Received from  www.mydomain.com[] change to www.mydomain.com[my rdns address]

Posted on 2008-11-07
Medium Priority
Last Modified: 2013-12-18
In all the emails my site is sending in its header a address as its first hop! This is a problem because some spam blockers will block on this. denying anything that orginates from a address. Any ideas on how to change this to my dns address?

Return-Path: <service@mydomain.com>

Received: from www.mydomain.com ([216.x.x.x])
      by uni02mr.unity.ncsu.edu (8.13.7/8.13.8/Nv5.2008.0610.1) with ESMTP id mA7J8J0D014820
      for <me@someotherdomain.edu>; Fri, 7 Nov 2008 14:08:19 -0500 (EST)
Received: from www.mydomain.com (www.mydomain.com [])
      by www.mydomain.com (8.13.1/8.13.1) with ESMTP id mA7J7YVi027954
      for <me@someotherdomain.edu>; Fri, 7 Nov 2008 14:07:34 -0500
Date: Fri, 7 Nov 2008 14:07:34 -0500
Message-ID: <27312399.1226084854114.JavaMail.root@www.mydomain.com>

host file:
# Do not remove the following line, or various programs
# that require network functionality will fail.               mydomain.com

Question by:mhp2007
  • 3
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LVL 86

Expert Comment

ID: 22908007
>>Received: from www.mydomain.com ([216.x.x.x])

Is what it's saying isn't it? That's a public address

Author Comment

ID: 22908055
Yes, but that's not the message for the original hop, I'd like that one to use the public address.
LVL 86

Expert Comment

ID: 22908414
I'm guessing that you're using JavaMail to send on the first hop. Is that the case?
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Author Comment

ID: 22908432
Yes, you guess right : <27312399.1226084854114.JavaMail.root@www.mydomain.com>... can i set a from IP address in java?
LVL 26

Accepted Solution

jar3817 earned 1000 total points
ID: 22914188
The first hop is the localhost address because the first hop is from a local process (a webserver) to the local mail server. Don't worry about it, this is common and not the reason your mail is getting rejected.
LVL 86

Assisted Solution

CEHJ earned 1000 total points
ID: 22915532
The important thing, as far as anti-spam measures are concerned is that the domain/address can be checked at each stage. Obviously, can't be. Try setting the property


to your public address

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