[Mailman-Users] spam, AOL and server names
dennis at e-aa.org
Tue Mar 20 13:59:41 CET 2007
First time posting, I've been reading with interest - very friendly
helpful mailing list here! Hope I can help some in the future.
We have about a dozen mailing lists running on majordomo, and are
getting ready to migrate to mailman. We're excited!
A persistent problem we've had is a significant amount of our users are
AOL - and many are clueless. We're pretty ruthless about deleting AOL
users when we get a report that someone is using their spam button - but
even so a lot (most) of our mail to AOL gets rejected. We've decided
that part of the problem is we're using an older version of majordomo.
I *think* another part of our problem can be found in this bit of our
dns report from dnsstuff.com:
OK: All of your mailservers have their host name in the greeting:
220 dedicated.bixbycreek.com ESMTP Sendmail 8.12.10/8.12.10; Tue, 20
Mar 2007 05:44:34 -0800
In other words our mailing domain name is different than our mail server
As part of our migration we are moving from a shared server to our own
dedicated server. The new server is
eaachat.org and the same section of the dns report for the new domain on
the new server reads:
WARNING: One or more of your mailservers is claiming to be a host other
than what it really is (the SMTP greeting should be a 3-digit code,
followed by a space or a dash, then the host name). If your mailserver
sends out E-mail using this domain in its EHLO or HELO, your E-mail
might get blocked by anti-spam software. This is also a technical
violation of RFC821 4.3 (and RFC2821 4.3.1). Note that the hostname
given in the SMTP greeting should have an A record pointing back to the
same server. Note that this one test may use a cached DNS record.
mail.eaachat.org claims to be non-existent host dedicated.eaachat.org:
220 dedicated.eaachat.org ESMTP
I'm assuming that both of the above problems are part of our AOL
problems. Am I correct? And if so - does anyone have a tip or two about
what to do to resolve it?
We're creating an SPF record to see if that helps - we really want at
least some of our mail to get through to AOL. We plan to make the switch
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