550 #5.1.0 Address rejected

I am getting some bounces from an application that is not hosted at my site.  An email is generated at the login phase.  We are attempting to relay it from the hosting service and I fear that this may be a problem for some spam filters.  I have sent test messages directly from myself and they are being delivered.  

Is there a way to safely relay an email message such as this and not be caught in the spam filters?


Listed below is part of the message received.


Received: from enterprise.filter (localhost.localdomain [127.0.0.1])      by
 oc-smtp1.mxpath.net (MXPath Final Delivery) with SMTP id AE3DC33698      for
 <mhmg.cjarmon@med.nyu.edu>; Thu,  1 Apr 2010 15:16:18 +0000 (GMT)
Received: from AAAHC-MAIL-ET.AAAHC.org (unknown [216.159.232.116])
      (using TLSv1 with cipher AES128-SHA (128/128 bits))
      (No client certificate requested)
      by oc-smtp1.mxpath.net (MXPath Final Delivery) with ESMTP id 41E612BC21
      for <mhmg.cjarmon@med.nyu.edu>; Thu,  1 Apr 2010 15:16:18 +0000 (GMT)
Received: from DEDR62 (67.199.120.63) by BreakTechRelay.aaahc.org (10.0.0.12)
 with Microsoft SMTP Server id 8.2.176.0; Thu, 1 Apr 2010 10:15:35 -0500
jplack07Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

paarunCommented:
I think the message is being rejected as it does not come from a registered domain. Supposed your registered mail domain is xyz.com and you are trying to send from abc@app.xyz.com, then problem arises when the recipient's email filter checks for reverse dns (meaning app.xyz.com is not registered) and it rejects it as it thinks it is spam. You need to configure the application to send from abc@xyz.com and it should go fine.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
AntiSpam

From novice to tech pro — start learning today.