Verifies that a sender's address matches the address that submitted it
'libspf2' implements the Sender Policy Framework, which verifies that the Sender address of an email message matches (according to some policy) the client IP address that submitted it. This is unlike the present SMTP standard for email, which allows anyone to forge anyone else's email address. SPF libspf2 is a complete and robust implementation of SPF which provides support for many MTAs. It is designed to be secure, correct, portable, flexible, and fast (in that order).
14 July 2004
14 July 2004
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