On 8/4/2017 12:51 PM, Mark Sapiro wrote:
> I'm aware of issues with Microsoft services adding 'spoofing' warnings
> to messages where the From: address and the To: address are the same.
> Is this what you were referring to by "Setting it to the list name
> interacts badly with outloook.com and hotmail.com replies." in your
> OP. If not that, then what?
I haven't investigated deeply, but with an original message like:
Return-Path: <list1-boun...@listdomain.org>
Return-path: <list1-boun...@listdomain.org>
Date: Wed, 2 Aug 2017 19:44:35 +0000 (UTC)
To: list2 <li...@listdomain.org>,
list1 <li...@listdomain.org>
Subject: [list1] ...
X-BeenThere: li...@listdomain.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: "list1" <list1.listdomain.org>
List-Unsubscribe:
<http://listdomain.org/mailman/options/list1_listdomain.org>,
<mailto:list1-requ...@listdomain.org?subject=unsubscribe>
List-Post: <mailto:li...@listdomain.org>
List-Help: <mailto:list1-requ...@listdomain.org?subject=help>
List-Subscribe:
<http://listdomain.org/mailman/listinfo/list1_listdomain.org>,
<mailto:list1-requ...@listdomain.org?subject=subscribe>
From: Jane User via list1 <li...@listdomain.org>
Reply-To: Jane User <j...@example.net>
Errors-To: list1-boun...@listdomain.org
Sender: "list1" <list1-boun...@listdomain.org>
Two of my users (on outlook.com and hotmail.com) ended up with
reply-to-all results that were addressed to Joe User and list2, but not
to list1 at all. (Note that this reply came to me via list2.)
Return-Path: <list2-boun...@listdomain.org>
Return-path: <list2-boun...@listdomain.org>
To: Troop 92 list2 <li...@listdomain.org>, Jane User
<j...@example.com>
Date: Wed, 2 Aug 2017 20:27:29 +0000
Subject: Re: [list2] [list1] ...
X-BeenThere: li...@listdomain.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: list2 <list2.listdomain.org>
List-Unsubscribe:
<http://listdomain.org/mailman/options/list2_listdomain.org>,
<mailto:list2-requ...@listdomain.org?subject=unsubscribe>
List-Post: <mailto:li...@listdomain.org>
List-Help: <mailto:list2-requ...@listdomain.org?subject=help>
List-Subscribe:
<http://listdomain.org/mailman/listinfo/list2_listdomain.org>,
<mailto:list2-requ...@listdomain.org?subject=subscribe>
From: Susan MsUser via list2 <li...@listdomain.org>
Reply-To: Susan MsUser <su...@hotmail.com>
Errors-To: list2-boun...@listdomain.org
Sender: "list2" <list2-boun...@listdomain.org>
My theory is that MS is (wrongly) dropping the "To" copy of list1 from
the reply because it's the From, and then (correctly) using the Reply-To
instead of the From.
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