This almost certainly has nothing to do with Mailman, if I'm reading the spamassassin reports correctly. It says that the DKIM signature validated on the way out of Mailman, which means that the From that you all received is the From that Trent sent.
Gao writes: > Hi, > > I have a strange thing happened and I could not figure it out what is going > on. Here is what happened: > 1. Syd V <[email protected]> sent an email to our mailing list > [email protected] > 2. Trent replied to the list > 3. All list members received Trent's reply, BUT with wrong FROM address. It > appears Trent's reply is from Syd. ??? > 4. I talked to Trent and asked him to do another reply to list, and this > time everything is correct. He can not re-produce this error. > > I post the header section from Trent's reply as well as the maillog here. > > I am using mailman 2.1.15 on a CentOS7+Postfix. > > Could someone give me some hints on how this happened and how to fix it? > > Thanks. > > Gao > > ================ > header: > ---------------- > Return-Path: <[email protected]> > X-Original-To: [email protected] > Delivered-To: [email protected] > Received: by zeta.mydomain.com (Postfix, from userid 5001) > id D92DA2015FD6E; Tue, 20 Sep 2016 09:18:18 -0700 (PDT) > Received: from zeta.mydomain.com (localhost [IPv6:::1]) > by zeta.mydomain.com (Postfix) with ESMTP id E3B7120158EC5; > Tue, 20 Sep 2016 09:18:11 -0700 (PDT) > DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=mydomain.com; > s=szeta; t=1474388291; > bh=tiwZ4VEiU1RZzIFTSx2DZbnLAXPUQDkUd1sc9ss5YiM=; > h=From:To:Date:Subject:List-Id:List-Unsubscribe:List-Archive: > List-Post:List-Help:List-Subscribe:Reply-To; > b=jq8Dilf8Kcjca3CTkC/LVSrii3G2RTO6z6TYQXPhWWqDlM1Q0DNS3WSco0TgV6PPY > 7p/AObLxO/cOyvDbtf9ejQ7XDTipWhCicV7Qq/7fi+7q2J9p/xPqIweTqci0gBeIQR > sXE1AvP7V7e94W+FGQoYsBnQBV6jmHsGo4shrRp4= > X-Original-To: [email protected] > Delivered-To: [email protected] > Received: by zeta.mydomain.com (Postfix, from userid 5001) > id EB63E20158EC6; Tue, 20 Sep 2016 09:18:04 -0700 (PDT) > Received: from [192.168.123.87] (vpn.mydomain.com [111.111.111.111]) > (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) > (No client certificate requested) > by zeta.mydomain.com (Postfix) with ESMTPSA id 36FFF20158EC6 > for <[email protected]>; Tue, 20 Sep 2016 09:18:02 -0700 (PDT) > DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=mydomain.com; > s=szeta; t=1474388282; > bh=ABUiYP5lz8c1gfzYye+PUoTjcGicHkgvhh6PstHMBZ4=; > h=From:Subject:Reply-To:To:Date; > b=tHH79YeXgMzTwDugmsEGJ6yIIaTYOjjbse4jy1P99gW8AE7cvd8SEWqiC/xEcShZc > RlvFvIrL3Bub8w7RfL+4k+JURE0YHRIhKlEx4LHo+TSic2tBEY06oXUrZuvQEMcn3T > r9VpzkEcV5BWytqZgYvxRarJOv7Huh2vP8LuZBGE= > From: Syd V <[email protected]> > To: [email protected] > Message-ID: <[email protected]> > Date: Tue, 20 Sep 2016 09:17:56 -0700 > User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 > Thunderbird/45.2.0 > MIME-Version: 1.0 > Content-Type: multipart/mixed; > boundary="------------677E4034B35AA62A233129E2" > X-mydomain-MailScanner: Found to be clean, Found to be clean > X-mydomain-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, > score=-6.095, required 4, autolearn=not spam, ALL_TRUSTED -1.00, > BAYES_00 -1.90, DKIM_SIGNED 0.10, DKIM_VALID -0.10, > DKIM_VALID_AU -0.10, HTML_MESSAGE 0.00, RP_MATCHES_RCVD -3.10), not spam, > SpamAssassin (not cached, > score=-6.095, required 4, ALL_TRUSTED -1.00, BAYES_00 -1.90, > DKIM_SIGNED 0.10, DKIM_VALID -0.10, DKIM_VALID_AU -0.10, > HTML_MESSAGE 0.00, RP_MATCHES_RCVD -3.10) > X-Spam-Status: No, No > Subject: [Sjv-geosupport] Update on timing and instrumentation files > X-BeenThere: [email protected] > X-Mailman-Version: 2.1.15 > Precedence: list > List-Id: <sjv-geosupport.mydomain.com> > List-Unsubscribe: <http://zeta.mydomain.com/mailman/options/sjv-geosupport>, > <mailto:[email protected]?subject=unsubscribe> > List-Archive: <http://zeta.mydomain.com/mailman/private/sjv-geosupport/> > List-Post: <mailto:[email protected]> > List-Help: <mailto:[email protected]?subject=help> > List-Subscribe: <http://zeta.mydomain.com/mailman/listinfo/sjv-geosupport>, > <mailto:[email protected]?subject=subscribe> > Reply-To: Syd Visser <[email protected]> > Errors-To: [email protected] > Sender: "Sjv-geosupport" <[email protected]> > X-mydomain-MailScanner-Information: Please contact the IT Administrator for > more information > X-mydomain-MailScanner-ID: E3B7120158EC5.ABE01 > X-mydomain-MailScanner-From: [email protected] > > > ============================= > maillog: > ----------------------------- > Sep 20 09:18:02 zeta postfix/smtpd[24662]: connect from > vpn.mydomain.com[111.111.111.111] > Sep 20 09:18:02 zeta postfix/smtpd[24662]: Anonymous TLS connection > established from vpn.mydomain.com[111.111.111.111]: TLSv1.2 with ciphe > r ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits) > Sep 20 09:18:02 zeta postfix/smtpd[24662]: 36FFF20158EC6: > client=vpn.mydomain.com[111.111.111.111], sasl_method=PLAIN, > [email protected] > Sep 20 09:18:02 zeta postfix/cleanup[24538]: 36FFF20158EC6: hold: header > Received: from [192.168.123.87] (vpn.mydomain.com [111.111.111.111])??(using > TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))??(No client > certificate requested)??by zeta.mydomain. from > vpn.mydomain.com[111.111.111.111]; from=<[email protected]> > to=<[email protected]> proto=ESMTP helo=<[192.168.123.87]> > Sep 20 09:18:02 zeta postfix/cleanup[24538]: 36FFF20158EC6: > message-id=<[email protected]> > Sep 20 09:18:02 zeta opendkim[3099]: 36FFF20158EC6: DKIM-Signature field > added (s=szeta, d=mydomain.com) > Sep 20 09:18:02 zeta postfix/smtpd[24662]: disconnect from > vpn.mydomain.com[111.111.111.111] > Sep 20 09:18:02 zeta MailScanner[20657]: New Batch: Scanning 1 messages, > 18122 bytes > Sep 20 09:18:02 zeta MailScanner[20657]: Virus and Content Scanning: Starting > Sep 20 09:18:02 zeta MailScanner[20657]: Spam Checks: Starting > Sep 20 09:18:04 zeta MailScanner[20657]: Message 36FFF20158EC6.A07F8 from > 111.111.111.111 ([email protected]) to mydomain.com is not spam, > SpamAssassin (not cached, score=-6.095, required 4, autolearn=not spam, > ALL_TRUSTED -1.00, BAYES_00 -1.90, DKIM_SIGNED 0.10, DKIM_VALID -0.10, > DKIM_VALID_AU -0.10, HTML_MESSAGE 0.00, RP_MATCHES_RCVD -3.10) > Sep 20 09:18:04 zeta MailScanner[20657]: Requeue: 36FFF20158EC6.A07F8 to > 3603320158ECB > Sep 20 09:18:04 zeta postfix/qmgr[6820]: 3603320158ECB: > from=<[email protected]>, size=16818, nrcpt=1 (queue active) > Sep 20 09:18:04 zeta MailScanner[20657]: Uninfected: Delivered 1 messages > Sep 20 09:18:04 zeta MailScanner[20657]: Deleted 1 messages from > processing-database > Sep 20 09:18:04 zeta MailScanner[20657]: Logging message 36FFF20158EC6.A07F8 > to SQL > Sep 20 09:18:04 zeta MailScanner[22108]: 36FFF20158EC6.A07F8: Logged to > MailWatch SQL > Sep 20 09:18:04 zeta postfix/pickup[21381]: EB63E20158EC6: uid=5001 > from=<[email protected]> > Sep 20 09:18:04 zeta postfix/pipe[24825]: 3603320158ECB: > to=<[email protected]>, > orig_to=<[email protected]>, relay=autoresponder, delay=2.7, > delays=2.7/0/0/0.02, dsn=2.0.0, status=sent (delivered via autoresponder > service) > Sep 20 09:18:04 zeta postfix/qmgr[6820]: 3603320158ECB: removed > Sep 20 09:18:04 zeta postfix/cleanup[24407]: EB63E20158EC6: hold: header > Received: by zeta.mydomain.com (Postfix, from userid 5001)??id > EB63E20158EC6; Tue, 20 Sep 2016 09:18:04 -0700 (PDT) from local; > from=<[email protected]> to=<[email protected]> > Sep 20 09:18:04 zeta postfix/cleanup[24407]: EB63E20158EC6: > message-id=<[email protected]> > Sep 20 09:18:10 zeta MailScanner[22098]: New Batch: Scanning 1 messages, > 18148 bytes > Sep 20 09:18:10 zeta MailScanner[22098]: Requeue: EB63E20158EC6.A4FB8 to > BE0D320158ECB > Sep 20 09:18:10 zeta MailScanner[22098]: Unscanned: Delivered 1 messages > Sep 20 09:18:10 zeta postfix/qmgr[6820]: BE0D320158ECB: > from=<[email protected]>, size=17844, nrcpt=1 (queue active) > Sep 20 09:18:10 zeta MailScanner[22098]: Spam Checks: Starting > Sep 20 09:18:10 zeta MailScanner[22098]: Deleted 1 messages from > processing-database > Sep 20 09:18:10 zeta MailScanner[22098]: Logging message EB63E20158EC6.A4FB8 > to SQL > Sep 20 09:18:10 zeta MailScanner[22108]: EB63E20158EC6.A4FB8: Logged to > MailWatch SQL > Sep 20 09:18:10 zeta postfix/local[25085]: BE0D320158ECB: > to=<[email protected]>, relay=local, delay=5.5, > delays=5.4/0.01/0/0.1, dsn=2.0.0, status=sent (delivered to command: > /usr/lib/mailman/mail/mailman post sjv-geosupport) > Sep 20 09:18:10 zeta postfix/qmgr[6820]: BE0D320158ECB: removed > Sep 20 09:18:11 zeta postfix/smtpd[24800]: connect from localhost[::1] > Sep 20 09:18:11 zeta postfix/smtpd[24800]: E3B7120158EC5: > client=localhost[::1] > Sep 20 09:18:11 zeta postfix/cleanup[24538]: E3B7120158EC5: hold: header > Received: from zeta.mydomain.com (localhost [IPv6:::1])??by > zeta.mydomain.com (Postfix) with ESMTP id E3B7120158EC5;??Tue, 20 Sep 2016 > 09:18:11 -0700 (PDT) from localhost[::1]; > from=<[email protected]> to=<[email protected]> > proto=ESMTP helo=<zeta.mydomain.com> > Sep 20 09:18:11 zeta postfix/cleanup[24538]: E3B7120158EC5: > message-id=<[email protected]> > Sep 20 09:18:11 zeta opendkim[3099]: E3B7120158EC5: DKIM-Signature field > added (s=szeta, d=mydomain.com) > Sep 20 09:18:12 zeta postfix/smtpd[24800]: disconnect from localhost[::1] > Sep 20 09:18:16 zeta MailScanner[22098]: Virus and Content Scanning: Starting > Sep 20 09:18:16 zeta MailScanner[22098]: Spam Checks: Starting > Sep 20 09:18:16 zeta MailScanner[22098]: Message E3B7120158EC5.ABE01 from > ::1 ([email protected]) ignored whitelist, had 33 > recipients (>20) > Sep 20 09:18:18 zeta MailScanner[22098]: Message E3B7120158EC5.ABE01 from > ::1 ([email protected]) to mydomain.com is not spam, > SpamAssassin (not cached, score=-6.095, required 4, ALL_TRUSTED -1.00, > BAYES_00 -1.90, DKIM_SIGNED 0.10, DKIM_VALID -0.10, DKIM_VALID_AU -0.10, > HTML_MESSAGE 0.00, RP_MATCHES_RCVD -3.10) > Sep 20 09:18:18 zeta MailScanner[22098]: Requeue: E3B7120158EC5.ABE01 to > 0233620158EC0 > Sep 20 09:18:18 zeta MailScanner[22098]: Uninfected: Delivered 1 messages > Sep 20 09:18:18 zeta postfix/qmgr[6820]: 0233620158EC0: > from=<[email protected]>, size=19224, nrcpt=33 (queue > active) > Sep 20 09:18:18 zeta MailScanner[22098]: Deleted 1 messages from > processing-database > ..... > > > ------------------------------------------------------ > Mailman-Users mailing list [email protected] > https://mail.python.org/mailman/listinfo/mailman-users > Mailman FAQ: http://wiki.list.org/x/AgA3 > Security Policy: http://wiki.list.org/x/QIA9 > Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ > Unsubscribe: > https://mail.python.org/mailman/options/mailman-users/turnbull.stephen.fw%40u.tsukuba.ac.jp > > ------------------------------------------------------ Mailman-Users mailing list [email protected] https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org
