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MAKEPERCENTRELAY(8)         Double Precision, Inc.         MAKEPERCENTRELAY(8)


NAME

       makepercentrelay - Build a list of %-relayed domains


SYNOPSIS

       makepercentrelay


DESCRIPTION

       makepercentrelay reads /usr/local/etc/courier/esmtppercentrelay.dir and
       creates /usr/local/etc/courier/esmtppercentrelay.dat which is a binary
       database file. The files /usr/local/etc/courier/esmtppercentrelay and
       /usr/local/etc/courier/esmtppercentrelay.dat specify a list of
       "percent-hack" domains.  /usr/local/etc/courier/esmtppercentrelay is a
       plain text file, containing one domain per line. The Courier mail
       server loads the contents of /usr/local/etc/courier/esmtppercentrelay
       into memory, so if you have a lot of domains, you will want to use the
       binary database file. The makepercentrelay command reads
       /usr/local/etc/courier/esmtppercentrelay.dir, 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.

       the Courier mail server can use both
       /usr/local/etc/courier/esmtppercentrelay and
       /usr/local/etc/courier/esmtppercentrelay.dat at the same time. Usually
       you would put a couple of your most frequent domains in
       /usr/local/etc/courier/esmtppercentrelay, then put the rest in
       /usr/local/etc/courier/esmtppercentrelay.dir, and use makepercentrelay
       to turn it into a database file.

       "percent-hack" domains are a list of domains for which the Courier mail
       server accepts mail via ESMTP addressed as
       "local%percent.hack.domain@local.domain", where "percent.hack.domain"
       is a domain found in /usr/local/etc/courier/esmtppercentrelay or
       /usr/local/etc/courier/esmtppercentrelay.dat, and "local.domain" is any
       domain found in /usr/local/etc/courier/locals. The Courier mail server
       removes the local domain, and rewrites the address as
       "local@percent.hack.domain", then attempts to deliver it.

       The percent hack applies only to mail received via ESMTP. The Courier
       mail server does not check this list of domains if the message is
       received via any other way (such as by running /usr/local/bin/sendmail
       directly from the command line). "percent.hack.domain" would likely to
       be a domain that the Courier mail server knows how to handle via some
       other means. It might be an entry in /usr/local/etc/courier/aliases, or
       an entry in /usr/local/etc/courier/esmtproutes.


SEE ALSO

       esmtpd(8)[1], makealiases(8)[2].


AUTHOR

       Sam Varshavchik
           Author


NOTES

        1. esmtpd(8)
           [set $man.base.url.for.relative.links]/esmtpd.html

        2. makealiases(8)
           [set $man.base.url.for.relative.links]/makealiases.html

Courier Mail Server               02/10/2011               MAKEPERCENTRELAY(8)

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