NetBSD/gnu/dist/postfix/html/relocated.5.html

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RELOCATED(5) RELOCATED(5)
<b>NAME</b>
relocated - format of Postfix relocated table
<b>SYNOPSIS</b>
<b>postmap</b> <b>/etc/postfix/relocated</b>
<b>DESCRIPTION</b>
The optional <b>relocated</b> table provides the information that
is used in "user has moved to <i>new_location</i>" bounce mes-
sages.
Normally, the <b>relocated</b> table is specified as a text file
that serves as input to the <a href="postmap.1.html"><b>postmap</b>(1)</a> command. The
result, an indexed file in <b>dbm</b> or <b>db</b> format, is used for
fast searching by the mail system. Execute the command
<b>postmap</b> <b>/etc/postfix/relocated</b> in order to rebuild the
indexed file after changing the relocated table.
When the table is provided via other means such as NIS,
LDAP or SQL, the same lookups are done as for ordinary
indexed files.
Alternatively, the table can be provided as a regular-
expression map where patterns are given as regular expres-
sions. In that case, the lookups are done in a slightly
different way as described below.
Table lookups are case insensitive.
<b>TABLE</b> <b>FORMAT</b>
The format of the table is as follows:
<b>o</b> An entry has one of the following form:
<i>key</i> <i>new_location</i>
Where <i>new_location</i> specifies contact information
such as an email address, or perhaps a street
address or telephone number.
<b>o</b> Empty lines and whitespace-only lines are ignored,
as are lines whose first non-whitespace character
is a `#'.
<b>o</b> A logical line starts with non-whitespace text. A
line that starts with whitespace continues a logi-
cal line.
With lookups from indexed files such as DB or DBM, or from
networked tables such as NIS, LDAP or SQL, the <i>key</i> field
is one of the following:
<i>user</i>@<i>domain</i>
Matches <i>user</i>@<i>domain</i>. This form has precedence over
all other forms.
<i>user</i> Matches <i>user</i>@<i>site</i> when <i>site</i> is $<b>myorigin</b>, when <i>site</i>
is listed in $<b>mydestination</b>, or when <i>site</i> is listed
in $<b>inet</b><i>_</i><b>interfaces</b>.
@<i>domain</i>
Matches every address in <i>domain</i>. This form has the
lowest precedence.
<b>ADDRESS</b> <b>EXTENSION</b>
When a mail address localpart contains the optional recip-
ient delimiter (e.g., <i>user+foo</i>@<i>domain</i>), the lookup order
becomes: <i>user+foo</i>@<i>domain</i>, <i>user</i>@<i>domain</i>, <i>user+foo</i>, <i>user</i>, and
@<i>domain</i>.
<b>REGULAR</b> <b>EXPRESSION</b> <b>TABLES</b>
This section describes how the table lookups change when
the table is given in the form of regular expressions. For
a description of regular expression lookup table syntax,
see <a href="regexp_table.5.html"><b>regexp</b><i>_</i><b>table</b>(5)</a> or <a href="pcre_table.5.html"><b>pcre</b><i>_</i><b>table</b>(5)</a>.
Each pattern is a regular expression that is applied to
the entire address being looked up. Thus, <i>user@domain</i> mail
addresses are not broken up into their <i>user</i> and <i>@domain</i>
constituent parts, nor is <i>user+foo</i> broken up into <i>user</i> and
<i>foo</i>.
Patterns are applied in the order as specified in the
table, until a pattern is found that matches the search
string.
Results are the same as with indexed file lookups, with
the additional feature that parenthesized substrings from
the pattern can be interpolated as <b>$1</b>, <b>$2</b> and so on.
<b>BUGS</b>
The table format does not understand quoting conventions.
<b>CONFIGURATION</b> <b>PARAMETERS</b>
The following <b>main.cf</b> parameters are especially relevant
to this topic. See the Postfix <b>main.cf</b> file for syntax
details and for default values. Use the <b>postfix</b> <b>reload</b>
command after a configuration change.
<b>relocated</b><i>_</i><b>maps</b>
List of lookup tables for relocated users or sites.
Other parameters of interest:
<b>inet</b><i>_</i><b>interfaces</b>
The network interface addresses that this system
receives mail on. You need to stop and start Post-
fix when this parameter changes.
<b>mydestination</b>
List of domains that this mail system considers
local.
<b>myorigin</b>
The domain that is appended to locally-posted mail.
<b>SEE</b> <b>ALSO</b>
<a href="postmap.1.html">postmap(1)</a> create lookup table
<a href="pcre_table.5.html">pcre_table(5)</a> format of PCRE tables
<a href="regexp_table.5.html">regexp_table(5)</a> format of POSIX regular expression tables
<b>LICENSE</b>
The Secure Mailer license must be distributed with this
software.
<b>AUTHOR(S)</b>
Wietse Venema
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA
RELOCATED(5)
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