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<?xml version="1.0"?>
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><title>makepercentrelay</title><link rel="stylesheet" type="text/css" href="style.css"/><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"/><link rel="home" href="#makepercentrelay" title="makepercentrelay"/><link xmlns="" rel="stylesheet" type="text/css" href="manpage.css"/><meta xmlns="" name="MSSmartTagsPreventParsing" content="TRUE"/><link xmlns="" rel="icon" href="icon.gif" type="image/gif"/><!--
Copyright 1998 - 2009 Double Precision, Inc. See COPYING for distribution
information.
--></head><body><div class="refentry"><a id="makepercentrelay" shape="rect"> </a><div class="titlepage"/><div class="refnamediv"><h2>Name</h2><p>makepercentrelay — Build a list of %-relayed domains</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="command">makepercentrelay</code> </p></div></div><div class="refsect1"><a id="makepercentrelay_description" shape="rect"> </a><h2>DESCRIPTION</h2><p>
<span class="command"><strong>makepercentrelay</strong></span> reads
<code class="filename">@sysconfdir@/esmtppercentrelay.dir</code>
and creates <code class="filename">@sysconfdir@/esmtppercentrelay.dat</code> which is a
binary
database file. The files <code class="filename">@sysconfdir@/esmtppercentrelay</code>
and
<code class="filename">@sysconfdir@/esmtppercentrelay.dat</code> specify a list of
"percent-hack"
domains. <code class="filename">@sysconfdir@/esmtppercentrelay</code> is a plain text
file,
containing one domain per line.
The <span class="application">Courier</span> mail server loads the
contents of
<code class="filename">@sysconfdir@/esmtppercentrelay</code> into memory, so if you
have a lot of
domains, you will want to use the binary database file. The
<span class="command"><strong>makepercentrelay</strong></span> command reads
<code class="filename">@sysconfdir@/esmtppercentrelay.dir</code>, which can be either
a plain text
file itself, or a directory containing plain text files. All files in the
subdirectory are concatenated, and the binary database file is created from
the result.</p><p>
the <span class="application">Courier</span> mail server can use both <code class="filename">@sysconfdir@/esmtppercentrelay</code> and
<code class="filename">@sysconfdir@/esmtppercentrelay.dat</code> at the same time.
Usually you
would put a couple of your most frequent domains in
<code class="filename">@sysconfdir@/esmtppercentrelay</code>, then put the rest in
<code class="filename">@sysconfdir@/esmtppercentrelay.dir</code>, and use
<span class="command"><strong>makepercentrelay</strong></span> to turn it into a database file.</p><p>
"percent-hack" domains are a list of domains for which the <span class="application">Courier</span> mail server accepts mail
via ESMTP addressed as "local%percent.hack.domain@local.domain", where
"percent.hack.domain" is a domain found in
<code class="filename">@sysconfdir@/esmtppercentrelay</code> or
<code class="filename">@sysconfdir@/esmtppercentrelay.dat</code>, and
"<code class="literal">local.domain</code>" is any domain
found in <code class="filename">@sysconfdir@/locals</code>.
The <span class="application">Courier</span> mail server removes the local
domain, and
rewrites the address as "<code class="literal">local@percent.hack.domain</code>", then
attempts to deliver it.</p><p>
The percent hack applies only to mail received via ESMTP.
The <span class="application">Courier</span> mail server does not
check this list of domains if the message is received via any other way (such
as by running <span class="command"><strong>@bindir@/sendmail</strong></span> directly from the command
line).
"<code class="literal">percent.hack.domain</code>" would likely to be a domain that
the <span class="application">Courier</span> mail server
knows how to handle via some other means. It might be an entry in
<code class="filename">@sysconfdir@/aliases</code>, or an entry in
<code class="filename">@sysconfdir@/esmtproutes</code>.</p></div><div class="refsect1"><a id="makepercentrelay_see_also" shape="rect"> </a><h2>SEE ALSO</h2><p>
<a class="ulink" href="esmtpd.html" target="_top" shape="rect"><span class="citerefentry"><span class="refentrytitle">esmtpd</span>(8)</span></a>,
<a class="ulink" href="makealiases.html" target="_top" shape="rect"><span class="citerefentry"><span class="refentrytitle">makealiases</span>(8)</span></a>.</p></div></div></body></html>
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