#	$NetBSD: sample-pcre-header.cf,v 1.3 2003/03/08 19:43:58 perry 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
#       pattern produces a successful match. 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.
#       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 OK, 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