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Sender ID

   Also found in: Wikipedia 0.02 sec.

Sender ID

An e-mail authentication system from Microsoft that is based on Sender Policy Framework (SPF) records in the DNS system. Sender ID uses Microsoft's proprietary Purported Responsible Address (PRA) method for checking the headers within the message body. Sender ID also supports SPF Classic, which looks only at the envelope headers outside the message body; however, Sender ID generally implies the PRA method. See SPF and e-mail authentication.



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AOL cited ``tepid support'' for Microsoft's so-called Sender ID technology, which seeks to cut down on junk e-mail by making it difficult for spammers to forge e-mail headers and addresses.
Yahoo said it would probably begin using both Sender ID and Domain Keys, a different approach, by the end of the year.
When an email arrives, the Truemark service uses industry standard technologies such as Domain Keys and Sender ID to verify the authenticity of the message.
 
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