nisplus_table - Man Page

Postfix NIS+ client


postmap -q "string" "nisplus:[name=%s];"

postmap -q - "nisplus:[name=%s];" <inputfile


The Postfix mail system uses optional lookup tables. These tables are usually in dbm or db format. 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.

Query Syntax

Most of the NIS+ query is specified via the NIS+ map name. The general format of a Postfix NIS+ map name is as follows:


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


A NIS+ aliases map might be queried as follows:

    alias_maps = dbm:/etc/mail/aliases,

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

See Also

postmap(1), Postfix lookup table manager

Readme Files

Use "postconf readme_directory" or "postconf html_directory" to locate this information.

DATABASE_README, Postfix lookup table overview


The Secure Mailer license must be distributed with this software.


Geoff Gibbs
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

Referenced By