Exchange 2010 alters return-path header when using the redirect function within OWA RRS feed

  • Question

  • Hi,

    When receiving redirected email (this is setup in OWA Exchange 2010), the return-path is changed to the local user's address.  How can I preserve the original sender's address in the return-path that is forwarded to my server?

    See the example below:

    "From" is the original sender.

    "Return-Path" is now marked by the address that redirected it to me.

    These should match.

    The receiving server has trouble scanning for SPAM and performing other functions due to Exchange's alterations.  I would expect this behavior in a forwarded message.  A redirect should not behave this way.

    Return-Path: <dave.gattis@domain-a.com>
    X-Original-To: dave.gattis@domain-b.com
    Delivered-To: dave.gattis@domain-b.com
    Received: from spamcop.main.ch (spamcop.main.ch [])
    by domain-b.com (Postfix) with ESMTP id 4C33B1C101DA
    for <dave.gattis@domain-b.com>; Tue, 26 Mar 2013 15:26:20 -0400 (EDT)
    Received: from ex.domain-a.com (ex.domain-a.com []) by
    spamcop.main.ch with ESMTP id XG6BahjbXx2aUvvc for
    <dave.gattis@domain-b.com>; Tue, 26 Mar 2013 20:32:43 +0100 (CET)
    Received: from EX2.domain-a.com ([fe80::acd3:8e53:bcb6:7a4%11]) by
      ex2.domain-a.com ([fe80::acd3:8e53:bcb6:7a4%11]) with Microsoft SMTP
    Server id
      14.01.0355.002; Tue, 26 Mar 2013 20:31:01 +0100
    From: Dave Gattis <friends@sender.com>
    To: SUMACO Gattis Dave <dave.gattis@domain-a.com>
    Subject: test 888
    Date: Tue, 26 Mar 2013 19:32:39 +0000
    Message-ID: <4078d19079d546799c467c20f81cc03f@EX2.domain-a.com>
    Resent-From: <dave.gattis@domain-a.com>
    Content-Type: text/plain; charset="iso-8859-1"
    Content-ID: <E396917040F03D4B8D7589B0B4BCC0FF@domain-a.com>
    Content-Transfer-Encoding: quoted-printable
    MIME-Version: 1.0
    Resent-Message-Id: <20130326193243.F1342D3428@spamcop.main.ch>
    Resent-Date: Tue, 26 Mar 2013 20:32:43 +0100 (CET)
    X-WatchGuard-AntiVirus: part scanned. clean action=allow
    X-SuhnerUSA-MailScanner-Information: Please contact the ISP for more
    X-SuhnerUSA-MailScanner-ID: 4C33B1C101DA.A6F4C
    X-SuhnerUSA-MailScanner: Found to be clean
    X-SuhnerUSA-MailScanner-From: dave.gattis@domain-a.com
    X-Spam-Status: No

    Any help would be greatly appreciated.


    Tuesday, March 26, 2013 9:06 PM


  • Hi Dave ,

    The Return-Path header is used to indicate to the recipient (or receiving MTA) where non-delivery receipts are to be sent.

    It seems that it can’t be changed. But if the email you received is from internal, maybe you can grant “send as” permission to the user instead of forwarding yourself directly.

    What Address Rewriting Agents Don’t Rewrite:


    Wendy Liu
    TechNet Community Support

    • Proposed as answer by wendy_liu Wednesday, April 3, 2013 2:46 AM
    • Marked as answer by wendy_liu Thursday, April 4, 2013 5:46 AM
    Thursday, March 28, 2013 8:38 AM