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Internet Mail transfer (SMTP) with callback method

IP.com Disclosure Number: IPCOM000127580D
Original Publication Date: 2005-Sep-02
Included in the Prior Art Database: 2005-Sep-02
Document File: 3 page(s) / 13K

Publishing Venue

IBM

Abstract

Disclosed is a system for internet mail transfer protocol with callback method. Internet mail system doesn't have the way of checking whether mail server of a sender is correct or not. The callback method can find the right mail server.

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Internet Mail transfer (SMTP) with callback method

Disclosed is a system for internet mail transfer protocol with callback method. E-mail system doesn't have any functions to get information about whether mail server of a sender is correct or not. So, there are a lot of junk e-mail such as spam in the internet. The server receiving the email can check whether the mail server of the sender is correct or not by using callback method. The callback method is the method of letting the receiver get email from the sender in order to prevent the receiver from getting junk email. The process of the method is explained below.

First of all, the right sender's mail server needs to be registered in DNS server. Then, the sender's server connects to receiver's server. The sender's server notifies email address of a sender and receiver. So far, this process is same as the process of SMTP, but from here, the process is different from SMTP. After the receiver's server gives a request ID to the sender's server, the receiver's server disconnects to the sender's server.

Based on information of DNS server, the receiver's server gets IP address of the right sender's server by using the sender's email address notified from the sender's server. Receiver's server connects to the right sender's server with the IP address. The receiver's server sends request ID to the sender's server. Based on request ID, the sender's server sends mail message to the receiver's server. (Fig.1)

If the send...