550 5.7.1 Sender ID (PRA) Not Permitted

Various senders are getting bounce backs from our Exchange 2007 server with the following error:

550 5.7.1 Sender ID (PRA) Not Permitted

This just started happening and is only affecting a handful of users. Trying to determine what is unique with the users have failed. Not sure what else could be causing the PRA error.

Here is the NDR:

To: Sender
Subject: failure notice

This is the mail delivery agent at messagelabs.com.
I was not able to deliver your message to the following addresses.

<Receiver@emailaddress.com>: failed after I sent the message.
Remote host said: 550 5.7.1 Sender ID (PRA) Not Permitted

--- Below this line is a copy of the message.

Return-Path: <Sender@Senderaddress.com>
X-VirusChecked: Checked
X-Env-Sender: Sender@Senderaddress.com
X-Msg-Ref: server-11.tower-191.messagelabs.com!1271339174!29706798!1
X-StarScan-Version: 6.2.4; banners=-,-,emailaddress.com
X-Originating-IP: []
X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor:
Received: (qmail 21327 invoked from network); 15 Apr 2010 13:46:14 -0000
Received: from sf2.jpmchase.com (HELO sf2.jpmchase.com) (
 by server-11.tower-191.messagelabs.com with DHE-RSA-AES256-SHA encrypted SMTP; 15 Apr 2010 13:46:14 -0000
Received: from sg3.svr.us.jpmchase.net (sg3.svr.us.jpmchase.net [])
       by sf2.jpmchase.com (Switch-3.3.3mp/Switch-3.3.3mp) with ESMTP id o3FDkVs1021446
       (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL)
       for <Receiver@emailaddress.com>; Thu, 15 Apr 2010 09:46:31 -0400
X-DKIM: Sendmail DKIM Filter v2.5.6 sf2.jpmchase.com o3FDkVs1021446
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=jpmchase.com;
       s=smtpout; t=1271339191; bh=uGVsLcB8knkp7JtTQDco5EFw7iroNiZ4fSXWdyI
       W4u8=; h=From:To:Date:Subject:Message-ID:References:In-Reply-To:
        MIME-Version:Content-Type; b=IhTpa+8QM0GMaSyO2dJ8XkbMIVQ52rwNDmTpQ
Received: from svr.us.jpmchase.net (imh2.svr.us.jpmchase.net [])
       by sg3.svr.us.jpmchase.net (Switch-3.3.3mp/Switch-3.3.3mp) with ESMTP id o3FDkVnb017008
       for <Receiver@emailaddress.com>; Thu, 15 Apr 2010 09:46:31 -0400
Received: from ([])
       by imh2.svr.us.jpmchase.net with ESMTP  id 5503230.22046127;
       Thu, 15 Apr 2010 09:46:26 -0400
Received: from HBCR001.exchad.jpmchase.net ( by
 HUBCR103.exchad.jpmchase.net ( with Microsoft SMTP Server
 (TLS) id 8.1.393.1; Thu, 15 Apr 2010 09:46:25 -0400
Received: from EMARC107VS01.exchad.jpmchase.net ([]) by
 HBCR001.exchad.jpmchase.net ([]) with mapi; Thu, 15 Apr 2010
 09:46:24 -0400

Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

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.

Alan HardistyCo-OwnerCommented:
You have Sender ID checking enabled (anti-spam feature) and the senders are not configured properly and thus your server is rejecting them.
Please have a read of my article and check out their domain names, paying particular attention to the SPF records for the domain:
The problem is at their end, not yours.  Their configuration is bad and you are rejecting the mail due to their poor configuration.

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

From novice to tech pro — start learning today.