6f59dc7aeb
(Postfix releases are now numbered -- 1.1.2 means 1.1, patchlevel 2.) Lots of new features, same great security.
107 lines
4.0 KiB
Plaintext
107 lines
4.0 KiB
Plaintext
#
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# REGEXP_TABLE(5) REGEXP_TABLE(5)
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#
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# NAME
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# regexp_table - format of Postfix regular expression tables
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#
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# SYNOPSIS
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# regexp:/etc/postfix/filename
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#
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# DESCRIPTION
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# The Postfix mail system uses optional tables for address
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# rewriting or mail routing. These tables are usually in dbm
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# or db format. Alternatively, lookup tables can be speci-
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# fied in POSIX regular expression form.
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#
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# To find out what types of lookup tables your Postfix sys-
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# tem supports use the postconf -m command.
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#
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# The general form of a Postfix regular expression table is:
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#
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# pattern result
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# When pattern matches a search string, use the cor-
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# responding result.
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#
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# blank lines and comments
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# Empty lines and whitespace-only lines are ignored,
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# as are lines whose first non-whitespace character
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# is a `#'.
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#
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# multi-line text
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# A logical line starts with non-whitespace text. A
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# line that starts with whitespace continues a logi-
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# cal line.
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#
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# pattern1!pattern2 result
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# Matches pattern1 but not pattern2.
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#
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# Each pattern is a regular expression enclosed by a pair of
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# delimiters. The regular expression syntax is described in
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# re_format(7). The expression delimiter can be any charac-
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# ter, except whitespace or characters that have special
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# meaning (traditionally the forward slash is used). The
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# regular expression can contain whitespace.
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#
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# By default, matching is case-insensitive, although follow-
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# ing the second slash with an `i' flag will reverse this.
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# Other flags are `x' (disable extended expression syntax),
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# and `m' (enable multi-line mode).
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#
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# Each pattern is applied to the entire lookup key string.
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# Depending on the application, that string is an entire
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# client hostname, an entire client IP address, or an entire
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# mail address. Thus, no parent domain or parent network
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# search is done, and user@domain mail addresses are not
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# broken up into their user and domain constituent parts,
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# nor is user+foo broken up into user and foo.
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#
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# Patterns are applied in the order as specified in the
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# table, until a pattern is found that matches the search
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# string.
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#
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# Substitution of substrings from the matched expression
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# into the result string is possible using $1, $2, etc.. The
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# macros in the result string may need to be written as ${n}
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# or $(n) if they aren't followed by whitespace.
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#
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# EXAMPLE SMTPD ACCESS MAP
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# # Disallow sender-specified routing. This is a must if you relay mail
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# # for other domains.
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# /[%!@].*[%!@]/ 550 Sender-specified routing rejected
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#
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# # Postmaster is OK, that way they can talk to us about how to fix
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# # their problem.
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# /^postmaster@/ OK
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#
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# # Protect your outgoing majordomo exploders
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# /^(.*)-outgoing@(.*)$/!/^owner-/ 550 Use ${1}@${2} instead
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#
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# EXAMPLE HEADER FILTER MAP
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# # These were once common in junk mail.
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# /^Subject: make money fast/ REJECT
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# /^To: friend@public\.com/ REJECT
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#
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# SEE ALSO
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# pcre_table(5) format of PCRE tables
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#
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# AUTHOR(S)
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# The regexp table lookup code was originally written by:
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# LaMont Jones
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# lamont@hp.com
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#
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# That code was based on the PCRE dictionary contributed by:
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# Andrew McNamara
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# andrewm@connect.com.au
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# connect.com.au Pty. Ltd.
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# Level 3, 213 Miller St
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# North Sydney, NSW, Australia
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#
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# Adopted and adapted by:
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# Wietse Venema
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# IBM T.J. Watson Research
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# P.O. Box 704
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# Yorktown Heights, NY 10598, USA
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#
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# 1
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#
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