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+.TH NISPLUS_TABLE 5 
+.ad
+.fi
+.SH NAME
+nisplus_table
+\-
+Postfix NIS+ client
+.SH "SYNOPSIS"
+.na
+.nf
+\fBpostmap \-q "\fIstring\fB" "nisplus:[\fIname\fB=%s];\fIname.name.\fB"\fR
+
+\fBpostmap \-q \- "nisplus:[\fIname\fB=%s];\fIname.name.\fB" <\fIinputfile\fR
+.SH DESCRIPTION
+.ad
+.fi
+The Postfix mail system uses optional lookup tables.
+These tables are usually in \fBdbm\fR or \fBdb\fR format.
+Alternatively, lookup tables can be specified as NIS+
+databases.
+
+To find out what types of lookup tables your Postfix system
+supports use the "\fBpostconf \-m\fR" command.
+
+To test Postfix NIS+ lookup tables, use the "\fBpostmap \-q\fR"
+command as described in the SYNOPSIS above.
+.SH "QUERY SYNTAX"
+.na
+.nf
+.ad
+.fi
+Most of the NIS+ query is specified via the NIS+ map name. The
+general format of a Postfix NIS+ map name is as follows:
+
+.fi
+    \fBnisplus:[\fIname\fB=%s];\fIname.name.name\fB.:\fIcolumn\fR
+.fi
+
+Postfix NIS+ map names differ from what one normally
+would use with commands such as \fBniscat\fR:
+.IP \(bu
+With each NIS+ table lookup, "\fB%s\fR" is replaced by a
+version of the lookup string.  There can be only one
+"\fB%s\fR" instance in a Postfix NIS+ map name.
+.IP \(bu
+Postfix NIS+ map names use "\fB;\fR" instead of "\fB,\fR",
+because the latter character is special in the Postfix
+main.cf file.  Postfix replaces "\fB;\fR" characters in
+the map name by "\fB,\fR" before making NIS+ queries.
+.IP \(bu
+The ":\fIcolumn\fR" 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 ":\fIcolumn\fR" is specified the first column (1) is used.
+.SH "EXAMPLE"
+.na
+.nf
+.ad
+.fi
+A NIS+ aliases map might be queried as follows:
+
+.nf
+    alias_maps = dbm:/etc/mail/aliases,
+        nisplus:[alias=%s];mail_aliases.org_dir.$mydomain.:1
+.fi
+
+This queries the local aliases file before the NIS+ file.
+.SH "SEE ALSO"
+.na
+.nf
+postmap(1), Postfix lookup table manager
+.SH "README FILES"
+.na
+.nf
+.ad
+.fi
+Use "\fBpostconf readme_directory\fR" or
+"\fBpostconf html_directory\fR" to locate this information.
+.na
+.nf
+DATABASE_README, Postfix lookup table overview
+.SH "LICENSE"
+.na
+.nf
+.ad
+.fi
+The Secure Mailer license must be distributed with this software.
+.SH "AUTHOR(S)"
+.na
+.nf
+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