On 10/22/19 2:20 AM, Tamas HOLCZER via Mailman-users wrote:
Hi All,
we have moved to Mailman3 from Mailman2 recently, and have a quite strange problem:
Every message sent to owners is forwarded to the lists instead of the owner's mail address. ... We are using GNU Mailman 3.2.1 (La Villa Strangiato) from the Debian Buster repo. As MTA we use exim4 (running on the same machine as Mailman), and have Amavisd on a separate machine for spam filtering.
This may be an exim configuration issue. You can stop the mail from being delivered to the list by ensuring the Postorius Settings - Message Acceptance -> Acceptable aliases is empty and Settings - Message Acceptance -> Require Explicit Destination is Yes. This will cause the messages to -owner, etc to be held.
First ensure exim, particularly the router for list messages is configured as in <https://mailman.readthedocs.io/en/latest/src/mailman/docs/mta.html#exim4-con...>.
From MYLIST-bounces@MYDOMAIN.COM Mon Oct 21 21:13:59 2019 Return-path: <MYLIST-bounces@MYDOMAIN.COM> Envelope-to: MYADDRESS@MYDOMAIN.COM Delivery-date: Mon, 21 Oct 2019 21:13:59 +0200 Received: from [SPAMFILTER] (helo=localhost) by MAILSERVER.MYDOMAIN.COM with esmtp (Exim 4.92) (envelope-from <MYLIST-bounces@MYDOMAIN.COM>) id 1iMd7u-0007pv-VR; Mon, 21 Oct 2019 21:13:59 +0200 X-Virus-Scanned: by amavis-dc Received: from MAILSERVER.MYDOMAIN.COM ([MAILSERVER-LOCAL-IP]) by localhost (spamfilter.MYDOMAIN.COM [SPAMFILTER]) (amavisd-new, port 10023) with ESMTP id Pe6CPG7d_0VR; Mon, 21 Oct 2019 21:13:57 +0200 (CEST) Received: from MAILSERVER2.MYDOMAIN.COM ([MAILSERVER-PUBLIC-IP] helo=MAILSERVER.MYDOMAIN.COM) by MAILSERVER.MYDOMAIN.COM with esmtp (Exim 4.92) (envelope-from <MYLIST-bounces@MYDOMAIN.COM>) id 1iMd7t-0007pn-Mu; Mon, 21 Oct 2019 21:13:57 +0200
It seems the issue occurs here. The Received: header below is the receipt of the message from Mailman to MYLIST-owner. That header clearly says the envelope recipient is MYLIST-owner@MYDOMAIN.COM.
Then the header above looks like the delivery of the message from the Mailman list to one or more list members. What we don't see is the intermediate step of LMTP delivery of the message to Mailman's LMTP server. That delivery must have had envelope recipient MYLIST@MYDOMAIN.COM rather than MYLIST-owner@MYDOMAIN.COM
I think what's missing is rcpt_include_affixes = true in the exim
transport for Mailman.
Received: from MAILSERVER2.MYDOMAIN.COM ([MAILSERVER-PUBLIC-IP] helo=MAILSERVER.MYDOMAIN.COM) by MAILSERVER.MYDOMAIN.COM with esmtp (Exim 4.92) (envelope-from <MYLIST-bounces@MYDOMAIN.COM>) id 1iMd7r-0007pR-JZ for MYLIST-owner@MYDOMAIN.COM; Mon, 21 Oct 2019 21:13:55 +0200 From: MYLIST-owner@MYDOMAIN.COM To: MYLIST-owner@MYDOMAIN.COM
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan