Mailing List Message #97582
From: <>
Subject: "we refuse to relay" and mailman
Date: Sat, 21 Mar 2009 20:58:17 -0400
To: <>
X-Mailer: CommuniGate Pro WebUser v5.2.10
Hello all,

I have a problem with my email list messages being rejected by remote hosts.
20:37:18.994 1 DEQUEUER [13608339] SMTP( failed: we refuse to relay

Initially, I thought this might be an SPF issue and updated our SPF record in the DNS.  No change.

Perhaps it was the way the headers appeared.
"Received: from [] (HELO localhost.localdomain)
  by (CommuniGate Pro SMTP 5.2.10)
  with ESMTP id 13607978; Sat, 21 Mar 2009 17:51:36 -0400"

Editing the hosts file to put the server IP and name in the first line did not change the behavior.
"Received: from [] (HELO
  by (CommuniGate Pro SMTP 5.2.10)
  with ESMTP id 13608028; Sat, 21 Mar 2009 18:12:55 -0400"

I changed Mailman to force it to use the host instead of the loopback. Still rejected.
Finally I reconfigured Mailman to use SMTP_AUTH and port 587 to send out mail.  Still it appears to remote hosts as if they are relayed messages.

I am stumped here.  Users do not have this problem sending messages directly to the users in the list.

The last failed message headers:
Return-Path: <>
Received: from [] (account mailmansend HELO
  by (CommuniGate Pro SMTP 5.2.10)
  with ESMTPA id 13608338; Sat, 21 Mar 2009 20:37:18 -0400
Received: from [] (account
by (CommuniGate Pro WEBUSER 5.2.10)
with HTTP id 13608337 for;
Sat, 21 Mar 2009 20:37:07 -0400
From: <>
X-Mailer: CommuniGate Pro WebUser v5.2.10
Date: Sat, 21 Mar 2009 20:37:07 -0400
Message-ID: <>

The IP's are Client IP ranged.

What is making this appear to be a relayed message to the remote host?

Thanks for your help
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