spfmilter

0.97 BSD License    
  UNRATED

  653 downloads

spfmilter provides a Sender Policy Framework (SPF) milter for Sendmail.

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spfmilter provides a Sender Policy Framework (SPF) milter for Sendmail.

spfmilter is a milter (sendmail mail filter) which implements the Sender Policy Framework (SPF). SPF is a strategy for preventing junk mail. The SMTP standard for email allows anyone to forge anyone else's email address.

SPF verifies that the Sender address of an email message matches (according to some policy) the client IP address that submitted it.

The idea of SPF is to prevent email forgery. Each participating site sets up a little definition of which hosts are allowed to send mail claiming to be from that site. When another site receives mail, it checks the permitted-senders definition for the originating site. If the check fails, the mail is rejected.

Setting up the permitted-senders definition is very easy, you go to the SPF Wizard and fill out a little form, then put the resulting string into your DNS records. This milter implements the second half of SPF, checking the mail you receive against other sites' SPF records.

What's New in This Release:

Some improvements to the redhat rcscripts. (Paul Howarth)
Deal with the unknown-family connections which occasionally show up on some OSs, such as Solaris. (Joel Lord)
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Last updated on March 24th, 2007

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