have to perform the processing from step S44 to step S47.

On the other hand, when the recipient 4 registers the reception permission (step S48), the electronic mail reception refusal device 1
Acquires reception permission data from the electronic mail service providing apparatus 2 (step S49). The reception permission registration means 12 of the e-mail reception refusal device 1 updates the reception refusal data 15 for each sender (step S50).

Next, the total reception refusal judging means 53 determines the reception refusal registration number and the reception permission registration number when the reception refusal data 15 for each sender has registered a certain number or more of reception permission for each sender. (Step S51), and if the number of registrations for reception permission is greater, the reception rejection data 1 for all recipients
The sender ID of the sender is deleted from 6 (step S
52).

After that, when the electronic mail service providing apparatus 2 detects the arrival of the electronic mail, the electronic mail reception refusal apparatus 1 is notified to that effect (step S60). The e-mail reception refusal device 1 collates the e-mail sender 3 with the all-recipient reception refusal data 16 (step S61),
It is determined whether or not the sender 3 is the object of refusal of all recipients (step S62). As a result of the collation, if the sender 3 of the e-mail and the all-recipient reception refusal data 16 match and are subject to all-recipient reception refusal, further individual reception permission of the sender-specific reception refusal data 15 is permitted. It is determined whether or not the e-mail is registered (step S63), and if there is no individual reception permission registration, the reception of the electronic mail is uniformly rejected as a refusal of reception by all recipients (step S64). If there is individual reception permission registration, only the recipients who have registered the reception permission individually are permitted to receive the electronic mail (step S65). If it is determined in the process of step S62 that the recipients are not rejected by the recipients, the e-mail reception rejection apparatus 1 determines whether the recipients are individually registered for rejection (step S62). S
66) If the reception refusal is individually registered, the e-mail is rejected by the recipient who has rejected the reception (step S67), and the recipient who has not rejected the reception is permitted (step S68). ). [Third Embodiment] In the third embodiment, the device according to the present invention means not only the e-mail address of the sender of the e-mail related to reception rejection registration but also the e-mail text and the e-mail text. The analyzed contents are recorded as data, and based on the recorded contents, the same or similar e-mail is identified as an e-mail related to the reception refusal registration and reception is rejected. This makes it possible to reject unsolicited emails having the same meaning, which are sent using multiple email addresses.

FIG. 11 is a diagram showing an outline of processing for rejecting junk mail reception according to the present invention in the third embodiment.

The processes (a3) to (d3) shown in FIG.
Processing (a1) to (d) in the first embodiment of FIG.
It is similar to the process of 1). That is, the e-mail service providing device 2 uses the e-mail of the sender 3 (junk mail).
The reception refusal registration of the recipient 4 is accepted, and the e-mail reception refusal apparatus 1 is notified of the reception refusal registration (a3 to d).
3).

The e-mail reception refusal apparatus 1 which has received the notification registers the reception refusal data for each sender 3 by the same processing as the processing in the first embodiment, and further, the sender 3 transmits it. The body of the e-mail is recorded, the e-mail is semantically analyzed, and the analysis contents are recorded (e3).

After performing such an operation, that is, after a single rejected e-mail has been registered, the sender 3 sends an unsolicited junk e-mail using another address. When you arrive at 2 (f
3), the electronic mail service providing device 2 notifies the electronic mail reception refusal device 1 of the arrival of the electronic mail (g)
3). The e-mail reception refusal device 1 that has received the notification makes a majority decision based on the reception refusal number and the reception permission number. (H3) If the reception refusal cannot be performed, the received e-mail is further collated with the text of the e-mail relating to the reception refusal registration or the analysis content of the text, and the e-mail is the e-mail text of the reception refusal registration. Or it is determined that it is the same or similar to the stored analysis content (i3). And
When it is determined that the content is the same as or similar to the analysis content, the electronic mail service providing apparatus 2 rejects the electronic mail as an electronic mail for reception rejection registration (j3).

Further, by the same processing, another sender 6
Even if an unsolicited email having the same meaning is sent by (k3), it is rejected as a target of all recipients' rejection (m3).

Therefore, in the third embodiment,
According to the present invention, when the same sender uses different mail addresses to send junk mail with the same meaning, it is possible to uniformly reject the reception, and another sender 6 sends junk mail with the same meaning. Even when is sent, the reception can be rejected as a target of the rejection of reception by all the recipients.

FIG. 12 shows a system configuration example of the present invention in the third embodiment.

In FIG. 12, the electronic mail reception refusal device 1 of the present invention has a reception refusal registration means 71, a reception permission registration means 72, a mail text analysis means 73, and a reception refusal means 74.
And a mail similarity determination unit 75, and a storage unit for storing the sender-specific reception refusal data 15, the reception refusal mail data 76, and the reception refusal mail analysis data 77. The electronic mail service providing device 2 includes a registration notification unit 21, an arrival detection unit 22, and a reception refusal execution unit 23.

The reception refusal registration means 71 of the electronic mail reception refusal apparatus 1 has the same configuration as the processing in the first embodiment.
A notification of reception refusal registration or a notification of cancellation of reception refusal is acquired from the electronic mail service providing apparatus 2, the reception refusal data 15 for each sender is updated based on the acquired notification, and in addition, the reception refusal mail data 76 and This is means for updating the reception refusal mail analysis data 77.

The reception refusal registration means 71 adds the reception refusal data to the reception refusal data 15 for each sender, and if the reception refusal data specifies or includes the body mail of the electronic mail, the sender 3 The relevant body mail is recorded in the reception refusal mail data 76, the body text mail is further passed to the mail body analysis means 73 to receive the analysis processing result, and the analysis processing result (analysis content data) is recorded in the reception refusal mail analysis data 77. To do.

When the reception refusal registration cancellation data from the recipient 4 is acquired, the flag of the corresponding recipient in the reception refusal data 15 for each sender is changed, and the reception refusal mail data 7 is received.
The recipient ID of the corresponding recipient of No. 6 is deleted.

The reception permission registration means 72 acquires the reception permission registration data or the reception refusal cancellation data from the electronic mail service providing apparatus 2 as in the case of the processing in the first embodiment, and based on the acquired data. This is a means for updating the sender-specific reception refusal data 15 and deleting the sender ID related to the reception refusal cancellation notification recorded in the reception refusal mail data 76 and the notified recipient ID.

The e-mail text analysis means 73 is a means for performing a semantic analysis process on the e-mail text of the acquired reception refusal data and returning the analysis content data to the reception refusal registration means 71. The mail text analysis means 73 is assumed to perform a known semantic analysis process.

FIG. 13 shows an example of the reception refusal mail data and an example of the reception refusal mail analysis data.

Reception refusal mail data 76 of FIG. 13 (A)
Is composed of a table storing the management record 761 and a table storing the data record 762.

The management record 761 includes a mail ID for uniquely identifying the body of an electronic mail for registration of reception refusal, a sender ID of sender 3 for registration of reception refusal, and a recipient ID of recipient 4 for registration of reception refusal. It is for recording and management. The sender ID and the receiver ID are the same as those recorded in the sender-specific reception refusal data 15.

The data record 762 is for storing the mail text of the electronic mail corresponding to the mail ID. The mail body is the data of the part of the received electronic mail excluding the management area called the mail header.

The reception refusal mail analysis data 77 of FIG. 13B is composed of a table composed of data records 771.

The data record 771 is for storing analysis content data which is the result of the semantic analysis processing of the mail text corresponding to the mail ID. Email ID is
It is assumed to be the same as that recorded in the reception refusal mail data 76.

When the same mail from the same sender is registered for reception refusal by a plurality of recipients,
The reception refusal mail data 76 and the reception refusal mail analysis data 77 are stored as a registration of only one mail. As a result, the storage capacity and the search processing speed can be improved.

When the reception refusal means 74 receives the arrival notice from the arrival detection means 22 of the electronic mail service providing apparatus 2, the reception refusal means 15 refers to the reception refusal data 15 for each sender / receiver,
When the sender 3 of the e-mail relating to the arrival notification is registered for the refusal of reception, this is a means for rejecting the reception of the recipient 4 registered for the refusal of reception. The reception refusal unit 74 further passes the electronic mail to the mail similarity determination unit 75, and based on the processing result (the text of the reception refusal mail or the content of analysis matches), the reception refusal is performed for the recipients registered for reception refusal. To do.

The mail similarity determination means 75 receives the e-mail for the arrival notification from the reception refusal means 74, collates it with the reception refusal mail data 76, and the text of the e-mail is recorded in the reception refusal mail data 76. When the text matches, it is a means to return the fact that the text matches. Further, the mail similarity determination means 75 collates the text of the electronic mail with the reception refusal mail analysis data 77, and the text of the electronic mail matches the analysis content of the reception refusal mail analysis data 77 or is more than a predetermined value. If yes, it returns a match.

By comparing the mail texts themselves stored in the data record 762 of the reception refusal mail data 76, the mail similarity determining means 75 quickly finds a large amount of junk mails of the same content that only the sender 3 is different. You can check. Further, the mail similarity determination unit 75 compares the analysis content of the mail body stored in the data record 771 of the reception refusal mail analysis data 77 with the similarity, so that the junk mail whose expression is slightly changed is detected. You can check it quickly.

14 and 15 are diagrams for explaining the processing steps of the electronic mail reception refusal device according to the third embodiment.

When the recipient 4 of the e-mail has registered the refusal of reception (step S71), the e-mail service providing apparatus 2 notifies the e-mail reception refusal apparatus 1 of the reception refusal registration, and the e-mail reception refusal apparatus 1 Acquires reception refusal data (step S72).

Then, the reception refusal registration means 71 of the electronic mail reception refusal device 1 refers to the reception refusal data 15 for each sender, and when the recipient 4 is not registered, the reception refusal data for the sender 3 is received. Is added to update the sender-specific reception refusal data 15. Further, when an electronic mail is designated as the reception refusal data, the mail text analysis unit 73 records the mail text of the electronic mail in the reception refusal mail data 76 using the sender ID and the recipient ID as keys, and further, The reception refusal mail data 76 and the reception refusal mail analysis data 77 are updated by recording the analysis contents of the mail text analyzed by the mail text analysis means 73 as the reception refusal mail analysis data 77. (Step S73) When the reception refusal registration is canceled by the recipient 4 (step S71), the e-mail reception refusal device 1 acquires the reception refusal cancellation data (step S72), and the reception refusal registration means 71 The corresponding data record 151 of the reception rejection data 15 for each sender is rewritten, and the sender I
The reception refusal mail data 76 is updated by deleting the management record 761 of the reception refusal mail data 76 that matches using D and the recipient ID as a key. Furthermore, the mail ID of the deleted management record 761 is the other management record 76.
If it is not used in No. 1, it is updated by deleting the data record 762 corresponding to the mail ID and the data record 771 of the reception refusal mail analysis data 77 (step S73).

When the recipient 4 of the e-mail has registered the reception permission (step S74), the e-mail service providing apparatus 2 notifies the e-mail reception refusal apparatus 1 of the reception permission registration, and the e-mail reception refusal apparatus 1 Acquires reception permission data (step S75). The reception permission registration means 72 of the electronic mail reception refusal device 1 rewrites the corresponding data record 151 of the reception refusal data 15 for each sender, and of the reception refusal mail data 76 that matches using the sender ID and the recipient ID as a key. The management record 761 is deleted, and further, the mail I of the deleted management record 761
When D is not used in another management record 761, the data record 762 corresponding to the mail ID and the data record 7 of the reception refusal mail analysis data 77.
By deleting 71 and 71, the sender-specific reception refusal data 15, the reception refusal mail data 76, and the reception refusal mail analysis data 77 are updated (step S76).

After that, when the electronic mail service providing apparatus 2 detects the arrival of the electronic mail, the electronic mail reception refusal apparatus 1 is notified to that effect (step S80). The reception refusal means 74 of the e-mail reception refusal device 1 checks the reception refusal data 15 for each sender to determine whether the sender of the e-mail matches the sender ID (here, e-mail address) of the management record 150. It is determined whether or not (step S
81) If they match, the e-mail is rejected for reception (step S85).

The sender of the electronic mail is the sender ID of the management record 150 of the reception refusal data 15 for each sender.
If it does not match, the reception refusal unit 74 checks the reception refusal mail data 76 and determines whether the content of the e-mail text matches the content recorded in the data record 762 (step S82). . As a result of the judgment,
If they match, the electronic mail is rejected (step S85).

When the content of the electronic mail text does not match the content recorded in the data record 762 of the reception refusal mail data 76, the reception refusal means 74 determines the text of the electronic mail to be the mail similarity determination means. Then, the mail similarity determination means 75 semantically analyzes the body of the electronic mail (step S84), checks the reception refusal mail analysis data 77, and determines whether the data matches the analysis content data of the data record 771 or a predetermined value or more. (Step S85). Then, if the result of the semantic analysis of the body of the e-mail matches the analysis content data of the data record 771 recorded in the reception refusal mail analysis data 19 (or a predetermined similarity), the e-mail is rejected for reception. (Step S85), if they do not match, the reception of the e-mail is permitted (step S86). When the received e-mail is treated as the reception refusal, the reception refusal unit 74 performs, for example, one of the following processes. 1) Similar to the refusal of reception, the sender 3 is replied that there is an error in the designation of the recipient, and the recipient 4 is prevented from receiving the e-mail. 2) Nothing is returned to the sender 3 so that the recipient 4 does not receive the e-mail. 3) Reply to sender 3 that the message is rejected, and recipient 4
To prevent emails from being delivered to. 4) The sender 3 is replied that the reception is rejected, and the recipient 4
Notify with a mark indicating that it is judged to be the same as the spam mail. 5) Notify the recipient 4 with a mark indicating that it is the same type as the junk mail.

Although the present invention has been described with reference to the embodiments, the present invention can be variously modified within the scope of the gist thereof.

For example, the first and second embodiments can be implemented in combination with the third embodiment. Also, the electronic mail service providing device 2
Stores the reception refusal data for each sender independently, and if there is no notification of refusal of reception by all the recipients from the e-mail reception refusal device 1, the reception refusal execution means 23 assigns to the recipients individually registered for refusal of reception. It is also possible to reject the reception only.

Further, the e-mail reception refusal device 1 is provided between the recipient and the sender who are exchanging e-mails using the e-mail service providing devices 2 of the same group.
It may be possible to set such as not rejecting reception by all recipients. As a result, the service content of the e-mail service provider and differentiation from other companies in the same industry can also be achieved.

[0115]

As described above, according to the present invention, a large number of recipients can uniformly reject e-mails that they desire to reject, so that it can be a decisive measure for preventing unwanted mails from e-mail service companies. In addition, existing devices can be used as is for e-mail browsing devices such as mobile phone devices and e-mail service providing devices, so new equipment investment and costs such as collection and redistribution of browsing devices do not occur, so Differentiation can be realized at low cost.

Further, according to the present invention, unsolicited e-mails having the same meaning and transmitted using a plurality of e-mails can be uniformly rejected, so that it can be expected that the unsolicited e-mail transmission itself will be eradicated.

In particular, by checking whether the home page address in the e-mail is the same, it is checked whether the products and services introduced in the e-mail are the same. If you change the number and send the same kind of junk mail many times, you can deal with it sufficiently.

[Brief description of drawings]

FIG. 1 is a diagram showing an outline of a process of rejecting junk mail reception according to the present invention.

FIG. 2 is a diagram showing an example of a system configuration of the present invention in the first embodiment.

FIG. 3 is a diagram showing an example of sender refusal reception data and an example of all receiver reception refusal data according to the present invention.

FIG. 4 is a diagram illustrating a process of the electronic mail reception refusal device according to the first embodiment of the present invention.

FIG. 5 is a diagram illustrating a process of the electronic mail reception refusal device according to the first embodiment of the present invention.

FIG. 6 is a diagram showing an outline of processing for rejecting junk mail reception according to the present invention in the second embodiment.

FIG. 7 is a diagram showing an example of a system configuration of the present invention in a second embodiment.

FIG. 8 is a diagram showing an example of reception refusal group data in the present invention.

FIG. 9 is a diagram illustrating a processing process of an electronic mail reception refusal device according to the second embodiment of the present invention.

FIG. 10 is a diagram illustrating a processing process of an electronic mail reception refusal device according to the second embodiment of the present invention.

FIG. 11 is a diagram showing an outline of a process of rejecting junk mail reception according to the present invention in the third embodiment.

FIG. 12 is a diagram showing an example of a system configuration of the present invention in a third exemplary embodiment.

FIG. 13 is a diagram showing an example of reception refusal mail data and an example of reception refusal mail analysis data according to the present invention.

FIG. 14 is a diagram illustrating a processing process of an electronic mail reception refusal device according to the third embodiment of the present invention.

FIG. 15 is a diagram illustrating a process of the electronic mail reception refusal device according to the third embodiment of the present invention.

FIG. 16 is a diagram showing a refusal of receiving unsolicited email according to a conventional technique.

FIG. 17 is a diagram showing a refusal of receiving unsolicited email according to a conventional technique.

[Explanation of symbols]

1 E-mail reception refusal device 2 E-mail service providing device 3 E-mail sender (sender) 4 Recipients of e-mail (recipients) 5 Other recipients of e-mail (other recipients) 6 Another sender of email (another sender) 11 Reception refusal registration means 12 Reception permission registration means 13 Means for judging all reception refusal 14 All Recipient Reception Rejection Means 15 Rejection data for each sender 16 Rejection data for all recipients 51 Reception refusal registration means 52 Reception refusal group data 53 Rejection determination means 71 Reception refusal registration means 72 Reception permission registration means 73 Email text analysis means 74 Rejection means 75 Email similarity measure 76 Receive refusal mail data 77 Receive refusal mail analysis data

Claims (6)

[Claims] 1. An e-mail reception refusal device for rejecting reception of an e-mail, which accepts a refusal-of-receipt registration specifying a sender of an e-mail that refuses reception, and rejects the recipients for each sender. Reception refusal registration means for storing and managing reception refusal data to be registered, and when the number of reception refusal registrations of the sender exceeds a predetermined number,
The electronic mail of the sender includes not only the recipient who has registered the reception refusal, but also all-recipient reception refusal means that rejects the reception not only to the recipient designated as the destination of the electronic mail. Characteristic e-mail reception refusal device. 2. An e-mail reception refusal device for refusing reception of an e-mail, which accepts a refusal-of-receipt registration specifying a sender of an e-mail for refusing reception, Reception refusal registration means for storing and managing the reception refusal data to be registered, and reception permission data for accepting the reception permission registration specifying the sender of the e-mail to be permitted to receive, and registering the recipients permitted to receive for each of the senders And a reception permission registration unit that stores and manages the above, and when the number of registrations of the reception refusal is larger than the number of registrations of the reception permission, all the recipients who have designated the e-mail of the sender as a destination of the e-mail. An e-mail reception refusal device comprising: all-recipient reception refusal means for refusing reception of the e-mail. 3. The reception refusal registration means stores and manages group information of the recipients who have registered the reception refusal into groups according to a predetermined attribute, and the reception permission registration means includes the reception information. Regarding the recipients who have registered the permission, the group information in which the recipients are divided into groups according to a predetermined attribute is stored and managed, and the all-recipient reception refusal means further includes the number of registrations of the reception refusal for each group information. The number of registrations of the reception permission is compared, and only when the number of reception refusal registrations is larger than the number of reception permission registrations, the e-mail of the sender is received by all the recipients designated as the destination of the e-mail. The electronic mail reception refusal device according to claim 2, wherein the electronic mail reception refusal device is rejected. 4. The all-recipient reception refusal means further comprises:
3. The electronic mail reception refusal device according to claim 2, wherein the recipient who has registered the reception permission is permitted to receive the electronic mail of the sender. 5. An e-mail reception refusal device for refusing reception of an e-mail, the reception refusal registration specifying the sender of the e-mail refusing reception, and the reception refusal for each sender. A reception refusal mail registration unit that stores and manages reception refusal mail data for registering the text of the e-mail, and an e-mail with the same text as the text of the e-mail arrives, An e-mail reception refusal device comprising: all-recipient reception refusal means for refusing reception to all recipients designated as destinations. 6. An e-mail reception refusal device for refusing reception of an e-mail, the reception refusal registration specifying the sender of the e-mail refusing reception, and the refusal of reception for each said sender. Receiving refusal mail analysis data registration means for storing and managing reception refusal mail analysis data for registering semantic analysis data obtained by semantically analyzing the text of the e-mail, and when the e-mail arrives, the arrived e-mail is When the semantic analysis data has the same degree of similarity as or a predetermined value or more, all recipient reception refusal means for rejecting reception to all recipients designated as a destination of the electronic mail are provided. E-mail reception refusal device.