NetBSD/gnu/dist/postfix/conf/pcre_table
perry 6f59dc7aeb Postfix 1.1.2
(Postfix releases are now numbered -- 1.1.2 means 1.1, patchlevel 2.)
Lots of new features, same great security.
2002-02-02 23:10:24 +00:00

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#
# PCRE_TABLE(5) PCRE_TABLE(5)
#
# NAME
# pcre_table - format of Postfix PCRE tables
#
# SYNOPSIS
# pcre:/etc/postfix/filename
#
# DESCRIPTION
# The Postfix mail system uses optional tables for address
# rewriting or mail routing. These tables are usually in dbm
# or db format. Alternatively, lookup tables can be speci-
# fied in Perl Compatible Regular Expression form.
#
# To find out what types of lookup tables your Postfix sys-
# tem supports use the postconf -m command.
#
# The general form of a PCRE table is:
#
# pattern result
# When pattern matches a search string, use the cor-
# responding result.
#
# blank lines and comments
# Empty lines and whitespace-only lines are ignored,
# as are lines whose first non-whitespace character
# is a `#'.
#
# multi-line text
# A logical line starts with non-whitespace text. A
# line that starts with whitespace continues a logi-
# cal line.
#
# Each pattern is a perl-like regular expression. The
# expression delimiter can be any character, except whites-
# pace or characters that have special meaning (tradition-
# ally the forward slash is used). The regular expression
# can contain whitespace.
#
# By default, matching is case-insensitive, although follow-
# ing the second slash with an `i' flag will reverse this.
# Other flags are supported, but the only other useful one
# is `U', which makes matching ungreedy (see PCRE documenta-
# tion and source for more info).
#
# Each pattern is applied to the entire lookup key string.
# Depending on the application, that string is an entire
# client hostname, an entire client IP address, or an entire
# mail address. Thus, no parent domain or parent network
# search is done, and user@domain mail addresses are not
# broken up into their user and domain constituent parts,
# nor is user+foo broken up into user and foo.
#
# Patterns are applied in the order as specified in the
# table, until a pattern is found that matches the search
# string.
#
# Substitution of substrings from the matched expression
# into the result string is possible using the conventional
# perl syntax ($1, $2, etc.). The macros in the result
# string may need to be written as ${n} or $(n) if they
# aren't followed by whitespace.
#
# EXAMPLE SMTPD ACCESS MAP
# # Protect your outgoing majordomo exploders
# /^(?!owner-)(.*)-outgoing@/ 550 Use ${1}@${2} instead
#
# # Bounce friend@whatever, except when whatever is our domain (you would
# # be better just bouncing all friend@ mail - this is just an example).
# /^friend@(?!my\.domain)/ 550 Stick this in your pipe $0
#
# # A multi-line entry. The text is sent as one line.
# #
# /^noddy@my\.domain$/
# 550 This user is a funny one. You really don't want to send mail to
# them as it only makes their head spin.
#
# EXAMPLE HEADER FILTER MAP
# /^Subject: make money fast/ REJECT
# /^To: friend@public\.com/ REJECT
#
# SEE ALSO
# regexp_table(5) format of POSIX regular expression tables
#
# AUTHOR(S)
# The PCRE table lookup code was originally written by:
# Andrew McNamara
# andrewm@connect.com.au
# connect.com.au Pty. Ltd.
# Level 3, 213 Miller St
# North Sydney, NSW, Australia
#
# Adopted and adapted by:
# Wietse Venema
# IBM T.J. Watson Research
# P.O. Box 704
# Yorktown Heights, NY 10598, USA
#
# 1
#