JP2003044402A - Device and method for communication, and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide Internet facsimile equipment and its communication method, which can prevent mistransmission to outside a company or a person except a specific person outside the company, and to provide a storage medium. SOLUTION: The Internet facsimile equipment 100 is equipped with a CPU 101, an in-company setting key 109a, and an in-company/out-company judgment part 113. When a user presses the in-company setting key 109a, the in-company/ out-company judgment part 113 rejects transmission when judging that the transmission destination is outside the company since the domain of the mail address of the machine does not match that of the mail address of the transmission destination.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device, a communication method therefor, and a storage medium, and more particularly to an Internet facsimile machine, a communication method therefor, and a storage medium.

[0002]

2. Description of the Related Art Conventionally, there has been known an Internet facsimile machine capable of transmitting and receiving a FAX by using the Internet instead of a public line network without incurring a high charge for international calls.

This Internet facsimile machine is
Usually, it is sent and received via the mail server to the sending and receiving destination specified by the mail address. As a method of preventing erroneous transmission at the time of sending, the method is to check whether the destination email address is registered in the device immediately before sending, and stop sending if it is not registered. Was there.

[0004]

However, according to the conventional method for preventing erroneous transmission, when the mail address of the transmission destination is registered in the device itself, the transmission is performed even if it is not the intended transmission destination. Cannot be canceled.

Therefore, when the Internet facsimile machine is designed to send the Internet facsimile to the mail address registered in each one-touch button, one-touch buttons other than the one-touch button in which the mail address of the intended transmission destination is registered. If you accidentally press the button, you could not prevent accidental transmission.

When such an Internet facsimile machine is used in business, it is necessary to prevent the in-house document that was sent to a certain department in the company from being mistakenly transmitted to the outside by mistakenly pressing the one-touch button as described above.

[0007] In addition, when collaborating with a specific person outside the company, it is necessary to send the in-house document to a specific person outside the company, but it is necessary to prevent erroneous transmission to other people outside the company. is there.

An object of the present invention is to provide a communication device, a communication method therefor, and a storage medium capable of preventing erroneous transmission to a person other than the outside or a specific person outside the company.

[0009]

In order to achieve the above-mentioned object, the communication device according to claim 1 communicates between its own device inside the company and a transmission destination inside or outside the company by a mail address including a domain. In the communication device to perform, a domain determination unit that determines whether or not the domain matches the email address of the own device and the email address of the transmission destination,
When the domains match, the transmission destination is inside the company, and when the domains do not match, it is determined that the transmission destination is outside the company.

According to a second aspect of the present invention, in the communication apparatus according to the first aspect, the domain comprises sub-domains of a plurality of levels, and the domain discriminating means is one of the plurality of levels. The e-mail address of the machine and the e-mail address of the transmission destination determine whether or not the subdomains match, and when the subdomains match, the transmission destination is inside the company, and the subdomain is If they do not match, it is determined that the transmission destination is outside the company.

According to a third aspect of the present invention, in the communication apparatus according to the first or second aspect, the transmission destination is set to either the inside or the outside of the transmission destination, and the transmission destination is the transmission destination. In the case of being set as an in-house, when the determination means determines that the transmission destination is outside the company, a prohibition means for prohibiting communication to the transmission destination is provided.

A communication device according to a fourth aspect is the communication device according to any one of the first to third aspects, wherein the self-device communicates with the transmission destination via a mail server in the same network. It is characterized by performing.

According to a fifth aspect of the present invention, in the communication device according to any one of the first to third aspects, the self-device serves as the transmission destination via a mail server connected via a public line. It is characterized by performing communication.

A communication apparatus according to a sixth aspect is the communication apparatus according to any one of the first to fifth aspects, wherein the communication apparatus is an Internet facsimile machine.

In order to achieve the above object, a communication device according to a seventh aspect is a communication device for communicating between a self-device within a company and a transmission destination inside or outside the company by a mail address including a domain. A domain group storing means for storing the domain as a domain group, a domain determining means for determining whether the domain of the mail address of the transmission destination matches one of the plurality of domains, and the domain And a determination unit that determines that the transmission destination is outside the domain group when the transmission destination is within the domain group and the domains do not match.

A communication device according to an eighth aspect is the communication device according to the seventh aspect, characterized in that said domain group storage means stores a plurality of domain groups.

A communication device according to a ninth aspect is the communication device according to the seventh or eighth aspect, further comprising: transmission destination setting means for setting the transmission destination as either inside the domain group or outside the domain group; When the destination is set as the domain group,
When the determination means determines that the transmission destination is outside the domain group, it includes a prohibition means for prohibiting communication to the transmission destination.

A communication apparatus according to a tenth aspect is the communication apparatus according to any one of the seventh to ninth aspects, in which the own apparatus communicates with the transmission destination via a mail server within the same network. It is characterized by performing.

The communication device according to claim 11 is the communication device according to any one of claims 7 to 9, wherein the self-device is the transmission destination via a mail server connected via a public line. It is characterized by performing communication.

A communication apparatus according to a twelfth aspect is the communication apparatus according to any one of the seventh to eleventh aspects, wherein the communication apparatus is an Internet facsimile machine.

In order to achieve the above object, a communication method according to a thirteenth aspect is a communication method of a communication device for performing communication between a self-device inside a company and a transmission destination inside or outside the company by a mail address including a domain. In the domain determination step of determining whether or not the domain matches the email address of the own machine and the email address of the transmission destination, and when the domains match, the transmission destination is in-house,
And a determination step of determining that the transmission destination is outside the company when the domains do not match.

The communication method according to claim 14 is the communication method according to claim 13.
In the communication method described above, the domain comprises a plurality of levels of sub-domains, and in the domain discrimination step, the one of the plurality of levels includes the sub-address of the mail address of the own device and the mail address of the transmission destination. It is determined whether or not the domains match, and in the determination step, when the subdomains match, it is determined that the transmission destination is inside the company, and when the subdomains do not match, the transmission destination is outside the company. Is characterized by.

The communication method according to claim 15 is the communication method according to claim 13.
Or in the communication method according to 14, the transmission destination setting step of setting the transmission destination as one of the inside of the company or the outside of the company, and the transmission destination in the determination step when the transmission destination is set as the inside of the company When it is determined that the person is outside the company, a prohibiting step of prohibiting communication to the transmission destination is included.

A communication method according to claim 16 is the communication method according to claim 13.
16. The communication method according to any one of 1 to 15, wherein the own device communicates with the transmission destination via a mail server in the same network.

The communication method according to claim 17 is the communication method according to claim 13.
16. The communication method according to any one of 1 through 15 is characterized in that the own device communicates with the transmission destination via a mail server connected via a public line.

The communication method according to claim 18 is the communication method according to claim 13.
18. The communication method according to any one of items 1 to 17, wherein the communication method is an Internet facsimile machine.

In order to achieve the above object, a communication method according to a nineteenth aspect is a communication method of a communication device for performing communication between a self-device inside a company and a transmission destination inside or outside the company by a mail address including a domain. In a domain group storing step of storing a plurality of domains as a domain group, a domain determining step of determining whether or not the domain of the mail address of the transmission destination matches one of the plurality of domains, and the domain When the addresses match, the sending destination is within the domain group, and when the domains do not match, the sending destination is outside the domain group.

The communication method according to claim 20 is the method according to claim 19.
In the communication method described above, the domain group storing step stores a plurality of domain groups.

The communication method according to claim 21 is the communication method according to claim 19.
Or the transmission destination setting step of setting the transmission destination as either within the domain group or outside the domain group; and in the case where the transmission destination is set within the domain group, When it is determined that the transmission destination is outside the domain group in the determination step, a prohibition step of prohibiting communication to the transmission destination is provided.

The communication method according to claim 22 is the communication method according to claim 19.
22. The communication method according to any one of 21 to 21, wherein the own device communicates with the transmission destination via a mail server in the same network.

A communication method according to claim 23 is the communication method according to claim 19.
22. The communication method according to any one of 21 to 21, wherein the own device communicates with the transmission destination via a mail server connected via a public line.

The communication method according to claim 24 is the communication method according to claim 19.
24. The communication method according to any one of items 23 to 23, wherein the communication device is an Internet facsimile device.

In order to achieve the above object, the storage medium according to claim 25 is a communication method of a communication device for performing communication between a self-device in a company and a transmission destination inside or outside the company by a mail address including a domain. In a storage medium storing a program for executing the program, the program matches the domain with a domain determination module that determines whether or not the domain matches the mail address of the own device and the mail address of the transmission destination. In this case, the transmission destination is inside the company, and when the domains do not match, it is determined that the transmission destination is outside the company.

To achieve the above object, the storage medium according to claim 26 is a communication method of a communication device for performing communication between a self-device within a company and a transmission destination inside or outside the company by a mail address including a domain. In a storage medium storing a program for executing the above, the program includes a domain group storage module that stores a plurality of domains as a domain group, and whether the domain of the mail address of the transmission destination matches one of the plurality of domains. A domain determination module that determines whether or not a determination module that determines that the transmission destination is within the domain group when the domains match, and determines that the transmission destination is outside the domain group when the domains do not match. And is provided.

[0035]

DETAILED DESCRIPTION OF THE INVENTION A communication device according to a first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing the configuration of Ethernet (registered trademark) to which the communication device according to the first embodiment of the present invention is applied. In the present embodiment, the communication device is an internet facsimile device, and the system to which this internet facsimile device is applied is not limited to Ethernet (registered trademark) as shown below, but any type of intranet can be used. It may be in the form.

In FIG. 1, Ethernet (registered trademark)
Reference numeral 1 denotes a mail server 2 that sends and receives electronic mail and Internet facsimiles via the Internet, an Internet facsimile apparatus 100 that sends and receives Internet facsimiles via the mail server 2, and a client 3 that sends and receives electronic mails via the mail server 2. 4, a hub 5 composed of 10BASE-T or the like that relays the devices forming the Ethernet (registered trademark) 1, and a router 6 connected to the Internet via a dedicated line, which are connected via a communication line. Has been done.

In both Internet facsimile and electronic mail, the sending and receiving destinations are specified by the mail address whose mail address system is "user name @ domain name". Is done like.

The mail server 2 sends an Internet facsimile addressed to the Internet facsimile machine 100 or an electronic mail addressed to the clients 3 and 4 from within the Ethernet (registered trademark) 1 or via the hub 5 and the router 6. When it is received from the connected Internet, the Internet facsimile or electronic mail is transmitted to each receiving destination.

Also, the Internet facsimile machine 1
As described above, 00 receives from the mail server 2 an Internet facsimile whose destination is its own, and also transmits an Internet facsimile in which a predetermined transmission destination is designated by a mail address via the mail server 2.

Similarly, the clients 3 and 4 receive from the mail server 2 the electronic mails having the respective receiving destinations as described above, and at the same time receive the electronic mails in which the predetermined transmission destinations are designated by the mail addresses from the mail server 2. To send over.

FIG. 2 is a block diagram of the Internet facsimile machine 100 shown in FIG.

In FIG. 2, the Internet facsimile machine 100 is an Internet facsimile machine 10.
0 CPU 101 for controlling the whole, ROM 102 for storing programs, RAM 103 for storing work data, image data, user data, one-touch dial data, etc., and Ethernet (registered trademark) 1 connected to Ethernet (registered trademark) Trademark) I / F 104, a reading unit 105 for reading a transmission image / copy image, a recording unit 107 for recording a reception image / copy image, an in-house setting key 109a for setting a transmission destination, and a transmission destination setting. An external setting key 109b to be outside the company, a ten-key 110 for inputting a telephone number, a one-touch key 111 for registering a telephone number and transmitting it with one touch, an operation unit 108 having a ten-key 110, a one-touch key 111, an LCD display 112, , The in-house / outside determination unit 113 which performs in-house / outside determination processing. For example, it is connected via a communication line.

When the in-house setting key 109a is pressed, the CPU 101 recognizes that the image to be transmitted is for the company, and when the outside setting key 109b is pressed, the image to be transmitted is outside the company. Recognize that it is for.

The internal / external determination processing performed by the internal / external determination unit 113 is whether the domain name of the email address registered as the email address of the machine matches the domain name of the destination email address. This is a process of determining and determining that the transmission destination is inside the company when the domain name of the transmission destination mail address matches the mail address of the own device.

For example, the mail address of the own device is "XXXXX"
@ △△△. company. co. jp ”and the destination mail address is“ □□□ @ ΔΔΔ. cam
pany. co. jp ”, the domain names of the email address are both“ company. co. j
Since it is p ″, the in-house / outside determination unit 113 determines that the transmission destination is inside the company.

On the other hand, the mail address of the own device is "XXXXX @
△ △ △. company. co. jp ”and the mail address of the transmission destination is“: ▲▲▲ @ ●●● .. **
*. co. jp ”, the domain name of the mail address is different, so the in-house / outside determination unit 113 determines that the transmission destination is outside the company.

FIG. 3 is a flowchart of an erroneous transmission prevention process executed by the CPU 101 in FIG.

First, the CPU 101 presses a transmission button (not shown) of the Internet facsimile machine 100,
When transmission of the Internet facsimile is started (step S100), it is determined whether or not either the in-house setting key 109a or the outside setting key 109b is pressed (step S101).

As a result of the determination in step S101, when neither the in-house setting key 109a nor the outside setting key 109b is pressed, a process of directly transmitting the Internet facsimile to the transmission destination (hereinafter referred to as "transmission process"). Perform (step S104).

On the other hand, as a result of the determination in step S101, when either the in-company setting key 109a or the outside-company setting key 109b is pressed, whether the pressed key is the in-company setting key 109a, that is, the transmission is performed. It is determined whether the destination is set within the company (step S102).

As a result of the determination in step S102, when the setting of the transmission destination is not in the office, that is, the key pressed is the outside setting key 109b, and the setting of the transmission destination is outside the company, the transmission processing is directly performed. Do (Step S1
04).

On the other hand, as a result of the determination in step S102, when the setting of the transmission destination is inside the company, the inside / outside judgment unit 1
The above-mentioned in-house / outside determination process is performed in 13 to determine whether or not the transmission destination is in-house (step S103).

As a result of the determination in step S103, when the transmission destination is inside the company, the transmission processing is performed as it is (step S104).

On the other hand, as a result of the determination in step S103, when the transmission destination is not inside the company, that is, when it is outside the company, the transmission is rejected (step S105). At the same time,
A transmission refusal message is displayed on an LCD display (not shown) to notify the user that the transmission is incorrect. As a result, it is possible to reliably prevent erroneous transmission.

According to the first embodiment of the present invention, when the user presses the in-company setting key 109a (YES in step S101), the domain name is composed of the mail address of the own device and the mail address of the transmission destination. When the transmission destination is outside the company (step S1)
If NO in 03, the transmission is rejected (step S10).
5) It is possible to prevent internal transmissions from being transmitted outside the company.

Next, a communication device according to a second embodiment of the present invention will be described with reference to the drawings.

FIG. 4 is a block diagram of a communication device according to the second embodiment of the present invention.

In FIG. 4, among the components of the Internet facsimile machine 200 as the communication device according to the second embodiment of the present invention, the same components as those of FIG. 2 are designated by the same reference numerals. The duplicate description will be omitted.

The configuration of the Internet facsimile apparatus 200 and the Ethernet (registered trademark) configuration to which this apparatus is applied are the same as those of the Internet facsimile apparatus 100 according to the first embodiment (FIG. 2) and this apparatus. The configuration is basically the same as that of the Ethernet (registered trademark) (FIG. 1), except that the in-house / outside determination unit 113 replaces the in-house / outside determination unit 213, and a sub domain level storage unit 214 is provided. .

The in-house / outside determination unit 213 performs in-house / outside determination processing described later, and the sub-domain level storage unit 21.
4 stores the level of the subdomain registered by the user.

The above-mentioned sub-domain constitutes a domain, and its level is, as shown in FIG. 5, from the right, the first level representing a country or the like and the second level representing an attribute of a region name or an organization. , A third level representing a company, etc., and a fourth level representing an organization within the company.

The internal / external determination processing performed by the internal / external determination unit 213 is the same as the internal / external determination processing in the first embodiment, in which the domain name is completely defined by the mail address of the transmission destination and the own mail address. When they match, the transmission destination is determined to be inside the company, whereas when the registered subdomain level names match, the transmission destination is determined to be inside the company.

For example, the sub domain level storage unit 214
The levels of subdomains stored in are the first to third levels, and the e-mail address of the machine is "XXX @@ △△△ .cam.
pany. co. jp ”, the destination email address is
When it is “□□□@○○○.company.co.jp”, the subdomains of both mail addresses have the first level name “jp”, the second level name “co”, and the third level. Is “company” and all are the same, the in-house / outside determination unit 213 determines that the transmission destination is in-house.

According to the second embodiment of the present invention, CP
U101 executes the erroneous transmission prevention process of FIG. 3 as in the first embodiment, but the in-house / outside determination process performed in step S103 is the in-house / outside determination unit 213 described above.
Is performed by the sub domain level storage unit 214.
By setting the levels of the sub-domains stored in (1) to (3) to (1) to (3), it is possible to allow the internal / external determination unit 213 to determine another division within the company as internal.

Next, a communication device according to the third embodiment of the present invention will be described with reference to the drawings.

FIG. 6 is a block diagram of a communication device according to the third embodiment of the present invention.

In FIG. 6, among the components of the Internet facsimile machine 300 as the communication device according to the third embodiment of the present invention, the same components as those of FIG. 2 are designated by the same reference numerals. The duplicate description will be omitted.

The structure of the Internet facsimile machine 300 according to the third embodiment and the structure of the Ethernet (registered trademark) to which this apparatus is applied are the same as those of the Internet facsimile machine 100 according to the first embodiment (see FIG. 2). ) And the configuration of Ethernet (registered trademark) to which this device is applied (Fig. 1), but
The outside judgment unit 113 is the inside / outside judgment unit 31 of the domain group.
3 and that the domain group storage unit 314 is provided.

The domain group inside / outside judgment unit 313
A domain group storage unit 314 stores the names of a plurality of domains as the names of the domains belonging to the domain group by performing the inside / outside domain group determination process described below.

In the domain group inside / outside determination processing performed by the domain group inside / outside determination unit 313, one of the domain names stored in the domain group storage unit 314 matches the domain name of the mail address of the transmission destination. When it is, the transmission destination is judged to be inside the company.

According to the third embodiment of the present invention, CP
U101 executes the erroneous transmission prevention process of FIG. 3 as in the first embodiment, but in step S103, the above-mentioned domain group inside / outside judgment process is performed instead of the inside / outside judgment process. For example, when a group including the outside is formed by a patent disclosure contract, and when collaborating across companies, such as when exchanging information within this group, errors other than specific persons outside the domain group Transmission can be prevented.

Further, in the third embodiment,
Although one domain group storage unit 314 is provided, a plurality of domain group storage units 314 may be provided and one of them may be selected for each transmission. This allows a plurality of user groups to use one Internet facsimile machine 300.

Further, the Internet facsimile machines according to the first to third embodiments are connected to the Ethernet (registered trademark) 1 by the Ethernet (registered trademark) I / F 104, and the mail server 2 in the Ethernet (registered trademark) 1 is connected. I used to use a modem instead of the Ethernet (registered trademark) I / F 104 to connect to a provider via the public telephone network using this modem and use this provider as a mail server for Internet facsimile. You may send and receive.

Further, it goes without saying that the present invention can be applied to a case where a storage medium storing a program module of software for realizing the functions of the above-described embodiments is achieved by supplying a program to a system or an apparatus. Nor. In this case, the program module itself read from the storage medium realizes the novel function of the present invention, and the storage medium storing the program constitutes the present invention.

The program module in each of the above-mentioned embodiments is stored in the ROM 102, and the storage medium for supplying the program module is, for example, a floppy (registered trademark) disk, a hard disk, an optical disk (registered trademark), a magneto-optical disk. , CD-ROM, C
A DR, a DVD, a magnetic tape, a non-volatile memory card, or the like can be used.

[0077]

As described above in detail, according to the communication device of claim 1, the communication method of claim 13, and the storage medium of claim 25, the mail address and the transmission destination of the own device can be used. When the domain matches with the mail address, it is determined that the transmission destination is inside the company, and when the domains do not match, the transmission destination is outside the company, and thus it is possible to prevent erroneous transmission to anyone other than the person inside the company.

A communication device according to claim 2, and claim 14.
According to the communication method described, at one of the levels of subdomains, when the subdomain matches the email address of the device itself and the email address of the recipient, the recipient is inside the company, and the subdomain does not match. Determines that the transmission destination is outside the company, so that, for example, another department within the company that differs only in the fourth-level subdomain can be judged as inside the company.

A communication device according to claim 3 and claim 15
According to the communication method described, when the transmission destination is set to be inside the company, when it is determined that the transmission destination is outside the company, the communication to the transmission destination is prohibited, so that the Internet facsimile for inside It can be surely prevented from being transmitted outside the company.

A communication device according to claim 4, and claim 16.
According to the communication method described, since the device itself communicates with the transmission destination via the mail server in the same network, the Internet facsimile machine can be used only by connecting to the existing Ethernet (registered trademark) in the company. can do.

A communication device according to claim 5, and claim 17.
According to the communication method described, since the device itself communicates with the transmission destination via the mail server connected via the public line, the Internet facsimile machine does not need a network such as Ethernet (registered trademark) in the company. Can be used.

According to the communication device of claim 7, the communication method of claim 19, and the storage medium of claim 26,
Stores multiple domains as a domain group and determines whether the domain of the email address of the destination matches one of the multiple domains stored as the domain group. If the domains match, the destination is the domain group. If the domain group is formed for collaborative work beyond the company, it is judged that the transmission destination is outside the domain group when the domain does not match, and if the domain recipient is not a specific person outside the domain group. It is possible to prevent erroneous transmission to.

A communication device according to claim 8 and claim 20.
According to the communication method described, since a plurality of domain groups are stored, a plurality of user groups can use one Internet facsimile machine.

A communication device according to claim 9 and claim 21.
According to the communication method described, when the transmission destination is set as within the domain group, if it is determined that the transmission destination is outside the domain group, the communication to the transmission destination is prohibited. It is possible to surely prevent the Internet facsimile from being accidentally transmitted outside the domain group.

A communication device according to claim 10 and claim 2.
According to the communication method described in 2, since the device itself communicates with the transmission destination via the mail server in the same network, the Internet facsimile machine can be connected to the existing Ethernet (registered trademark) in the company. Can be used.

A communication device according to claim 11 and claim 2.
According to the communication method described in No. 3, since the device itself communicates with the transmission destination via the mail server connected via the public line, the Internet facsimile machine does not have a network such as Ethernet (registered trademark) in the company. Can also be used.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of Ethernet (registered trademark) to which a communication device according to a first embodiment of the present invention is applied.

FIG. 2 is a block diagram of the Internet facsimile machine 100 in FIG.

FIG. 3 is a flowchart of an erroneous transmission prevention process executed by a CPU 101 in FIG.

FIG. 4 is a block diagram of a communication device according to a second embodiment of the present invention.

FIG. 5 is an explanatory diagram showing levels of subdomains of email addresses.

FIG. 6 is a block diagram of a communication device according to a third embodiment of the present invention.

[Explanation of symbols]

1 Ethernet (registered trademark) 2 Mail server 3, 4 Client 5 Hub 6 Router 100, 200, 300 Internet facsimile apparatus 101 CPU 102 ROM 103 RAM 104 Ethernet (registered trademark) I / F 106 Reading unit 107 Recording unit 108 Operation unit 109a Internal setting key 109b External setting key 110 Numeric keypad 111 One-touch key 112 LCD display sections 113, 213, Internal / external determination section 214 Sub domain level storage section 313 Domain group internal / external determination section 314 Domain group storage section

Claims (26)

[Claims] 1. A communication device for performing communication between an in-house own device and an in-house or outside send destination by a mail address including a domain, wherein the mail address of the own device and the send destination mail address A domain determining unit that determines whether the domains match, and a determining unit that determines that the transmission destination is inside the company when the domains match, and determines that the transmission destination is outside the company when the domains do not match. A communication device comprising: 2. The domain comprises a plurality of levels of sub-domains, and the domain discriminating means uses the sub-domain including the e-mail address of the own device and the e-mail address of the transmission destination in one of the plurality of levels. , And the determination means determines that the transmission destination is inside the company when the subdomains match, and determines that the transmission destination is outside the company when the subdomains do not match. The communication device according to claim 1, wherein the communication device is a communication device. 3. A transmission destination setting means for setting the transmission destination as one of the inside of the company and the outside of the company, and when the transmission destination is set as the inside of the company, the judging means sets the transmission destination as the outside of the company. The communication device according to claim 1 or 2, further comprising: a prohibition unit that prohibits communication to the transmission destination when it is determined to be. 4. The communication device according to claim 1, wherein the own device communicates with the transmission destination via a mail server in the same network. 5. The communication device according to claim 1, wherein the own device communicates with the transmission destination via a mail server connected via a public line. 6. The communication device according to claim 1, wherein the communication device is an Internet facsimile machine. 7. A communication device that communicates between a self-device in a company and a transmission destination inside or outside the company by a mail address including a domain, and a domain group storage unit that stores a plurality of domains as a domain group, Domain determining means for determining whether or not the domain of the email address of the transmission destination matches one of the plurality of domains; and when the domains match, the transmission destination is within the domain group, and the domain is A communication device comprising: a determination unit that determines that the transmission destination is outside the domain group when they do not match. 8. The communication device according to claim 7, further comprising a plurality of the domain group storage means. 9. A transmission destination setting means for setting the transmission destination as either inside or outside the domain group, and when the transmission destination is set as inside the domain group, the judging means 9. The communication device according to claim 7, further comprising a prohibition unit that prohibits communication to the transmission destination when it is determined that the transmission destination is outside the domain group. 10. The communication device according to claim 7, wherein the own device communicates with the transmission destination via a mail server in the same network. 11. The communication device according to claim 7, wherein the own device communicates with the transmission destination via a mail server connected via a public line. 12. The communication device comprises an Internet facsimile machine as claimed in claim 7.
The communication device according to any one of 1. 13. A communication method of a communication device for performing communication between an in-house own device and an in-house or outside send destination by an email address including a domain, the email address of the own device and the email address of the send destination. And a domain determination step of determining whether or not the domains match, and a determination of determining that the transmission destination is inside the company when the domains match, and determining that the transmission destination is outside the company when the domains do not match. A communication method of a communication device, comprising: 14. The domain comprises a plurality of levels of sub-domains, and in the domain discrimination step, the sub-domain includes the mail address of the own device and the mail address of the transmission destination in one of the plurality of levels. Is determined, and in the determination step, when the subdomains match, it is determined that the transmission destination is inside the company, and when the subdomains do not match, it is determined that the transmission destination is outside the company. 14. The communication method according to claim 13, which is characterized in that. 15. A transmission destination setting step of setting the transmission destination as one of the inside of the company and the outside of the company, and a case where the transmission destination is set as the inside of the company,
15. The communication method according to claim 13, further comprising a prohibiting step of prohibiting communication to the transmission destination when the transmission destination is determined to be outside the company in the determination step. 16. The communication method according to claim 13, wherein the own device communicates with the transmission destination via a mail server in the same network. 17. The communication method according to claim 13, wherein the own device communicates with the transmission destination via a mail server connected via a public line. 18. The method according to claim 13, wherein the communication method comprises an Internet facsimile machine.
7. The communication method according to any one of 7. 19. In a communication method of a communication device for performing communication between a self-device in a company and a transmission destination inside or outside the company by a mail address including a domain, a domain group storage for storing a plurality of domains as a domain group. A step, a domain determination step of determining whether or not the domain of the email address of the transmission destination matches one of the plurality of domains, and when the domains match, the transmission destination is within the domain group, And a step of determining that the transmission destination is outside the domain group when the domains do not match. 20. The communication method according to claim 19, wherein the domain group storing step stores a plurality of domain groups. 21. A transmission destination setting step of setting the transmission destination as either within the domain group or outside the domain group; and in the case of setting the transmission destination within the domain group, in the determining step. The communication method according to claim 19 or 20, further comprising: a prohibition step of prohibiting communication to the transmission destination when it is determined that the transmission destination is outside the domain group. 22. The communication method according to claim 19, wherein the own device communicates with the transmission destination via a mail server in the same network. 23. The communication method according to claim 19, wherein the own device communicates with the transmission destination via a mail server connected via a public line. 24. The communication device comprises an Internet facsimile machine as claimed in claim 19.
The communication method according to any one of 3 above. 25. A storage medium storing a program for executing a communication method of a communication device, which performs communication between a self-device in a company and a transmission destination inside or outside the company by a mail address including a domain, wherein the program is: A domain determination module that determines whether or not the domain matches the email address of the own machine and the email address of the transmission destination, and when the domains match, the transmission destination is inside the company and the domains do not match. And a determination module that determines that the transmission destination is outside the company. 26. A storage medium storing a program for executing a communication method of a communication device, which communicates between a self-device in a company and a transmission destination inside or outside the company by a mail address including a domain, wherein the program is: A domain group storage module that stores a plurality of domains as a domain group, a domain determination module that determines whether or not the domain of the email address of the transmission destination matches one of the plurality of domains, and the domain matches And a determination module that determines that the transmission destination is outside the domain group when the transmission destination is within the domain group and the domains do not match.