Starting on July 26, my email client started displaying a number
of messages lacking subject lines. The messages were all cronjob
outputs.
Here's a sample:
From rel...@osage.osagesoftware.com Mon Jul 27 00:15:02 2009
Return-Path: <rel...@osage.osagesoftware.com>
X-Original-To: r...@osagesoftware.com
Delivered-To: r...@osagesoftware.com
Received: from osage (osage.osagesoftware.com [192.168.1.10])
by mail.osagesoftware.com (Postfix) with SMTP id AC1C27BC85
for <r...@osagesoftware.com>; Mon, 27 Jul 2009 00:15:01
-0400 (EDT) Received: by osage (sSMTP sendmail emulation); Mon, 27
Jul 2009 00:13:02 -0400 From: is an optional port number that
defaults to 25. Message-Id:
<20090727041501.ac1c27b...@mail.osagesoftware.com> Date: Mon, 27
Jul 2009 00:15:01 -0400 (EDT) To: undisclosed-recipients:;
Date: Mon, 27 Jul 2009 00:13:02 -0400
To: r...@osagesoftware.com
Subject: Cron <rel...@osage> /home/relson/bogofilter/mail/n2o
X-Cron-Env: <SHELL=/bin/bash>
X-Cron-Env: <PATH=/sbin:/bin:/usr/sbin:/usr/bin>
X-Cron-Env: <mailto=r...@osagesoftware.com>
X-Cron-Env: <HOME=/>
X-Cron-Env: <LOGNAME=relson>
X-Cron-Env: <USER=relson>
...[snip]...
The peculiar bits of this message are the lines
From: is an optional port number that defaults to 25.
and
To: undisclosed-recipients:;
What the heck is the "optional port number message" and why is there a
second "To:" line (with the first one being bogus).
The blank line after the "To: undisclosed-recipients:;" line is also
strange, as a blank line is the separator between the message header
and the message body. This presence of this blank line causes a mail
client to ignore the "To: root..." and "Subject: " header lines.
Checking /var/log/portage, I noticed that mail-mta:ssmtp-2.62-r4 was
upgraded to 2.62-r6 shortly before the messages started. After
downgrading back to r4, the problem went away.
Anybody familiar with this problem and know the cause and what to do
about it?
