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<title>getmail troubleshooting (version 4)</title>
<meta name="author" content="Charles Cazabon" />
<meta name="description" content="Troubleshooting instructions for getmail version 4" />
<meta name="keywords" content="getmail troubleshooting, getmail 4 troubleshooting, POP3, IMAP, SSL, domain mailbox, multidrop, fetchmail replacement, message filtering, maildir, mboxrd, MDA" />
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<!----><h1 id="title">getmail documentation</h1>
<p class="introduction">
This is the documentation for getmail version 4. Version 4 includes
numerous changes from version 3.x; if you are using getmail version 3,
please refer to the documentation included with that version of the
software.
</p>
<p class="about">
getmail is Copyright © 1998-2004 Charles Cazabon.
</p>
<p class="about">
getmail is licensed under the
<a href="COPYING">GNU General Public License version 2</a>
(only). If you wish to obtain a license to distribute getmail under other
terms, please contact me directly.
</p>
<h1 id="toc">Table of Contents</h1>
<ul>
<li><a href="documentation.html">getmail documentation</a></li>
<li>
<ul>
<li><a href="documentation.html#title">getmail documentation</a></li>
<li>
<ul>
<li><a href="documentation.html#features">Features</a></li>
<li><a href="documentation.html#v4differences">Differences from previous versions</a></li>
<li><a href="documentation.html#requirements">Requirements</a></li>
<li><a href="documentation.html#obtaining">Obtaining getmail</a></li>
<li><a href="documentation.html#installing">Installing getmail</a></li>
<li><a href="documentation.html#mailing-lists">getmail mailing lists</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="configuration.html">getmail configuration</a></li>
<li>
<ul>
<li><a href="configuration.html#configuring">Configuring getmail</a></li>
<li>
<ul>
<li><a href="configuration.html#rcfile">Creating a getmail rc file</a></li>
</ul>
</li>
<li><a href="configuration.html#running">Running getmail</a></li>
<li>
<ul>
<li><a href="configuration.html#running-commandline-options">Commandline options</a></li>
<li><a href="configuration.html#running-mda">Using getmail as an MDA</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="troubleshooting.html">getmail troubleshooting</a></li>
<li>
<ul>
<li><a href="troubleshooting.html#troubleshooting">Troubleshooting problems</a></li>
<li>
<ul>
<li><a href="troubleshooting.html#error-messages">Error messages</a></li>
<li>
<ul>
<li><a href="troubleshooting.html#errmsg-pyversion">ImportError: getmail version 4 requires Python version 2.3.3 or later</a></li>
<li><a href="troubleshooting.html#errmsg-config">Configuration error: …</a></li>
<li>
<ul>
<li><a href="troubleshooting.html#errmsg-config-missing-parameter">Configuration error: missing required configuration parameter <span class="meta">name</span></a></li>
<li><a href="troubleshooting.html#errmsg-config-parameter-wrong-type">Configuration error: configuration value <span class="meta">name</span> (<span class="meta">value</span>) not of required type <span class="meta">type</span> (<span class="meta">why</span>)</a></li>
<li><a href="troubleshooting.html#errmsg-config-maildir-slash">Configuration error: maildir path missing trailing /</a></li>
<li><a href="troubleshooting.html#errmsg-config-maildir-not">Configuration error: not a maildir (<span class="meta">path</span>)</a></li>
<li><a href="troubleshooting.html#errmsg-config-mboxrd-not">Configuration error: not an mboxrd file (<span class="meta">path</span>)</a></li>
<li><a href="troubleshooting.html#errmsg-config-mboxrd-missing">Configuration error: mboxrd does not exist</a></li>
<li><a href="troubleshooting.html#errmsg-config-envelope-recipient">Configuration error: the <span class="meta">fieldname</span> header field does not record the envelope recipient address</a></li>
<li><a href="troubleshooting.html#errmsg-config-root-commands">Configuration error: refuse to invoke external commands as root or GID 0 by default</a></li>
<li><a href="troubleshooting.html#errmsg-config-no-command">Configuration error: no such command <span class="meta">path</span></a></li>
<li><a href="troubleshooting.html#errmsg-config-command-not-executable">Configuration error: <span class="meta">path</span> not executable</a></li>
<li><a href="troubleshooting.html#errmsg-config-missing-section">Configuration error: destination specifies section name <span class="meta">section</span> which does not exist</a></li>
</ul>
</li>
<li><a href="troubleshooting.html#errmsg-delivery">Delivery error …</a></li>
<li>
<ul>
<li><a href="troubleshooting.html#errmsg-delivery-root-maildir">Delivery error: maildir delivery process failed (refuse to deliver mail as root)</a></li>
<li><a href="troubleshooting.html#errmsg-delivery-root-mbox">Delivery error: mbox delivery process failed (refuse to deliver mail as root)</a></li>
<li><a href="troubleshooting.html#errmsg-delivery-not-mbox">Delivery error: mbox delivery process failed (not an mboxrd file)</a></li>
</ul>
</li>
<li><a href="troubleshooting.html#errmsg-operation-">Error: …</a></li>
<li>
<ul>
<li><a href="troubleshooting.html#errmsg-operation-notunique">Error: <span class="meta">server-info</span> does not uniquely identify messages …</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="troubleshooting.html#warning-messages">Warning messages</a></li>
<li>
<ul>
<li><a href="troubleshooting.html#warnmsg">Warning: …</a></li>
<li>
<ul>
<li><a href="troubleshooting.html#warnmsg-unknown-parameter">Warning: ignoring unknown parameter "<span class="meta">parameter_name</span>"</a></li>
<li><a href="troubleshooting.html#warnmsg-filterheaders">Warning: filter <span class="meta">filter</span> returned fewer headers (X) than supplied (Y)</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="troubleshooting.html#unexpected-behaviour">Unexpected Behaviour</a></li>
<li>
<ul>
<li><a href="troubleshooting.html#unexpected-hostname">getmail uses the wrong hostname for my machine</a></li>
<li><a href="troubleshooting.html#unexpected-unknown">getmail puts "unknown" in the <span class="file">Delivered-To:</span> or <span class="file">Return-Path:</span>header field</a></li>
<li><a href="troubleshooting.html#unexpected-recipient">getmail isn't replacing my command argument "%(recipient)" with the message recipient address</a></li>
<li><a href="troubleshooting.html#unexpected-slow-startup">getmail seems to take longer than expected to initialize</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li><a href="faq.html">getmail frequently-asked questions (FAQs)</a></li>
<li>
<ul>
<li><a href="faq.html#faq">Frequently-Asked Questions (FAQs)</a></li>
<li>
<ul>
<li><a href="faq.html#faq-about">About getmail</a></li>
<li><a href="faq.html#faq-configuring">Configuring getmail</a></li>
<li><a href="faq.html#faq-how">How do I …</a></li>
<li><a href="faq.html#faq-integrating">Using getmail with other software</a></li>
<li><a href="faq.html#faq-notabug">I think I found this bug in getmail …</a></li>
</ul>
</li>
</ul>
</li>
</ul>
<h1 id="troubleshooting">Troubleshooting problems</h1>
<p>
This section of the documentation is to be added to as getmail version 4
progresses through beta testing to release state. If you have
suggestions for additions or changes to this documentation, please
send them to the mailing list or me.
</p>
<!-- ********************************************************************** -->
<h2 id="error-messages">Error messages</h2>
<p>
getmail may output various diagnostic error messages. The common ones and
their meanings are given below.
</p>
<!-- ********************************************************************** -->
<h3 id="errmsg-pyversion" class="errmsg">ImportError: getmail version 4 requires Python version 2.3.3 or later</h3>
<p>
You tried to run getmail 4 with a version of Python prior to Python 2.3.3.
This is unsupported. If you cannot install a newer Python alongside your
current version, please use getmail version 3, which supports Python 1.5.2
and later.
</p>
<!-- ********************************************************************** -->
<h3 id="errmsg-config" class="errmsg">Configuration error: …</h3>
<p>
getmail detected an error in your configuration. Check your getmail rc
file(s). getmail will do its best to point out the exact cause of the
error. Some of the specific errors it may find include the following.
</p>
<h4 id="errmsg-config-missing-parameter" class="errmsg">Configuration error: missing required configuration parameter <span class="meta">name</span></h4>
<p>
A class object in your getmail rc file requires the parameter
<span class="meta">name</span>,
but it was not found in the appropriate section of the file.
</p>
<h4 id="errmsg-config-parameter-wrong-type" class="errmsg">Configuration error: configuration value <span class="meta">name</span> (<span class="meta">value</span>) not of required type <span class="meta">type</span> (<span class="meta">why</span>)</h4>
<p>
The configuration parameter
<span class="meta">name</span>
must be of type
<span class="meta">type</span>,
but the supplied value
<span class="meta">value</span>
does not appear to be of that type. Further information may be present in
<span class="meta">why</span>.
</p>
<p>
The getmail documentation contains
<a href="configuration.html#parametertypes">descriptions of the syntax for each parameter type</a>.
</p>
<h4 id="errmsg-config-maildir-slash" class="errmsg">Configuration error: maildir path missing trailing /</h4>
<p>
Maildir paths must start with dot or slash and end with a slash.
</p>
<h4 id="errmsg-config-maildir-not" class="errmsg">Configuration error: not a maildir (<span class="meta">path</span>)</h4>
<p>
The specified maildir path
<span class="meta">path</span>
does not appear to be a valid maildir. Check to ensure that it is a valid
maildir, and that getmail has permission to write to it.
</p>
<h4 id="errmsg-config-mboxrd-not" class="errmsg">Configuration error: not an mboxrd file (<span class="meta">path</span>)</h4>
<p>
The specified mboxrd path
<span class="meta">path</span>
does not appear to be a valid mboxrd file. To avoid corrupting files in
the event of a user typo, getmail will not deliver messages to files that
do not appear to be valid mboxrd files.
</p>
<h4 id="errmsg-config-mboxrd-missing" class="errmsg">Configuration error: mboxrd does not exist</h4>
<p>
The specified mboxrd does not exist. getmail will not create mbox files;
ensure they exist before trying to deliver to them.
</p>
<h4 id="errmsg-config-envelope-recipient" class="errmsg">Configuration error: the <span class="meta">fieldname</span> header field does not record the envelope recipient address</h4>
<p>
In a multidrop retriever configuration, you specified that the envelope
recipient was recorded in a header field that getmail knows does not
actually record that information.
</p>
<h4 id="errmsg-config-root-commands" class="errmsg">Configuration error: refuse to invoke external commands as root or GID 0 by default</h4>
<p>
By default, getmail will not invoke external commands (in destinations or
filters) when it is running with root privileges, for security reasons.
See the documenation for possible solutions.
</p>
<h4 id="errmsg-config-no-command" class="errmsg">Configuration error: no such command <span class="meta">path</span></h4>
<p>
An external command was specified as being located at path
<span class="meta">path</span>,
but the command executable was not found at that location.
</p>
<h4 id="errmsg-config-command-not-executable" class="errmsg">Configuration error: <span class="meta">path</span> not executable</h4>
<p>
A specified external command at path
<span class="meta">path</span>
was found to not be an executable file.
</p>
<h4 id="errmsg-config-missing-section" class="errmsg">Configuration error: destination specifies section name <span class="meta">section</span> which does not exist</h4>
<p>
A destination in the getmail rc file refers to another rc file section named
<span class="meta">section</span>,
but that section was not found in the file.
</p>
<!-- ********************************************************************** -->
<h3 id="errmsg-delivery" class="errmsg">Delivery error …</h3>
<p>
getmail detected an error after retrieving a message but before delivery was
successfully completed.
Some of the specific errors it may find include the following.
</p>
<h4 id="errmsg-delivery-root-maildir" class="errmsg">Delivery error: maildir delivery process failed (refuse to deliver mail as root)</h4>
<p>
getmail will not deliver to a maildir as the root user. You may specify an
alternate user to deliver as with the
<span class="file">user</span>
directive in the destination section of your
<span class="file">getmailrc</span>
file, or let getmail default to the user who is the owner of the maildir.
</p>
<h4 id="errmsg-delivery-root-mbox" class="errmsg">Delivery error: mbox delivery process failed (refuse to deliver mail as root)</h4>
<p>
getmail will not deliver to an mbox file as the root user. You may specify
an alternate user to deliver as with the
<span class="file">user</span>
directive in the destination section of your
<span class="file">getmailrc</span>
file, or let getmail default to the user who is the owner of the mbox file.
</p>
<h4 id="errmsg-delivery-not-mbox" class="errmsg">Delivery error: mbox delivery process failed (not an mboxrd file)</h4>
<p>
The specified mbox file does not appear to be a valid mbox file.
</p>
<!-- ********************************************************************** -->
<h3 id="errmsg-operation-" class="errmsg">Error: …</h3>
<p>
getmail detected an operational error. getmail will do its best to point
out the exact cause of the error. Common causes are failures to connect
to a remote mail server, timeouts during network operations, and other
transient failures.
</p>
<h4 id="errmsg-operation-notunique" class="errmsg">Error: <span class="meta">server-info</span> does not uniquely identify messages …</h4>
<p>
The POP3 server for this particular account was not able to uniquely identify
the messages in the mailstore. You can use the
<span class="file">BrokenUIDLPOP3Retriever</span> class with this server instead,
but functionality is limited because of the inability to identify messages
properly.
</p>
<!-- ********************************************************************** -->
<h2 id="warning-messages">Warning messages</h2>
<p>
getmail may output various diagnostic warning messages. The common ones and
their meanings are given below.
</p>
<!-- ********************************************************************** -->
<h3 id="warnmsg" class="warnmsg">Warning: …</h3>
<p>
getmail detected a condition which might be problematic.
Some of the specific warnings it may find include the following.
</p>
<h4 id="warnmsg-unknown-parameter" class="warnmsg">Warning: ignoring unknown parameter "<span class="meta">parameter_name</span>"</h4>
<p>
A getmail rc file contained an unknown parameter. This usually indicates
that you've put the parameter in the wrong section of the file (such as
putting the
<span class="file">read_all</span>
parameter in the
<span class="file">[retriever]</span>
section instead of in the
<span class="file">[options]</span>
section).
</p>
<h4 id="warnmsg-filterheaders" class="warnmsg">Warning: filter <span class="meta">filter</span> returned fewer headers (X) than supplied (Y)</h4>
<p>
A
<a href="configuration.html#conf-filters">message filter</a>
appeared to incorrectly remove header fields from the header of a message
which it handled. getmail warns you about this so that you can check your
filter for proper operation. Filters should add information to the message
header or leave it alone; check the configuration for the filter program you
are using.
</p>
<!-- ********************************************************************** -->
<h2 id="unexpected-behaviour">Unexpected Behaviour</h2>
<p>
If getmail is behaving in a manner other that you expected, see the
following sections.
</p>
<h3 id="unexpected-hostname">getmail uses the wrong hostname for my machine</h3>
<p>
If getmail records a hostname other than the "right" one for
your host (in its Received: trace header fields), check your
<span class="file">/etc/hosts</span>
file and make sure the "right" name is the first hostname
listed for any of the addresses of the machine.
</p>
<h3 id="unexpected-unknown">getmail puts "unknown" in the <span class="file">Delivered-To:</span> or <span class="file">Return-Path:</span>header field</h3>
<p>
getmail records the envelope recipient address in the
<span class="file">Delivered-To:</span>
header field, and the envelope sender in the
<span class="file">Return-Path:</span>
header field. If this information is not available (because you're not
using a multidrop retriever class, or the MTA on the POP/IMAP server is
broken, for example), getmail uses the string "unknown". You can
disable the creation of the
<span class="file">Delivered-To:</span>
header field if you wish.
</p>
<h3 id="unexpected-recipient">getmail isn't replacing my command argument "%(recipient)" with the message recipient address</h3>
<p>
The
<span class="file">%(recipient)</span>,
<span class="file">%(local)</span>,
and
<span class="file">%(domain)</span>
replacement strings are only replaced if the message is retrieved with
a multidrop retriever class; otherwise, getmail does not "know"
the recipient address of the message, and therefore cannot perform this
replacement.
</p>
<h3 id="unexpected-slow-startup">getmail seems to take longer than expected to initialize</h3>
<p>
If getmail takes more than a few seconds to initialize, run the following
command to test:
</p>
<pre class="example">
python -c "import socket; print socket.getfqdn()"
</pre>
<p>
If this seems to take a similarly long period of time to complete, the delay
is in finding the fully-qualified hostname of your system. The fix is to
ensure you have a valid mapping of address-to-hostname for all the addresses
in your system. You can do this in your
<span class="file">/etc/hosts</span>
file, in your authoritative content DNS server, or in another
system-specific manner — please contact your OS vendor (or its
public support mailing list) for assistance.
</p>
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