On Fri, 24 Sep 2004 11:36:27 -0400 (EDT) "Dan Mahoney, System Admin" <[EMAIL PROTECTED]> wrote:
[snip] > The person running 1.2.3.4 has NO CLUE what they are doing. 1.2.3.4 > should RDNS to whatever the "hostname" value of that machine is. This > should be the same as the HELO the machine uses when talking out to the > outside world. No. HELO is only required to be a FQDN and to resolve to an A record. It does not have to match rDNS nor does it have to match the hostname of the actual server sending out the mail. HELO may be a dotted-quad per the RFCs but only incompetents set their mail systems to do that and that mail is often safely ignored. This is better addressed on SPAM-L. -- Bob Apthorpe
