Dear All,
One of our users posted an email using a Bluemail Desktop client on one of
the mailing lists. This email bounced with the reason "501 Message has
defects". However, it gets accepted if the same user posts the same email
on the same mailing list using Webmail (RoundCube) or Thunderbird.
There is nothing in mailman.log and bounce.log, even in debug mode.
Following is the SMTP log for the same email posting and the email header.
Any guidance in debugging this will be highly appreciated.
Regards,
Hitachi.
*SMTP.LOG:*
Apr 21 18:00:47 2025 (1979121) Available AUTH mechanisms: LOGIN(builtin)
PLAIN(builtin)
Apr 21 18:00:47 2025 (1979121) Peer: ('127.0.0.1', 44502)
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) handling connection
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) << b'220
lists.example.com GNU Mailman LMTP runner 2.0'
Apr 21 18:00:47 2025 (1979121) _handle_client readline: b'LHLO lists\r\n'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) >> b'LHLO lists'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) << b'
250-lists.example.com'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) << b'250-SIZE 33554432'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) << b'250-8BITMIME'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) << b'250 HELP'
Apr 21 18:00:47 2025 (1979121) _handle_client readline: b'MAIL FROM:<
us...@example.com> SIZE=3086\r\n'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) >> b'MAIL FROM:<
us...@example.com> SIZE=3086'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) sender:
us...@example.com
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) << b'250 OK'
Apr 21 18:00:47 2025 (1979121) _handle_client readline: b'RCPT TO:<
prodlist-...@example.com>\r\n'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) >> b'RCPT TO:<
prodlist-...@example.com>'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) recip:
prodlist-...@example.com
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) << b'250 Ok'
Apr 21 18:00:47 2025 (1979121) _handle_client readline: b'DATA\r\n'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) >> b'DATA'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) << b'354 End data with
<CR><LF>.<CR><LF>'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Received: from
relay.example.com (relay.example.com [10.198.5.2])\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\tby lists (Postfix) with
QMQP id 9AFF48D\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\tfor <
prodlist-...@example.com>; Mon, 21 Apr 2025 18:00:47 +0530 (IST)\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Delivered-To: CLUSTERHOST
relay.example.com prodlist-...@example.com\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Received: (qmail 7951
invoked from network); 21 Apr 2025 18:00:47 +0530\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Received: from unknown
(HELO smtp2.example.com) ([10.198.12.2])\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' (envelope-sender <
us...@example.com>)\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' by
relay.example.com (qmail-ldap-1.03) with SMTP\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' for <
prodlist-...@example.com>; 21 Apr 2025 18:00:47 +0530\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Received: (qmail 2533
invoked by uid 510); 21 Apr 2025 18:00:47 +0530\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline:
b'X-Qmail-Scanner-Diagnostics: from 10.198.12.3 by smtp2 (envelope-from <
us...@example.com>, uid 501) with qmail-scanner-2.11\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' spamassassin: 3.4.1. mhr:
1.0. {clamdscan: 0.100.0/26337} \r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'
Clear:RC:1(10.198.12.3):SA:0(-6.0/7.0):. Processed in 3.727185 secs; 21 Apr
2025 18:00:47 +0530\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'X-Spam-Checker-Version:
SpamAssassin 3.4.1 (2015-04-28) on smtp2.example.com\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'X-Spam-Level: \r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'X-Spam-Status: No,
score=-6.0 required=7.0 tests=BAYES_20,HTML_MESSAGE,\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline:
b'\tIITB_ORIG,IITB_TARGET_ADDRESS,INTRA_IITB_MAIL,PROPER_IITB_MSGID\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\tautolearn=disabled
version=3.4.1\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'X-Spam-Pyzor: Reported 0
times.\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'X-Envelope-From:
us...@example.com\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline:
b'X-Qmail-Scanner-Mime-Attachments: |\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'X-Qmail-Scanner-Zip-Files:
|\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Received: from unknown
(HELO smtp3.example.com) (10.198.12.3)\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' by smtp2.example.com with
SMTP; 21 Apr 2025 18:00:43 +0530\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Received: from
smtp-auth.example.com (smtpauth1.example.com [10.198.8.1])\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\tby smtp3.example.com
(Postfix) with ESMTP id B70D4341971\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\tfor <
prodlist-...@example.com>; Mon, 21 Apr 2025 18:00:43 +0530 (IST)\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Received: from localhost (
pruthvi.example.com [10.100.100.95])\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\t(using TLSv1.2 with
cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\t(No client certificate
requested)\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\t(Authenticated sender:
us...@example.com)\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\tby smtp-auth.example.com
(Postfix) with ESMTPSA id AB0CB30C340\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\tfor <
prodlist-...@example.com>; Mon, 21 Apr 2025 18:00:43 +0530 (IST)\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Content-Type:
multipart/alternative;\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'
boundary="----sinikael-?=_1-17452386440190.1454723563624738"\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'From: user1 <
us...@example.com>\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Subject: test mail 14\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'To: prodlist-...@example.com
\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Message-Id: <
934811260a4bf.44bbdcec3e...@example.com>\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Content-Transfer-Encoding:
quoted-printable\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Date: Mon, 21 Apr 2025
12:30:38 +0000\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'MIME-Version: 1.0\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline:
b'------sinikael-?=_1-17452386440190.1454723563624738\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Content-Type:
text/plain\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Content-Transfer-Encoding:
7bit\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'test mail 14 Get BlueMail
for Desktop\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline:
b'------sinikael-?=_1-17452386440190.1454723563624738\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Content-Type: text/html;
format=flowed\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'Content-Transfer-Encoding:
7bit\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline:
b'<html><head></head><body><div>\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' <div dir="auto"
id="compose-body-wrapper">test mail 14</div><div \r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'dir="auto"
id="compose-body-wrapper"><br></div><div dir="auto" \r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline:
b'id="compose-body-wrapper"><br>\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' <div
dir="auto"><br></div>\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' <div dir="auto"
id="tmjah_g_1299">\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' Get BlueMail for
Desktop\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' </div>\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' <div
dir="auto"><br></div>\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' </div>\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b' </div></body></html>\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline:
b'------sinikael-?=_1-17452386440190.1454723563624738--\r\n'
Apr 21 18:00:47 2025 (1979121) DATA readline: b'.\r\n'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) << b'501 Message has
defects'
Apr 21 18:00:47 2025 (1979121) _handle_client readline: b'QUIT\r\n'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) >> b'QUIT'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) << b'221 Bye'
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) connection lost
Apr 21 18:00:47 2025 (1979121) ('127.0.0.1', 44502) Connection lost during
_handle_client()
*EMAIL HEADER:*
Content-Type: multipart/alternative;
boundary="----sinikael-?=_1-17452386441150.6962994414278503"
From: user1 <us...@example.com>
Subject: test mail 14
To: prodlist-...@example.com
Message-Id: <934811260a4bf.44bbdcec3e...@example.com>
Content-Transfer-Encoding: quoted-printable
Date: Mon, 21 Apr 2025 12:30:38 +0000
MIME-Version: 1.0
------sinikael-?=_1-17452386441150.6962994414278503
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
test mail 14 Get BlueMail for Desktop
------sinikael-?=_1-17452386441150.6962994414278503
Content-Type: text/html; format=flowed
Content-Transfer-Encoding: 7bit
<html><head></head><body><div>
<div dir="auto" id="compose-body-wrapper">test mail 14</div><div
dir="auto" id="compose-body-wrapper"><br></div><div dir="auto"
id="compose-body-wrapper"><br>
<div dir="auto"><br></div>
<div dir="auto" id="tmjah_g_1299">
Get BlueMail for Desktop
</div>
<div dir="auto"><br></div>
</div>
</div></body></html>
------sinikael-?=_1-17452386441150.6962994414278503--
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