Dear all, I have a setup with GNU Mailman 3.3.8 where a user tried to subscribe. When replying to the "confirm" message, the user received a completely garbled response, like so:
N�z˥�� ʋ�zf���&���j�����u�[zZ0:���v���,j�z֢��k�e�0 4Dҹ��r�^b��r�ߊ���*'���yם���{ax�L�X����0:���v���,j�z֢��k�d�m�-���zz�r n��l]y+���-E�( �^N��'��M���tۯ��Mz�����^i����}�o�\ӷ���6sN�zf���ݮ��r��z˥��������b�{h��݉��f�r�ne==
(The line above contains numerous unprintable characters, etc.) The user then forwarded the .eml file to me, which clearly shows the contents of the mail as plain text while being announced as base64 (Content-Transfer-Encoding: base64): START OF EML Return-Path: <LISTNAME-bounces@lists.DOMAIN.COM> Received: from DOMAIN.COM ([144.76.173.241]) by mx-ha.USERDOMAIN.NET (mx06 [IP]) with ESMTPS (Nemesis) id 1M27WV-1qhRFk39Sr-00AQcR for <USER@USERDOMAIN.NET>; Thu, 21 Sep 2023 19:10:37 +0200 Received: from localhost (localhost.localdomain [127.0.0.1]) by DOMAIN.COM (Postfix) with ESMTP id 4058B3BD5EEF for <USER@USERDOMAIN.NET>; Thu, 21 Sep 2023 19:10:37 +0200 (CEST) Received: from DOMAIN.COM ([127.0.0.1]) by localhost (DOMAIN.COM [127.0.0.1]) (amavis, port 10024) with ESMTP id x0ngnlRnGraH for <USER@USERDOMAIN.NET>; Thu, 21 Sep 2023 19:10:37 +0200 (CEST) Received: from [IP] (unknown [IP]) by DOMAIN.COM (Postfix) with ESMTP id DC8603BD5EEE for <USER@USERDOMAIN.NET>; Thu, 21 Sep 2023 19:10:36 +0200 (CEST) Subject: =?utf-8?q?The_results_of_your_email_commands?= From: LISTNAME-bounces@lists.DOMAIN.COM To: USER@USERDOMAIN.NET Content-Transfer-Encoding: base64 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Message-ID: <169531623416.29.5762261018677554285@mailman-core> Date: Thu, 21 Sep 2023 17:10:34 +0000 Precedence: bulk X-Mailman-Version: 3.3.8 List-Id: <LISTNAME.lists.DOMAIN.COM> List-Help: <mailto:LISTNAME-request@lists.DOMAIN.COM?subject=help> List-Owner: <mailto:LISTNAME-owner@lists.DOMAIN.COM> List-Subscribe: <mailto:LISTNAME-join@lists.DOMAIN.COM> List-Unsubscribe: <mailto:LISTNAME-leave@lists.DOMAIN.COM> Envelope-To: <USER@USERDOMAIN.NET> X-Spam-Flag: NO
The results of your email command are provided below.
Original message details: From: USER <USER@USERDOMAIN.NET> Subject: Re: Your confirmation is needed to join the LISTNAME@lists.DOMAIN.COM mailing list. Date: Thu, 21 Sep 2023 19:10:26 +0200 Message-ID: <3c1eaaf8-1677-432f-b9dc-07f18902c06c@email.android.com>
Results: Confirmation token did not match
Done.
END OF EML
Is this possibly a bug in Mailman? Any ideas on what else could be causing this?