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NISPLUS_TABLE(5) NISPLUS_TABLE(5)

<a name="name">NAME</a>
 nisplus_table - Postfix NIS+ client

<a name="synopsis">SYNOPSIS</a>
 postmap -q "string" "<a href="nisplus_table.5.html">nisplus</a>:[name=%s];name.name."

 postmap -q - "<a href="nisplus_table.5.html">nisplus</a>:[name=%s];name.name." <inputfile

<a name="description">DESCRIPTION</a>
 The Postfix mail system uses optional lookup tables. rewriting or mail
 routing. These tables are usually in <a href="lmdb_table.5.html">lmdb</a>:, <a href="CDB_README.html">cdb</a>:, <a href="DATABASE_README.html#types">hash</a>:, or <a href="DATABASE_README.html#types">dbm</a>: for-
 mat.

 Alternatively, lookup tables can be specified as NIS+ databases. To
 find out what types of lookup tables your Postfix system supports use
 the "postconf -m" command.

 To test Postfix NIS+ lookup tables, use the "postmap -q" command as
 described in the SYNOPSIS above.

<a name="query_syntax">QUERY SYNTAX</a>
 Most of the NIS+ query is specified via the NIS+ map name. The general
 format of a Postfix NIS+ map name is as follows:

 <a href="nisplus_table.5.html">nisplus</a>:[name=%s];name.name.name.:column

 Postfix NIS+ map names differ from what one normally would use with
 commands such as niscat:

 o With each NIS+ table lookup, "%s" is replaced by a version of
 the lookup string. There can be only one "%s" instance in a
 Postfix NIS+ map name.

 o Postfix NIS+ map names use ";" instead of ",", because the lat-
 ter character is special in the Postfix <a href="postconf.5.html">main.cf</a> file. Postfix
 replaces ";" characters in the map name by "," before making
 NIS+ queries.

 o The ":column" part in the NIS+ map name is not part of the
 actual NIS+ query. Instead, it specifies the number of the table
 column that provides the lookup result. When no ":column" is
 specified the first column (1) is used.

<a name="example">EXAMPLE</a>
 A NIS+ aliases map might be queried as follows:

 <a href="postconf.5.html#alias_maps">alias_maps</a> = <a href="DATABASE_README.html#types">dbm</a>:/etc/mail/aliases,
 <a href="nisplus_table.5.html">nisplus</a>:[alias=%s];mail_aliases.org_dir.$<a href="postconf.5.html#mydomain">mydomain</a>.:1

 This queries the local aliases file before the NIS+ file.

<a name="see_also">SEE ALSO</a>
 <a href="postmap.1.html">postmap(1)</a>, Postfix lookup table manager

<a name="readme_files">README FILES</a>
 <a href="DATABASE_README.html">DATABASE_README</a>, Postfix lookup table overview

<a name="license">LICENSE</a>
 The Secure Mailer license must be distributed with this software.

AUTHOR(S)
 Geoff Gibbs
 UK-HGMP-RC
 Hinxton
 Cambridge
 CB10 1SB, UK

 Adopted and adapted by:
 Wietse Venema
 IBM T.J. Watson Research
 P.O. Box 704
 Yorktown Heights, NY 10598, USA

 Wietse Venema
 Google, Inc.
 111 8th Avenue
 New York, NY 10011, USA

 NISPLUS_TABLE(5)
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