Summary: mis-parse of Received header token "([unix socket])"
AssignedTo: dev@spam... ReportedBy: stepheng+apache@gild...
SpamAssassin can't parse the following header, because it wants an IP
address inside the ([...]), and "unix socket" confuses it. The
confusion causes the received trust chain to be broken.
Received: from hathor.gsd.harvard.edu ([unix socket])
by hathor (Cyrus v2.3.7) with LMTPA;
Fri, 15 May 2009 20:32:11 -0400
Yes, the literal words "unix socket" appear in the header where you
would expect an IP address. Replacing that text with "127.0.0.1"