Electronic mail sending and receiving system
First Claim
1. It is the system which is able to encrypt an electronic mail including its header when sending it without installing individually an encryption system in the sender'"'"'s terminal and to decrypt the electronic mail including its header when receiving it without installing individually a decryption system in the receiver'"'"'s terminal, composing sender clients, the sender'"'"'s mail server, receiver clients, the receiver'"'"'s mail server, and the networking between the sender clients and the receiver clients, wherein the sender'"'"'s mail server includes:
- an SMTP server for receiving a plaintext electronic mail sent from the sender'"'"'s terminal;
destination check means in the electronic mail;
as a result of them, this system call an SMTP/S protocol for encrypting and sending an electronic mail including its header when the destination of the electronic mail supports the SMTP/S protocol, and wherein the receiver'"'"'s mail server includes;
an SMTP server for receiving the electronic mail sent from the sender server and decryption means to decrypt the received electronic mail.
1 Assignment
0 Petitions
Accused Products
Abstract
There is provided an electronic mail sending and receiving system capable of encrypting an electronic mail including its header when sending it without installing an encryption system in a sender client and decrypting the electronic including its header mail when received without installing an encryption system in a receiver client. A sender'"'"'s mail server includes an SMTP server for receiving a plaintext electronic mail sent from a sender client, destination check means for checking an electronic mail destination, and electronic mail encrypting and sending means for encrypting the electronic mail by using an SMTP/S protocol if the destination check result shows that the electronic mail delivery destination supports the SMTP/S protocol when sending the mail. A receiver'"'"'s mail server includes an SMTP server for receiving an electronic mail and mail decryption/reception means for decoding the electronic mail received.
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Citations
10 Claims
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1. It is the system which is able to encrypt an electronic mail including its header when sending it without installing individually an encryption system in the sender'"'"'s terminal and to decrypt the electronic mail including its header when receiving it without installing individually a decryption system in the receiver'"'"'s terminal, composing sender clients, the sender'"'"'s mail server, receiver clients, the receiver'"'"'s mail server, and the networking between the sender clients and the receiver clients, wherein the sender'"'"'s mail server includes:
- an SMTP server for receiving a plaintext electronic mail sent from the sender'"'"'s terminal;
destination check means in the electronic mail;
as a result of them, this system call an SMTP/S protocol for encrypting and sending an electronic mail including its header when the destination of the electronic mail supports the SMTP/S protocol, and wherein the receiver'"'"'s mail server includes;
an SMTP server for receiving the electronic mail sent from the sender server and decryption means to decrypt the received electronic mail. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
- an SMTP server for receiving a plaintext electronic mail sent from the sender'"'"'s terminal;
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2. It is the system which is able to encrypt an electronic mail including its header when sending it without installing individually an encryption system in the sender'"'"'s terminal composing sender clients and the sender'"'"'s mail server, the system further comprising:
- destination check means in the electronic mail;
as a result of them, this system call an SMTP/S protocol for encrypting and sending an electronic mail including its header when the destination of the electronic mail supports the SMTP/S protocol.
- destination check means in the electronic mail;
Specification