JP Vossen on 26 Sep 2008 12:57:40 -0700

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Re: [PLUG] Odd email problem

> Date: Fri, 26 Sep 2008 10:05:26 -0400
> From: "Toby DiPasquale" <>

> It sounds like that thing trying to be helpful is postfix itself. What
> other pieces are there in the chain? (I'm assuming that the mail is
> going direct to MX from his ISP's outbound MTA).

It's a stock Ubuntu Hardy server with Postfix, greylisting and mailman. 
  No AV or other spam measures (as yet).

His mail is going via upstream ISP smarthost 
(, via GoDaddy hosting, I think), 
using smtpauth from the client.

BUT, 'lists.' is a CNAME to 'mail.' so it may be that something, 
somewhere is barfing on that and "helpfully" re-resolving the host.  DNS 
is out of my control and is hosted on Windows, unfortunately...

JP Vossen, CISSP            |:::======|        jp{at}jpsdomain{dot}org
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