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Starting on July 26, my email client started displaying a number |
| 2 |
of messages lacking subject lines. The messages were all cronjob |
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outputs. |
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|
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Here's a sample: |
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|
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From relson@×××××××××××××××××××.com Mon Jul 27 00:15:02 2009 |
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Return-Path: <relson@×××××××××××××××××××.com> |
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X-Original-To: root@×××××××××××××.com |
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Delivered-To: root@×××××××××××××.com |
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Received: from osage (osage.osagesoftware.com [192.168.1.10]) |
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by mail.osagesoftware.com (Postfix) with SMTP id AC1C27BC85 |
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for <root@×××××××××××××.com>; Mon, 27 Jul 2009 00:15:01 |
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-0400 (EDT) Received: by osage (sSMTP sendmail emulation); Mon, 27 |
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Jul 2009 00:13:02 -0400 From: is an optional port number that |
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defaults to 25. Message-Id: |
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<20090727041501.AC1C27BC85@××××××××××××××××××.com> Date: Mon, 27 |
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Jul 2009 00:15:01 -0400 (EDT) To: undisclosed-recipients:; |
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|
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Date: Mon, 27 Jul 2009 00:13:02 -0400 |
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To: root@×××××××××××××.com |
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Subject: Cron <relson@osage> /home/relson/bogofilter/mail/n2o |
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X-Cron-Env: <SHELL=/bin/bash> |
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X-Cron-Env: <PATH=/sbin:/bin:/usr/sbin:/usr/bin> |
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X-Cron-Env: <MAILTO=root@×××××××××××××.com> |
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X-Cron-Env: <HOME=/> |
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X-Cron-Env: <LOGNAME=relson> |
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X-Cron-Env: <USER=relson> |
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|
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...[snip]... |
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|
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The peculiar bits of this message are the lines |
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|
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From: is an optional port number that defaults to 25. |
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|
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and |
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|
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To: undisclosed-recipients:; |
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|
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What the heck is the "optional port number message" and why is there a |
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second "To:" line (with the first one being bogus). |
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|
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The blank line after the "To: undisclosed-recipients:;" line is also |
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strange, as a blank line is the separator between the message header |
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and the message body. This presence of this blank line causes a mail |
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client to ignore the "To: root..." and "Subject: " header lines. |
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|
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Checking /var/log/portage, I noticed that mail-mta:ssmtp-2.62-r4 was |
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upgraded to 2.62-r6 shortly before the messages started. After |
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downgrading back to r4, the problem went away. |
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|
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Anybody familiar with this problem and know the cause and what to do |
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about it? |
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