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Is there any reason that Civi would set unsubscribe and X-CiviMail-Bounce properly, but set return-path to reply-to instead? See the (modified) headers below.

We changed mail servers not too long ago, and since then our bounces are suddenly going to our reply-to address rather than our bounce address. Host says this is being done by the client (ie civi), rather than the mailserver, but the timing is odd since it worked fine prior to change in mail server.

I don't think we made other configuration changes that would account for this.

Any help in debugging this would be much appreciated.

Civi 4.2.6 Drupal 7.16 (yes we are planning to upgrade)

Headers

Delivered-To: [someaddress@somewhere.com]
Received: by [mailserverip] with SMTP id xxxx;
        Thu, 18 Jun 2015 06:29:50 -0700 (PDT)
X-Received: by [receiving server] with SMTP id yyyyy;
        Thu, 18 Jun 2015 06:29:50 -0700 (PDT)
**Return-Path: <info@ourorganization.org>**
Received: from [ourmailserver] ([our mail server ip])
        by [receivingmailserver] with ESMTPS id [receiving mail servicer id]
        for[someaddress@somewhere.com]
        (version=TLSv1.2 cipher=xxxxx bits=128/128);
        Thu, 18 Jun 2015 06:29:50 -0700 (PDT)
Received-SPF: pass (xxxxx) client-ip=xx.xx.xx.xxx;
Authentication-Results: xxx;
       spf=pass (xxxxxxxxxxxx) smtp.mail=xxx
Received: from [xx.xxx.xx.xxx] (helo=[ourwebserver])
    by [ourmailserver] with esmtpa (Exim 4.72)
    (envelope-from <info@ourorganization.org>)
    id 1Z5Zt7-0003cp-JQ
    for info@ourorganization.org; Thu, 18 Jun 2015 13:29:49 +0000
Message-Id: <E1Z5Zt7-0003cp-JQ@mailserver>
MIME-Version: 1.0
Content-Type: multipart/alternative;
 boundary="=_abd6aac4c1ae6db13534624f06413403"
Reply-To: "US" <info@ourorganization.org>
From: "NY-BEST" <info@ourorganization.org>
Subject: Next Week! Conference
**List-Unsubscribe: <mailto:ourbounce+u.2505.397854.8d11b042631c3439@ourserver.com>**
To: Admin User <info@ny-best.org>
Precedence: bulk
**X-CiviMail-Bounce: ourbounce+u.2505.397854.8d11b042631c3439@ourserver.com**
Date: Thu, 18 Jun 2015 09:30:08 -0400
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1

Turns out it was a problem with exim, which was apparently changing the headers civi was sending.

After working with our host they were able to adjust exim.conf to make it work. Here's what they did which may or may not be completely correct, and may or may not solve others' problems, but it' a start

At the very top of exim.conf add

local_from_check=false untrusted_set_sender = true local_sender_retain = true

Here's the reference: http://www.exim.org/exim-html-current/doc/html/spec_html/ch-main_configuration.html

"If local_from_check is set false, the From: header check is disabled, and no Sender: header is ever added. If, in addition, you want to retain Sender: header lines supplied by untrusted users, you must also set local_sender_retain to be true.

These options affect only the header lines in the message. The envelope sender is still forced to be the login id at the qualify domain unless untrusted_set_sender permits the user to supply an envelope sender."

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0

The header looks ok, it's probably your mail server that rewrites it. Can you try to switch to mail() instead of smtp or the other way around into your mail config on civicrm?

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  • Thanks. I will try that, but just to confirm ... in my old headers (where the mail bounced properly) it looked like Return-Path: <ourbounce+u.2505.397854.8d11b042631c3439@ourserver.com> Is it supposed to be like that? Or like info@ourorganization.com? – Anne Savage Jun 19 '15 at 16:09
  • I think I've tracked this down to exim. This ( exim.org/exim-html-current/doc/html/spec_html/…) suggests that we could put no_rewrite in the configuration. This (exim.org/exim-html-3.20/doc/html/spec_48.html#SEC822) describes how to set up a rule, but I'd have to figure out how to implement. Finally, this (stackoverflow.com/questions/5303541/…) talks about using return_path_remove = false but there are different opinions about this. Any help would be appreciated – Anne Savage Jun 25 '15 at 13:41
  • PS - I couldn't try switching to mail() because that errored on my server. Our mail server is on a different box than the webserver. Could that be why? – Anne Savage Jun 25 '15 at 14:05

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