NetBSD/gnu/dist/postfix/conf/sample-pcre-header.cf

74 lines
3.5 KiB
CFEngine3

# $NetBSD: sample-pcre-header.cf,v 1.4 2004/03/27 16:31:19 heas Exp $
#
#
# Sample pcre (PERL-compatible regular expression) map file for
# message header filtering. See pcre_table(5) for syntax description.
#
# Message headers are filtered one at a time. This filter understands
# multi-line message headers, including MIME headers in the message
# body.
#
# The first field is a perl-like regular expression. The expression
# delimiter can be any character except whitespace, or characters
# that have special meaning to the regexp library (traditionally
# the forward slash is used). The regular expression can contain
# whitespace.
#
# By default, matching is case-INsensitive, although following
# the second slash with an 'i' will reverse this. Other flags are
# supported, but the only other useful one is 'U', which makes
# matching ungreedy (see PCRE documentation and source for more
# info).
#
# A block of table entries may be "enclosed" by a line with
# `if /pattern/flags' and a line with `endif'. This causes
# the block of table entries to be examined only when the
# search string matches the pattern. The `if..endif' may
# be nested. There currently is no `else' operator.
#
# The second field is the "replacement" string - the text
# returned by the match.
#
# REJECT [optional text...]
# Reject the entire message. The optional text is sent to
# the originator and is logged to the maillog file.
# OK Skip all further header patterns for this header line.
# IGNORE Silently ignore the message header.
# WARN [optional text...]
# Log the message header and the optional text. This is
# useful for testing. When the pattern is good, change the
# WARN into a REJECT or into a DISCARD.
# HOLD [optional text...]
# Place the message on the hold queue. Mail on hold can
# be inspected with the postcat command, and can be
# destroyed or taken off hold (i.e. delivered) with the
# postsuper command. The matched header is logged
# together with the optional text.
# DISCARD [optional text...]
# Claim successful delivery and silently discard the
# message. The matched header is logged together with
# the optional text.
# FILTER transport:nexthop
# After the message is queued, send the entire
# message through a content filter. This
# requires different cleanup servers before
# and after the filter, with header/body
# checks turned off in the second cleanup
# server. More information about content filters
# is in the Postfix FILTER_README file. This feature
# overrides the main.cf content_filter setting.
#
# Substitution of sub-strings from the matched expression is
# possible using the conventional perl syntax. The macros in the
# replacement string may need to be protected with curly braces
# if they aren't followed by whitespace (see the examples
# below).
#
# Lines starting with whitespace are continuation lines - they are
# appended to the previous line (there should be no whitespace
# before your regular expression!)
#
/^Subject: Make Money Fast/ REJECT
/^To: friend@public.com/ REJECT