JP2004088336A - Communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication system capable of efficiently realizing an electronic mail environment with high immediacy. <P>SOLUTION: A service processing server 60 periodically searches newly arrived electronic mail that is addressed to service subscribers, not delivered yet to the subscribers and arrived in mail servers to which electronic mail terminals 10A, 10B, 10C or the like possessed by the service subscribers are connected while referencing the cross-reference among a first subscriber identifier stored in its internal storage device, addresses of the mail servers 30A, 30B, 30C or the like in the Internet 70, and a second subscriber identifier. When the server 60 searches out the newly arrived electronic mail, after reading the newly arrived electronic mail, the service processing server 60 extracts the outline of the newly arrived electronic mail and transmits the newly arrived electronic mail to a terminal 50 connected to a particular communication network together with the identification information of the newly arrived electronic mail. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a communication system, and more particularly, to a communication system for transmitting electronic mail using an Internet network.
[0002]
[Prior art]
In recent years, electronic mail has been widely used in communication systems including the Internet network. In such an e-mail, an Internet terminal device such as a personal computer or a mobile phone of a sender (hereinafter, referred to as a “sending terminal device”) is transmitted from an Internet terminal device such as a personal computer of a recipient or a mobile phone (hereinafter, “a receiving terminal”). Terminal device). In such electronic mail delivery, in general, a mail server in a domain to which a sender's Internet terminal device belongs (hereinafter, referred to as a "sending mail server") and a mail server in a domain to which a recipient's Internet terminal device belongs (Hereinafter, referred to as a “receiving mail server”).
[0003]
In such a communication system, an electronic mail is normally delivered in the following procedure. First, an e-mail is transmitted from the transmitting terminal to the transmitting mail server by designating the e-mail address of the receiving terminal. The transmitting server that has received the e-mail transmits the e-mail to the receiving mail server that performs the e-mail service for the domain in the specified e-mail address of the receiving terminal device via the Internet network. Thus, the electronic mail arrives at the receiving mail server and is stored in the receiving mail server. Thereafter, when a new electronic mail is read from the receiving terminal device to itself by an operation of the user of the receiving terminal device, the electronic mail is transmitted from the receiving mail server to the receiving terminal device. Thus, the e-mail is distributed from the transmitting terminal device to the receiving terminal device.
[0004]
That is, upon delivery of the electronic mail, the electronic mail is automatically and promptly delivered from the transmitting terminal device to the receiving mail server. On the other hand, the final stage of e-mail delivery, from the receiving mail server to the receiving terminal device, is the arrival of the e-mail at the receiving mail server and, in principle, the reception is performed independently of this arrival. The e-mail is delivered to the receiving terminal device after a lapse of time between the e-mail reading operation by the user of the side terminal device.
[0005]
[Problems to be solved by the invention]
As described above, in the electronic mail environment provided by the conventional communication system, it is not possible to specify the time until the electronic mail transmitted by the sender is received by the receiver. For this reason, even if the sender sends an e-mail for emergency notification, a long time often elapses before the e-mail is received by the recipient.
[0006]
In recent years, it is not uncommon for individuals to have a plurality of terminal devices, such as personal computers and mobile phones, that can use e-mail services, for example, for business or hobby use. Each of the plurality of terminals owned by the same individual has an individual e-mail address, and is provided with a service provided by a mail server that manages an e-mail service that is individually subscribed. In such a case, a plurality of terminal devices owned by the same individual may be provided with an e-mail service by the same mail server, but may not be. In any case, it is necessary to operate each terminal device in order to confirm whether or not there is an e-mail transmitted to each terminal device.
[0007]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a communication system capable of realizing an efficient and highly responsive e-mail environment.
[0008]
[Means for Solving the Problems]
A communication system according to the present invention provides at least one mail server connected to an Internet network, and data distribution to a terminal device connected to the Internet network and a specific communication network and connected to the specific communication network owned by a service subscriber. A service processing server for controlling the service processing server, the service processing server comprising: a first subscriber identifier of the service subscriber relating to a service provided by the service processing server; and a service subscriber of the at least one mail server. Storage means for storing a correspondence between an address in the Internet network and a second subscriber identifier of the service subscriber regarding a service provided by each of the at least one mail server; and the service subscriber in the at least one mail server. New incoming calls addressed to E-mail search means for periodically searching for mail; e-mail reading means for reading new e-mail addressed to the service subscriber by the e-mail search means; and the new e-mail read by the e-mail reading means. An electronic mail summary transmitting means for extracting an outline of the electronic mail and transmitting the extracted electronic mail to the terminal device together with the identification information of the new electronic mail.
[0009]
In this communication system, the e-mail search means of the service processing server refers to the service relationship while referring to the first subscriber identifier stored in the storage means, the address of the mail server in the Internet network, and the second subscriber identifier. Each of at least one mail server to which at least one e-mail terminal owned by a subscriber subscribing to the service of the processing server is connected, the e-mail addressed to the subscriber, To regularly search for undelivered new email. Then, when there is such a new e-mail, the e-mail reading means of the service processing server reads the new e-mail, and the e-mail summary transmitting means of the service processing server extracts the outline of the new e-mail, The message is transmitted to the terminal device connected to the specific communication network together with the identification information of the mail.
[0010]
As a result, according to the communication system of the present invention, even if the service subscriber does not actively operate his / her own e-mail terminal device, the presence of a new electronic message addressed to himself / herself can be determined by the terminal device connected to the specific communication network. You can know automatically through. Furthermore, since the outline of the e-mail is displayed on the terminal device connected to the specific communication network, the urgency of the e-mail can be determined based on the outline, and the e-mail terminal device corresponding to the e-mail It is possible to determine when to read the e-mail. Therefore, according to the communication system of the present invention, it is possible to realize an efficient and highly e-mail environment.
[0011]
In the communication system according to the aspect of the invention, the electronic mail summary transmitting unit may transmit the outline of the new electronic mail and the identification information of the new electronic mail to the terminal device a plurality of times. In such a case, it is possible to improve the certainty of the notification of the outline of the new e-mail to the service subscriber, and it is particularly effective for the e-mail with high urgency.
[0012]
In the communication system of the present invention, the service processing server may have a mail server function.
[0013]
In the communication system of the present invention, the specific communication network can be a pager communication network. In such a case, the service subscriber always carries a light-weight pager terminal with very low power consumption, and uses a pager wave with a strong attainable power to send an outline of the new e-mail to the pager terminal using "no busy". Can be notified.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0015]
FIG. 1 is a block diagram showing a schematic configuration of a communication system 100 according to an embodiment of the present invention. As shown in FIG. 1, the communication system 100 includes (a) an Internet network 70, and (b) a communication network 40A to which a terminal device 10A and a terminal device 10B such as a personal computer that can transmit and receive electronic mail are connected. And (c) a mobile phone network 40B to which a mobile phone terminal 10C capable of transmitting and receiving electronic mail is connected. Further, the communication system 100 is connected to the (d) Internet network 70 and the communication network 40A, and is connected to the mail server 30A operated by the e-mail service provider contracted with the terminal device 10A. The mail server 30B, which is connected to the network 40A and is operated by an e-mail service provider contracted with the terminal device 10B, and (f) connected to the Internet network 70 and the mobile phone network 40B, and the mobile phone terminal 10C makes a contract. And a mail server 30C operated by an e-mail service provider. Further, the communication system 100 includes (g) a service processing server 60 connected to the Internet network 70 and the communication network 40A and controlling transmission to the pager terminal 50 via a base station (not shown).
[0016]
Here, the terminal device 10A, the terminal device 10B, the mobile phone terminal 10C, and the pager terminal 50 belong to the same individual. Note that other mail servers are also connected to the Internet network 70, other terminal devices are also connected to the communication network 40A, and other mobile phone terminals are also connected to the mobile phone network 40B. These illustrations are omitted in FIG. The service processing server 60 also controls transmission to other pager terminals, but these are not shown in FIG.
[0017]
As shown in FIG. 2, the service processing server 60 includes (i) a central processing unit (CPU) 61 that integrally controls the service processing server 60, and (b) a program executed by the CPU 61 and a program executed by the CPU 61. Storage device 62 in which information necessary for the service processing server 60 is stored, a service management table 91 used for managing services provided by the service processing server 60, and a message used for managing a message transmitted to the pager terminal 50. A non-volatile storage device 63 for storing a transmission message management table 92 to be transmitted, (d) a pager interface 64 for transmitting a message to the pager terminal 50, and (e) an Internet for connecting to the Internet 70. And an interface 65. The CPU 61, the memory 62, the non-volatile memory 63, the pager interface 64, and the Internet interface 65 are connected to an internal bus 67, respectively. Note that a magnetic disk device or the like can be used as the storage device 63.
[0018]
As shown in FIG. 3, the service management table 91 is a terminal device having a first subscriber identifier (IPID) of a service subscriber related to a mail summary distribution service provided by the service processing server 60 and an e-mail function. Correspondence with the attributes of the terminal devices 10A and 10B, the mobile phone terminal 10C, and the like is stored. The attributes of the terminal devices 10A and 10B and the mobile phone terminal 10C and the like stored in the service management table 91 in association with the IPID include (i) the mail servers 30A and the like of the terminal devices 10A and 10B and the mobile phone terminal 10C. A second subscriber identifier (MSID) relating to the e-mail service in 30B, 30C, etc., (ii) authentication for the terminal devices 10A, 10B, mobile phone terminal 10C, etc. to receive the e-mail service by the mail servers 30A, 30B, 30C, etc. First password (FPWD) and (iii) a server address (IAD) on the Internet 70 such as the mail servers 30A, 30B, 30C to which the terminal devices 10A, 10B, the mobile phone terminal 10C, etc. are connected. ing.
[0019]
The attributes of the terminal devices 10A and 10B, the mobile phone terminal 10C, and the like stored in the service management table 91 in association with the first subscriber identifier (IPID) include (iv) the terminal devices 10A and 10B and the mobile phone. An electronic mail address (EMAD) registered in each of the mail servers 30A, 30B, 30C and the like by the terminal 10C and the like, and (v) a second authentication authentication used when accessing the mail server function provided by the service processing server 60. The password (SPWD) and (vi) the pager number of the pager terminal to which the summary of the new e-mail arrived at the mail server 30A, 30B, 30C or the like according to the terminal device 10A, 10B, the mobile phone terminal 10C, or the like. (PGN).
[0020]
Here, the first subscriber identifier (IPID) is assigned to each subscriber when newly subscribing to the mail summary distribution service provided by the service processing server 60. FIG. 3 shows an example in which “PID001” is assigned and registered as a first subscriber identifier (IPID) to a subscriber who is an owner of the mail servers 30A, 30B, 30C and the like. .
[0021]
The above-mentioned second subscriber identifier (MSID), first password (FPWD), and server address (IAD) are set at the time of newly subscribing to the mail summary distribution service provided by the service processing server 60 for each terminal device. be registered. Here, as the server address (IAD), an IP address may be registered, or a combination of a domain address and a DNS (Domain Name System) may be used.
[0022]
In FIG. 3, “SID001” and “FW001” are registered as the second subscriber identifier (MSID) and the first password (FPWD) of the terminal device 10A, and the second subscriber identifier (MSID) of the terminal device 10B is registered. ) And “FW002” are registered as the first password (FPWD) and “SID003” and “FW003” as the second subscriber identifier (MSID) and first password (FPWD) of the mobile phone terminal 10C. Is registered. FIG. 3 shows an example in which “IAD001”, “IAD002”, and “IAD002” are registered as the mail server addresses of the mail servers 30A, 30B, and 30C.
[0023]
The above-mentioned e-mail address (EMAD) is registered when a new terminal is subscribed to the mail outline distribution service provided by the service processing server 60 for each terminal device. FIG. 3 shows an example in which “EAA001”, “EAA002”, and “EAB001” are registered as the e-mail addresses (EMAD) of the terminal devices 10A and 10B and the mobile phone terminal 10C.
[0024]
The second password (SPWD) is used for authentication when the service processing server 60 receives an e-mail service when the service processing server 60 also functions as an e-mail server. The second password (SPWD) is registered at the time of subscribing to both the mail outline distribution service provided by the service processing server 60 and the e-mail service provided by the service processing server 60 on a terminal unit basis. FIG. 3 shows an example in which parentheses indicate an example in which “SW001”, “SW002”, and “SW003” are registered as the second password (SPWD) of the terminal devices 10A and 10B and the mobile phone terminal 10C.
[0025]
The pager number (PGN) is registered for each subscriber when a new mail summary distribution service provided by the service processing server 60 is subscribed in principle. As the pager number (PGN), in this embodiment, the calling number to the pager terminal owned by the subscriber is registered as it is. FIG. 3 shows a pager number (PGN) for a subscriber who is the owner of the mail server 30A, 30B, 30C or the like (that is, a person having "PID001" as the first subscriber identifier (IPID)). An example is shown in which “PGN001”, which is the transmission number to the pager terminal 50, has been registered.
[0026]
Note that the pager number (PGN) is not always registered in a one-to-one correspondence with the first subscriber identifier (IPID). For example, when the subscriber to the mail summary distribution service provided by the service processing server 60 specified by one first subscriber identifier (IPID) has a plurality of pager terminals, the e-mail terminal device of the subscriber For each call (ie, for each second subscriber identifier (MSID)), a calling number to any one of the pager terminals can be registered as a pager number (PGN).
[0027]
The transmission message management table 92 is a table for managing the distribution of the mail summary, and has a structure as shown in FIG. That is, the timestamp (TMST), the pager number (PGN), the number of transmissions (TCNT), and the transmission buffer address (LADR) are registered in the transmission message management table 92 for each message to be distributed as a mail summary.
[0028]
Here, the time stamp (TMST) indicates the time at which the mail summary was stored in the transmission buffer. The pager number (PGN) indicates a transmission number to the pager terminal to which the mail summary is to be transmitted. The number of transmissions (TCNT) indicates the number of times the mail summary should be transmitted at the present time. The transmission buffer address (LADR) indicates the head address (pointer address) of the transmission buffer in which data of the mail summary to be transmitted is stored.
[0029]
In the communication system 100 of the present embodiment configured as described above, the service processing server 60 operates as follows to distribute an outline of an e-mail.
[0030]
First, in step S11 of FIG. 5, the second subscriber identifiers (MSIDs) associated with the first subscriber identifiers (IPIDs) in the service management table 91 of the service processing server 60 and the second subscriber identifiers (MSIDs) respectively , A first password (FPWD), an e-mail address (EMAD), and a pager number (PGN) corresponding to are read. The service processing server 60 has an e-mail service function, the mail server to which the e-mail terminal device is connected is the service processing server 60, and a second password (SPWD) is used instead of the first password (FPWD). When registered in the service management table 91, the second subscriber identifiers (MSIDs), the second passwords (SPWD) corresponding to the respective second subscriber identifiers (MSIDs), the e-mail addresses (EMAD) and The pager number (PGN) is read.
[0031]
Subsequently, in step S12, the service processing server 60 sends the e-mail of the first second subscriber identifier (MSID) (in this embodiment, “SID001”) among the read second subscriber identifiers (MSID). The terminal device (the terminal device 10A in the present embodiment) performs a connection process with a mail server (in the present embodiment, the mail server 30A) subscribed to the e-mail service. In the connection process, the service processing server 60 uses the second subscriber identifier (MSID) and the first password (FPWD) corresponding to the second subscriber identifier (MSID) to send the mail server 30A, 30B, A connection process is performed to 30C or the like via the Internet 70.
[0032]
The service processing server 60 has an e-mail service function, the mail server to which the e-mail terminal device is connected is the service processing server 60, and a second password (SPWD) is used instead of the first password (FPWD). When registered in the service management table 91, a second subscriber identifier (MSID), a second password (SPWD), and an e-mail address (EMAD) are used. Then, the service processing server 60 performs connection processing for its own e-mail service function without passing through the Internet 70.
[0033]
Next, in step S13, the service processing server 60 determines whether or not the connection processing has been authenticated by the mail server that has requested connection. If a negative determination is made in step S13, the process proceeds to step S14. In this step S14, connection failure processing is performed. As the connection failure process, the connection failure mode (connection destination, cause of failure, etc.) is stored in a log file (not shown) in the storage device 63. Thereafter, the process proceeds to step S18.
[0034]
On the other hand, if a positive determination is made in step S13, the process proceeds to step S15. In this step S15, the service processing server 60 searches for a new e-mail addressed to the e-mail address (EMAD) corresponding to the current second subscriber identifier (MSID) and determines whether there is a new e-mail. . Here, if there is no new e-mail and a negative determination is made, the process proceeds to step S18.
[0035]
On the other hand, if a positive determination is made in step S15, the process proceeds to step S16. In this step S16, the service processing server 60 reads out the new electronic mail via the Internet 70.
[0036]
Next, in step S17, the service processing server 60 creates an outline of the read new email. In creating such an outline, the service processing server 60 assigns a mail identifier to each read new e-mail, and extracts a mail reception address, a mail transmission address, a subject, a head part of the text, and a transmission date and time to extract the mail. Create an overview. Then, the service processing server 60 sequentially stores the mail summary together with the mail identifier in the transmission buffer described above. FIG. 6 shows an example of the transmission buffer storing the transmission data.
[0037]
In parallel with storing the mail summary in the transmission buffer, the service processing server 60 stores each pointer address in the transmission buffer storage address in the transmission buffer address (LADR) section of the transmission message management table 92. The service processing server 60 stores the time stored in the transmission buffer for each mail summary in the time stamp (TMST) of the transmission message management table 92, and has the same value as each mail reception address in the service management table 91. The pager number (PGN) corresponding to the electronic mail address (EMAD) is stored in the pager number (PGN) section of the transmission message management table 92. Further, the service processing server 60 stores a predetermined initial value (for example, “2”) in the number of transmissions (TCNT) section. Further, the service processing server 60 stores the time at which the mail summary was stored in the transmission buffer in the time stamp (TMST) section of the transmission message management table 92. Then, the process proceeds to step 18 in FIG.
[0038]
In step 18, it is determined whether a search for a new electronic mail has been made for all of the electronic mail terminals registered in the service management table 91. Here, if a negative determination is made, the process proceeds to step S12. Until an affirmative determination is made in step 18, a search for a search for new e-mails is sequentially performed on the e-mail terminals registered in the service management table 91, a mail outline is created for the new e-mails, and data to be transmitted to the transmission buffer is transmitted. Is stored, and the transmission message management table 92 is updated.
[0039]
The processing of steps S11 to S18 as described above is performed for each first cycle. On the other hand, independently of the processing in steps S11 to S18, the mail summary of the newly arrived mail is transmitted in a cycle shorter than the first cycle.
[0040]
In the transmission of the e-mail summary, as shown in FIG. 7, first, in step 21, the service processing server 60 sets the first time stamp (TMST) of the transmission message management table 92 (in this embodiment, the time stamp "TM001"). )), The pager number (PGN), the number of transmissions (TCNT), and the transmission buffer address (LADR) are read.
[0041]
Subsequently, in step S22, it is determined whether the read number of transmissions (TCNT) is “0”. Here, if a positive determination is made, the process proceeds to step S25.
[0042]
On the other hand, if a negative determination is made in step S22, the process proceeds to step S23. In this step S23, the transmission data is read from the transmission buffer stored at the previously read transmission buffer address (LADR). Then, the transmission data is transmitted to the pager terminal by using the pager number (PGN) read out earlier.
[0043]
Next, in step S24, the number of transmissions (TCNT) is updated by decrementing the number of transmissions (TCNT) by 1, and storing the result in the number of transmissions (TCNT) of the transmission message management table. Thereafter, the process proceeds to step S25.
[0044]
In step S25, it is determined whether or not transmission processing has been performed for all the time stamps (TMST) registered in the transmission message management table 92. Here, when a positive determination is made, the transmission process ends.
[0045]
On the other hand, if a negative determination is made in step S25, the process proceeds to step S26. In this step S26, the pager number (PGN), the number of transmissions (TCNT), and the transmission buffer address (LADR) corresponding to the next time stamp (TMST) in the transmission message management table 92 are read. Then, the process proceeds to step S22.
[0046]
Thereafter, the processes of steps S22 to S26 are repeated for each time stamp (TMST) until a positive determination is made in step S25. Then, the transmission processing for all the time stamps (TMST) in the transmission message management table 92 ends, and if a positive determination is made in step S25, the transmission processing to the pager terminal ends.
[0047]
As described above, in the present embodiment, the service processing server 60 stores the first subscriber identifier (PID) stored in the storage device 63 and the address (IAD) of each of the mail servers 30A, 30B, and 30C in the Internet network 70. ) And the second subscriber identifier (SID), the electronic mail terminal devices 10A, 10B, 10C, etc. owned by the subscribers subscribing to the service of the service processing server 60 are connected. Each of the mail servers 30A, 30B, 30C, etc., periodically searches for new e-mail addressed to the subscriber and not delivered to the subscriber. When there is such a new e-mail, the service processing server 60 reads the new e-mail, extracts an outline of the new e-mail, and, together with the identification information of the new e-mail, a pager terminal connected to the pager communication network. Send to 60 etc. As a result, the service subscriber can automatically know the presence of a new electronic message addressed to the user via the pager terminal connected to the pager communication network without actively operating his / her own electronic mail terminal device. . In addition, since the outline of the e-mail is displayed on the pager terminal, the urgency of the e-mail can be determined based on the outline, and the e-mail terminal device corresponding to the e-mail reads the e-mail. We can judge when it should be. Therefore, an efficient and highly e-mail environment can be realized.
[0048]
In the present embodiment, the service processing server 60 transmits the outline of the new e-mail and the identification information of the new e-mail a plurality of times to the pager terminal device. Can be improved.
[0049]
Further, in this embodiment, since the terminal device of the transmission destination of the mail summary is a pager, the service subscriber always carries a light-weight pager terminal with very low power consumption, so that the pager wave having a strong reach can be obtained. , The outline of the new e-mail can be reliably notified to the pager terminal with "no busy".
[0050]
In the above-described embodiment, the service processing server 60 temporarily stores the outline of the new e-mail and the identification information of the new e-mail and transmits the outline to the pager terminal device a plurality of times. Each time the mail summary is sent, the mail summary may be sent only once. In such a case, the transmission message management table 92 in the above embodiment can be omitted.
[0051]
In the above-described embodiment, the destination terminal device to which the service processing server 60 transmits the mail summary is a pager terminal that communicates via a pager communication network, but a terminal device that communicates via another communication network. It goes without saying that
[0052]
In the above embodiment, the service processing server 60 is a single server, but may be configured as a plurality of servers divided for each function.
[0053]
Further, the service management table 91 and the transmission message management table 92 may have another configuration as long as the configuration satisfies the same functions as those of the above embodiment.
[0054]
Further, the configuration of the e-mail summary is not limited to the configuration of the above-described embodiment, and another configuration may be employed as long as the configuration satisfies the same functions as those of the above-described embodiment.
[0055]
Further, the transmission buffer of the mail summary may be provided in the storage device 62 or may be provided in the storage device 62.
[0056]
【The invention's effect】
As described above in detail, according to the communication system of the present invention, an efficient and highly responsive e-mail environment can be realized.
[Brief description of the drawings]
FIG. 1 is a block diagram schematically showing a configuration of a communication system according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a configuration of a service processing server 60 of FIG. 1;
FIG. 3 is a diagram for explaining a service management table in FIG. 2;
FIG. 4 is a diagram for explaining a transmission message management table in FIG. 2;
FIG. 5 is a flowchart illustrating a process of creating a mail summary.
FIG. 6 is a diagram illustrating an example of an outline of a mail in a transmission buffer.
FIG. 7 is a flowchart illustrating a transmission process of a mail summary.
[Explanation of symbols]
10A, 10B: terminal device, 10C: mobile phone terminal, 30A, 30B, 30C: mail server, 50: pager terminal, 60: service processing server, 63: storage device (storage means), 70: Internet network, 91: service Management table, 92: Transmission message management table.

Claims (4)

At least one mail server connected to the Internet network and a service processing server connected to the Internet network and the specific communication network and controlling data distribution to a terminal device owned by a service subscriber and connected to the specific communication network. A communication system comprising:
The service processing server,
A first subscriber identifier of the service subscriber relating to the service provided by the service processing server, an address of the at least one mail server in the Internet network, and the service relating to the service provided by the at least one mail server, respectively. Storage means for storing the correspondence between the subscriber and the second subscriber identifier;
E-mail search means for periodically searching for new e-mail addressed to the service subscriber in the at least one mail server;
E-mail reading means for reading new e-mail addressed to the service subscriber by the e-mail searching means;
E-mail summary transmitting means for extracting an outline of the electronic new mail read by the electronic mail reading means and transmitting the extracted outline to the terminal device together with the identification information of the electronic new mail. Communications system. 2. The communication system according to claim 1, wherein the electronic mail summary transmitting unit transmits the outline of the new electronic mail and identification information of the new electronic mail to the terminal device a plurality of times. 3. The communication system according to claim 1, wherein the service processing server has a mail server function. The communication system according to any one of claims 1 to 3, wherein the specific communication network is a pager communication network.

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