JPH10247936A - Electronic mail transmission and reception system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic mail transmission and reception system by which newly arrived messages are confirmed without an operation such as intended log-in to a network by the user to confirm the arrival of new messages. SOLUTION: An electronic mail is sent by using a radio transmission means 108 and received automatically by a time decided by a receiver side. In this case, when generating an electronic mail by an electronic mail sender, the security is set and a security degree discrimination means 102 discriminates a level of the security and a selection means 105 selects not all electronic mail texts but only a required part and the selected part is transmitted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an e-mail transmission / reception system capable of transmitting / receiving a message by connecting a plurality of terminals via a line, and more particularly, to an e-mail transmission / reception system without intentionally performing an operation on a receiver side. The present invention relates to an electronic mail transmission / reception system capable of confirming the presence or absence of a transmitted message.

[0002]

2. Description of the Related Art In recent years, with the development of networks, e-mail transmission / reception systems capable of transmitting / receiving messages via networks such as the Internet and LANs (Local Area Networks) have become widespread.

[0003] When the number of transmitted and received messages increases, there may be a case where it is desired to simultaneously transmit messages having substantially the same contents to a plurality of other parties, although they differ in detail, to the other parties belonging to the same group. . In such a case, it is necessary to delete or correct unnecessary message portions depending on the other party, and to create mail individually. Therefore, for example, Japanese Patent Application Laid-Open No. 7-212391
As shown in the publication, the format of a message to be transmitted and received is devised, and a public area and a private area are designated and transmitted with respect to an input data area. In some cases, the private area is made public only to specific parties designated as "public." By doing so, it is possible to avoid the trouble of creating a large number of e-mails for each partner, and to avoid wasting the storage area of the system.

[0004] As shown in Japanese Patent Application Laid-Open No. 7-288544, by assigning importance as a mail attribute to a predetermined one of a large number of mails,
Others allow recipients to quickly find high-priority emails and open them.

[0005]

The conventional e-mail transmission / reception system is configured as described above. To check whether a new e-mail, that is, an unread e-mail has arrived at itself, It is necessary for the user to deliberately operate his / her own terminal to check the reception box, etc., and if a network is used by a dial-up method, unnecessary telephone charges will be incurred. There was a point.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. In order to confirm the arrival of a new message, a user does not need to intentionally log in to a network or the like. It is another object of the present invention to provide an electronic mail transmission / reception system capable of confirming whether a new message has arrived.

[0007]

An electronic mail transmitting / receiving system according to claim 1 of the present invention is an electronic mail transmitting / receiving system for transmitting an electronic mail having a predetermined format to a receiving user by using radio waves, A connection means for receiving an e-mail in which a transmission item is specified so that a transmission-side user composes the e-mail and transmits only a predetermined one of the items to the reception-side user; Extracting means for analyzing and extracting data corresponding to each item of the e-mail received by the connection means based on the format of the e-mail; and A transmission item discriminating means for discriminating a designated item, and receiving an output of the transmission item discriminating means, and as a transmission item by the transmitting user. And item selection means for selecting a constant item, in which a radio transmitting unit that transmits using radio waves the only data corresponding to the item selected by the item selection means as an e-mail.

According to a second aspect of the present invention, in the electronic mail transmitting and receiving system according to the first aspect of the present invention, the electronic mail to be transmitted is obtained by encrypting the transmitted electronic mail in the predetermined format. It is designed to be encrypted based on the content of the specified item and transmitted.

According to a third aspect of the present invention, in the electronic mail transmitting / receiving system according to the second aspect of the present invention, as the electronic mail transmitting / receiving system, an encryption system used for transmission / reception of a pay broadcast is used as the encryption system. This is done by using.

According to a fourth aspect of the present invention, in the electronic mail transmitting / receiving system according to the first aspect, the wireless transmitting means repeatedly transmits the electronic mail within a predetermined time. It is intended to continue.

According to a fifth aspect of the present invention, in the electronic mail transmitting / receiving system according to the first aspect, the wireless transmitting means designates the electronic mail as a destination of the electronic mail. The transmission is repeatedly performed until it is detected that the received user has transmitted an incoming call notification indicating that the electronic mail has been received.

According to a sixth aspect of the present invention, in the electronic mail transmitting / receiving system according to the first aspect, there is provided a wireless receiving means for receiving the electronic mail transmitted using the radio wave; An information processing means for extracting an e-mail addressed to the user from the received e-mail; a storage means for storing the e-mail extracted by the information processing means; and an electronic device for notifying that the e-mail addressed to the user has arrived. And a mail arrival notification means.

An electronic mail transmitting / receiving system according to a seventh aspect of the present invention is the electronic mail transmitting / receiving system according to the first aspect, further comprising a wired connection unit controlled by the information processing unit, The item designated as a transmission item by the user on the transmission side is extracted, and as a result, when it is determined that there is data treated as a non-transmission item, the above-described wired connection unit is operated and the non-transmission It requests the remaining data treated as items.

According to an eighth aspect of the present invention, in the electronic mail transmitting / receiving system according to the sixth aspect, when the received electronic mail is encrypted in the storage means, The decryption information for decrypting this is stored.

According to a ninth aspect of the present invention, in the electronic mail transmitting / receiving system according to the sixth aspect of the present invention, a user identification number as a recipient of the received electronic mail is stored in the storage means. And storing a plurality of user identification numbers associated with the user, wherein the information processing unit refers to the user identification number stored in the storage unit, and stores the user identification number stored in the received e-mail. The electronic mail corresponding to the user identification number is extracted.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is a block diagram showing a configuration of a transmission device side of an e-mail transmission / reception system according to Embodiment 1 of the present invention. In FIG. 1, reference numeral 100 denotes a device for receiving messages (e-mail) from a plurality of users. The connection means is, for example, a receiving device such as an antenna. 1
Reference numeral 01 denotes an extraction unit serving as an extraction unit for extracting confidentiality, a destination, a transmission source, a title, and contents of a text described in a format described later from an e-mail transmitted from a user. A confidential level discriminating means for receiving confidentiality information from the extracted information and determining a confidentiality level. 104 is the extraction means 101
A user determining unit that refers to the transmission source and the transmission destination of the e-mail from the information extracted in step (1) and determines whether or not this is registered in the user information storage unit 103. 105 receives the output of the confidential level discrimination 102, selects the information to be encrypted from among the information contained in the e-mail to be transmitted according to the confidentiality level, and transmits
6 is a selection means for outputting the result. 107 is a wired connection means such as a telephone line, and 108 is a wireless transmission means using a satellite or the like.

Next, an e-mail transmission operation will be described. First, the sender creates an e-mail in a format including confidentiality, transmission destination, transmission source, title, and text as shown in FIG. That is, destination, title,
Fill in the text and set the sensitivity of this email itself.

The created e-mail is so-called dial-up connected via, for example, a telephone line or the like, so that connection means 10 serving as a receiving unit of the system of the service provider is connected.
0 is received.

The received electronic mail is analyzed by the extracting means 101 in the format shown in FIG.
Extract information corresponding to each item. Among the extracted information, information relating to confidentiality is output to the confidentiality determining means 102, and information relating to the transmission destination and the transmission source is output to the user determining means 104.

The confidential level determining means 102 stores a table as shown in FIG. 3 which specifies the contents of the e-mail to be included in the broadcast and the encryption method. From information on density,
The transmission means and the information about the encryption method are selected by the selection unit 1
05 is output.

As shown in FIG. 3, the confidentiality information includes two items, confidentiality A and confidentiality B.
Is used to set a limit on transmission contents, and confidentiality B is used to determine an encryption method at the time of transmission for transmission contents specified by confidentiality A.

For example, if the confidential level A is "1", a command for selecting the whole mail is sent from the confidential level discriminating means 102 to the selecting means 105 at the subsequent stage, and the selecting means 105 selects the whole mail. Similarly, when the confidentiality A is “2”, the title and the transmission source information are selected by the selecting unit 105, and when the confidentiality is “3”, only the transmission source information is selected. Here, the sender information is, for example, the name or unique identification number (I
D) and the like.

Next, with respect to the secrecy B, if the secrecy B is "1", a command not to encrypt is sent to the encryption means 106 at the subsequent stage. Similarly, secrecy B is “2”
If so, a command to perform the satellite broadcasting encryption method is sent,
If the confidential level B is "3", a command for performing an encryption method unique to the electronic mail is sent to the encryption means 106 at the subsequent stage.

The encryption means 106 selects the selection means 1
The content selected in 05 is encrypted according to the command output from the confidential level discriminating means 102. At this time, the user information of the transmission source and the transmission destination is input from the user determination unit 104. In other words, in a normal scramble-based pay satellite broadcast or the like, an image is encrypted using user information so that only a limited number of users can descramble. When a command using the satellite broadcasting encryption method is transmitted from the confidential level discriminating unit 102 by using this as it is, the user information of the transmission destination user output from the user determining unit 104 is used. The information content selected by the selection means 105 is encrypted.

When a command for unique encryption is sent from the confidential level discriminating means 102, an encryption method prepared for electronic mail is used. This can be realized, for example, by setting a user-specific encryption key when registering a user in the service providing system. That is, the user A registers the e-mail key A, and the user B
Registers key B as an encryption key for e-mail.

Here, when the electronic mail is transmitted from the user A to the user B with the confidentiality of completely encrypting the entire text, that is, when the confidentiality A is specified as “1” and the confidentiality B is specified as “3”, the encryption is performed. The encrypting unit 106 receives the information of the user B from the user determining unit 104 and encrypts the entire text of the e-mail from the user A using the encryption key B of the user B registered therein. This encrypted e-mail is the encryption key B
Is decoded by using. That is, it can be decrypted by the user B who has the encryption key B.

As shown in FIG. 4, the above-described encryption scheme of secrecy B is formatted and transmitted, for example, in a format having an item called a scramble ID at the head of an electronic mail.

The e-mail created as described above is sent to the destination using the wired connection means 107 or the wireless transmission means 108. Here, when the confidentiality A of the created e-mail is "1", that is, when the sender selects to transmit the whole text of the e-mail and transmits it, and when the confidentiality B is "1" except,
The e-mail encrypted by the encryption means 106 is
For example, it is transmitted by the wireless transmission unit 108. If the secrecy B is "1", the encryption means 1
The entire electronic mail is transmitted by the wireless transmission unit 108 in a state in which the encryption by 06 is not performed.

As the radio transmission means 108, for example, a route such as a satellite broadcast is used, and transmission is performed continuously for a certain period of time, or repeatedly transmitted until the transmission destination receives. Whether the destination user has received the message is realized by, for example, a method in which the destination user notifies the service provider using a telephone line or the like. Further, when it is possible to confirm that the transmission destination user has received the e-mail, the service provider can notify the transmission source user of the confirmation.

Next, when the secrecy A is set to "2" in the e-mail at the time of transmission, the title and the source information are encrypted by the encryption means 106 except when the secrecy B is "1". Is transmitted using the wireless transmission means 108. The remaining part of the format shown in FIG. 4 except for the title and the source information is based on the title and the source information transmitted from the destination user using the wireless transmission means 108. When the user knows that the e-mail has arrived, the remaining e-mail can be downloaded and obtained by making a dial-up connection to the service provider and connecting to the wired connection means 107.

Next, the configuration of the receiving apparatus will be described.
The e-mail created as described above is sent by multiplexing a plurality of designated destination e-mails. FIG.
FIG. 1 is a block diagram showing a configuration of a receiving apparatus side of an electronic mail transmitting / receiving system. In the figure, reference numeral 500 denotes a first receiving antenna for receiving an electronic mail transmitted using terrestrial waves, and 501 denotes satellite communication. A second receiving antenna for receiving an e-mail sent using
502 detects whether or not the transmission destination of the received e-mail is set as a recipient, and if the transmission is to the self, the e-mail is configured using a storage medium such as an HDD. The information processing means 505 for outputting to the storage means 503 is a modem connected between the public line 507 and the telephone 506, and its operation is controlled by the information processing means 502. Reference numeral 504 denotes a television serving as a display unit for displaying the received e-mail. The information processing means 502 and the storage means 50
3. The modem 505 can be provided in the form of a so-called set-top box.

Next, an e-mail receiving operation will be described. The created e-mails are multiplexed and transmitted from the service provider in a format as shown in the schematic diagram of FIG. Here, a state is shown in which a service provider is sending e-mails to four users A to D. The information processing unit 502 receives and decodes the above information at regular intervals or constantly.
Detects whether an e-mail addressed to the user is included.
That is, the destination information is extracted from the information of the sequentially sent e-mails, compared with its own ID information stored in the storage means 503, and if they match, the e-mail is stored in the storage means 503. I do.

The following three modes can be cited as the modes of transmission and reception of the electronic mail. First, when the service provider continues to send an e-mail to the user for a certain period of time, the method in which the user B continues to send the e-mail for a certain period of time regardless of whether or not the user has received an e-mail. It is. In this case, the detection of the e-mail by the information processing means 502 may be automatically performed every predetermined time, for example, every 30 minutes, or every day.

The second method is to perform transmission during a time zone desired by the user on the receiving side. In this case, the user on the receiving side notifies the service provider in advance of the desired date or time zone, and an e-mail is sent at the specified date and time. Is what you do. That is, the detection of the electronic mail processing by the information processing means 502 may be automatically performed at the date and time notified to the service provider side.

The third method is a method in which the service provider continues transmission until receiving a notification from the user on the receiving side notifying that the transmitted electronic mail has been received. In this case, after confirming the existence of the e-mail addressed to itself, the information processing means 502 controls the modem 505 to dial the service provider and transmit a signal indicating that the e-mail has been received. Then, the service provider having received the notification stops sending the e-mail to the user at that time. The transmission of the e-mail to a user other than the user is continuously performed until a signal indicating that the e-mail has been received is transmitted. At this time, the detection of the electronic mail by the information processing means 502 may be automatically performed every predetermined time.

Next, the e-mail transmitted as described above is stored in the storage means 503, and is stored in the TV5.
The operation at the time of display on the display 04 will be described. Television is a widely used medium as is well known. Here, the description will be made on the assumption that the power is turned on when an electronic mail arrives. It is also assumed that the television remote control is provided with two buttons of “read e-mail” and “read e-mail later”.

When the e-mail transmitted as described above is stored in the storage means 503, as shown in FIG. 7A, a new, ie, unread, e-mail is displayed on the display unit 700 of the television 504. The icon 701 indicating arrival has been displayed in an overlapped manner. When the user, who is the recipient, selects the “read e-mail” button on the remote controller, as shown in FIG. 7B, for example, a list of received e-mails is displayed as a list display window 702 on the left side of the display unit 700. In addition to being displayed, the body of the e-mail is displayed as a body display window 703 on the right side of the display unit 700 in conjunction with selecting a predetermined one of the lists shown in the list display window 702 with a cursor or the like. Is done.

As described above, the confidentiality A is included in the transmitted e-mail. If “2” or “3” is set, at the stage when the e-mail is selected,
A connection is made to the service provider via the modem 505,
The title and the text of the e-mail are downloaded and displayed at predetermined positions in the list display window 702 and the text display window 703, respectively.

The above description has been made on the assumption that the television is turned on at the time of receiving the e-mail.
When the power of the television is not turned on, an icon 701 indicating reception of an e-mail is displayed on the display unit 700 when the power is turned on thereafter. After reading the e-mail text as described above, it is up to the user to save the e-mail in the storage unit 503 or discard it.

As described above, according to the first embodiment, an e-mail is transmitted by using a broadcast, so that a new e-mail addressed to the user can be transmitted even if the recipient does not intentionally perform a receiving operation. You can know if it has arrived. Also, if an e-mail is transmitted using a broadcast, a third party may receive the e-mail and know the contents thereof.
Make settings regarding confidentiality when creating an e-mail on the e-mail sender side, and select and send only the necessary part instead of the entire e-mail when actually sending it on the service provider side, The remaining part is requested by the receiver from the service provider by a method such as dial-up connection,
The confidentiality is high because we try to obtain this.

In the first embodiment, the case where only one user is the recipient of the e-mail has been described. However, for example, a family, a group, or the like has one main ID, and this has a child ID. The present invention can be similarly applied to an e-mail transmission / reception system that performs user management in a so-called family account format that is provided in a hierarchical manner.

Embodiment 2 Next, Embodiment 2 of the present invention
Will be described. In the first embodiment, the arrival of the e-mail is displayed on the display unit of the television. However, in the second embodiment, as shown in FIG. The monitor lamp 802 embedded in the frame is turned on.

In this way, the arrival of a new mail can be confirmed as long as the television 800 is on standby only, without having to watch the television broadcast. The screen will not be obstructed.

The monitor lamp may display characters and wishes, or may repeat a display operation of flashing a predetermined number of times according to the number of arrived e-mails, and then turning on. In addition, when there is a family account, the receiver can be easily identified by using a lamp or the like capable of emitting a plurality of colors so that the colors are different for each account.

It is to be noted that the monitor lamp is not provided on the television, but a remote control device of the television can be used for two-way communication, and this may be provided on the remote control device side. You may make it perform on the side.

Embodiment 3 Next, Embodiment 3 of the present invention
Will be described. In the first and second embodiments, the arrival of a new e-mail is displayed by a display means such as a television or a television remote controller. In the third embodiment, the arrival of an e-mail is notified. This is done aurally.

That is, in the configuration of the receiving apparatus shown in FIG. 5, upon receiving the e-mail, the information processing means 502 controls the modem 505 to register in advance that the e-mail has arrived by the receiver. Call the phone number that you saved and ring the phone. At this time,
A standard message for notifying of the arrival of the e-mail is registered in advance in the storage unit 503, and is reproduced when the user who is the recipient answers the telephone or when the answering machine answers the telephone. Can be recognized by voice. By doing so, it is possible to know the arrival of the e-mail even when the user who is the recipient is not in the room with the television at the time of receiving the e-mail.

Embodiment 4 Next, Embodiment 4 of the present invention
Will be described. In the first and second embodiments, the arrival of a new e-mail is displayed by a display means such as a television or a television remote controller. In the fourth embodiment, the arrival of an e-mail is notified. And the contents thereof are printed and output.

That is, in the configuration of the receiving apparatus shown in FIG. 5, upon receiving the e-mail, the information processing means 502 converts the fixed form notifying the arrival of the e-mail and the contents of the e-mail into a facsimile format. And modem 5
05, and connects it to a facsimile which is a destination registered by the receiver in advance, and outputs this.
By doing so, it is possible to know the arrival of the e-mail and the contents thereof even when the user who is the recipient is not in the room where the television is set when the e-mail is received.

In the fourth embodiment, the contents of the e-mail are also printed by facsimile. However, only the fixed text to notify the arrival of the e-mail is output, and the contents of the e-mail are displayed on a display device such as a television. May be checked.

Embodiment 5 FIG. Next, Embodiment 5 of the present invention
Will be described. In the third embodiment, the arrival of a new e-mail is notified to the user who is the recipient by telephone. However, in the fifth embodiment, not only the arrival of the e-mail but also the arrival of the new e-mail is notified. The content is also processed by the information processing device 502 and converted into a voice to be notified.

In this way, the arrival of the e-mail and the contents thereof can be known by voice even when the user who is the recipient is not in the room with the television when the e-mail is received.

In the first embodiment, a case has been described in which satellite broadcasting is used as the radio transmitting means 108. However, for example, by multiplexing electronic mail information with vertical blanking, broadcasting using current terrestrial waves is also possible. Can be realized.

[0054]

As described above, according to the electronic mail transmitting / receiving system according to the first aspect of the present invention, there is provided an electronic mail transmitting / receiving system for transmitting an electronic mail having a predetermined format to a receiving user using radio waves. A connection for receiving an e-mail in which transmission items are specified so that when the transmitting user composes the e-mail, only predetermined ones of the above items are transmitted to the receiving user. Means, extraction means for analyzing and extracting data corresponding to each item of the e-mail received by the connection means based on the format of the e-mail, from the extracted data, when creating the e-mail, Transmission item determining means for determining an item designated as a transmission item; receiving the output of the transmission item determining means; Item selection means for selecting an item designated by the user, and wireless transmission means for transmitting only data corresponding to the item selected by the item selection means as electronic mail using radio waves. There is an effect that the content to be transmitted can be changed, for example, the confidentiality of an important part of the mail can be increased.

Further, according to the electronic mail transmitting / receiving system of the second aspect of the present invention, in the electronic mail transmitting / receiving system of the first aspect, the transmitted electronic mail is encrypted in the predetermined format. Since the data is encrypted and transmitted based on the contents of the item specifying the method, there is an effect that the confidentiality can be further improved.

According to a third aspect of the present invention, in the electronic mail transmitting / receiving system according to the second aspect, the encryption is used for transmitting / receiving an existing pay broadcast. Since encryption is performed using an encryption method, there is an effect that encryption can be easily performed without introducing a new encryption system.

According to a fifth aspect of the present invention, there is provided the electronic mail transmitting / receiving system according to the first aspect, wherein the wireless transmitting means transmits the electronic mail to a destination of the electronic mail. Until it is detected that the e-mail has been received from the user specified in (2), the e-mail is sent repeatedly to the destination user. There is an effect that can be.

According to a sixth aspect of the present invention, in the electronic mail transmitting / receiving system according to the first aspect, there is provided a wireless receiving means for receiving the electronic mail transmitted using the radio wave. Information processing means for extracting an e-mail addressed to the user from the received e-mail; storage means for storing the e-mail extracted by the information processing means; and notification that the e-mail addressed to the user has arrived. E-mail arrival notification means to know the arrival of the e-mail addressed to the user without having to be conscious of receiving the e-mail, and save on telephone and other communication costs. There is an effect that can be.

According to a seventh aspect of the present invention, there is provided the electronic mail transmitting / receiving system according to the first aspect, further comprising a wired connection unit controlled by the information processing unit. By the processing means, the item specified as a transmission item by the user on the transmission side is extracted, and as a result, when it is determined that there is data treated as a non-transmission item, the wired connection means is operated, Since the remaining data treated as non-transmission items is requested, there is an effect that the confidentiality of an important part of the e-mail can be increased.

According to a ninth aspect of the present invention, there is provided the electronic mail transmitting / receiving system according to the sixth aspect, wherein the storage means stores in the storage means a user identification as a recipient of the received electronic mail. Storing a plurality of user identification numbers associated with the user, and the information processing means refers to the user identification number stored in the storage means and stores the user identification number in the received e-mail. Since the e-mail corresponding to the specified user identification number is extracted, a plurality of e-mails can be received by one receiver, and the communication band can be effectively used. .

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a transmission side of an electronic mail transmission / reception system according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing a format when an electronic mail is created by the electronic mail transmitting and receiving system according to the first embodiment.

FIG. 3 is a diagram showing setting contents of confidentiality used in a format when an electronic mail is created by the electronic mail transmitting and receiving system according to the first embodiment.

FIG. 4 is a schematic diagram showing a format of a transmission e-mail created based on a format when an e-mail is created by the e-mail transmission / reception system according to the first embodiment.

FIG. 5 is a block diagram showing a configuration of a receiving side of the electronic mail transmitting / receiving system according to the first embodiment of the present invention.

FIG. 6 is a schematic diagram for explaining a state when a plurality of multiplexed e-mails are transmitted in the e-mail transmission / reception system according to the first embodiment of the present invention.

FIG. 7 is a diagram for explaining a display state of a television, which is a configuration on the receiving side of the electronic mail transmission / reception system according to the first embodiment of the present invention.

FIG. 8 is a diagram for explaining a display state of a television which is a configuration of a receiving side of the electronic mail transmitting / receiving system according to the second embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 connection means 101 extraction means 102 confidentiality determination means 103 user information storage unit 104 user determination means 105 selection means 106 encryption means 107 wired connection means 108 wireless transmission means 500 first receiving antenna 501 second receiving antenna, 502 information Processing unit 503 Storage unit 504 Television 505 Modem 506 Telephone 507 Public line 700 Display unit 701 Icon 702 List display window 703 Body display window 800 Television 801 Display unit 802 Monitor lamp

Claims (9)

[Claims] 1. An e-mail transmission / reception system in which a transmission-side user inputs data according to defined items, receives the data, and transmits the data as an e-mail having a predetermined format to a receiving-side user by using radio waves. And when the transmitting user composes the e-mail, receives an e-mail in which transmission items are specified so that only predetermined ones of the above items are transmitted to the receiving user. Connecting means; extracting means for analyzing and extracting data corresponding to each item of the e-mail received by the connecting means based on the format of the e-mail; and Transmission item determination means for determining an item designated as a transmission item; receiving an output of the transmission item determination means; An electronic device comprising: an item selecting unit that selects an item designated as a unit; and a wireless transmitting unit that transmits only data corresponding to the item selected by the item selecting unit as electronic mail using radio waves. Mail sending and receiving system. 2. The e-mail transmission / reception system according to claim 1, wherein the e-mail to be transmitted is encrypted based on the content of an item specifying an encryption method described in the predetermined format and transmitted. Characteristic e-mail transmission and reception system. 3. The electronic mail transmission / reception system according to claim 2, wherein the encryption is performed by using an encryption method used for pay broadcast transmission / reception. 4. The electronic mail transmitting and receiving system according to claim 1, wherein said wireless transmitting means repeatedly transmits said electronic mail within a predetermined time. 5. The electronic mail transmitting / receiving system according to claim 1, wherein the wireless transmitting means receives the electronic mail from a user designated as a transmission destination of the electronic mail to notify that the electronic mail has been received. An e-mail transmission / reception system, wherein the e-mail transmission / reception system continuously transmits the notification repeatedly until it detects that the notification has been transmitted. 6. The electronic mail transmission / reception system according to claim 1, wherein: a wireless receiving means for receiving the electronic mail transmitted using the radio wave; and extracting an electronic mail addressed to itself from the received electronic mail. An electronic mail comprising: information processing means; storage means for storing an electronic mail extracted by the information processing means; and electronic mail arrival notification means for notifying that an electronic mail addressed to the user has arrived. Transmission / reception system. 7. The electronic mail transmission / reception system according to claim 1, further comprising: a wired connection unit controlled by the information processing unit, wherein the item designated as a transmission item by a user on the transmission side is transmitted by the information processing unit. Extracted, as a result, when it is determined that there is data treated as a non-transmission item, the wired connection means is operated to request the remaining data treated as a non-transmission item. E-mail sending and receiving system. 8. The e-mail transmission / reception system according to claim 6, wherein said storage means stores, when said received e-mail is encrypted, decryption information for decrypting said e-mail. E-mail transmission and reception system characterized by the above-mentioned. 9. The electronic mail transmission / reception system according to claim 6, wherein said storage means stores a user identification number serving as a recipient of said received electronic mail, and a plurality of user identification numbers associated with said user. The information processing means extracts an e-mail corresponding to the stored user identification number from the received e-mails with reference to the user identification number stored in the storage means. An e-mail transmission / reception system, characterized in that: