> -----Original Message----- > From: Murray S. Kucherawy > Sent: Monday, February 28, 2011 6:08 PM > To: exim users > Subject: RE: [exim] Rejecting messages with no "To:" or "Cc:" field in the > headers > > RFC2821 (2001) does a better job, but still not what you're looking > for. It says the HELO parameter has to be the fully-qualified domain > name of the sending machine. But it fails to define that as well; in > particular, just because I don't have reverse DNS set up for my mail > server doesn't mean its fully-qualified domain name isn't "foo.bar".
In fact, Section 4.1.4 of RFC2821 and of RFC5321 specifically disallow filtering based on a reverse DNS mismatch of the HELO/EHLO parameter. -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
