#!/bin/sh
#
# spamc.sh
#
# Simple filter to plug SpamAssassin only
# into the Postfix MTA, using the spamc / spamd
# daemon version of SpamAssassin.
#
# (Should result in higher performance on busy servers)
#
# NOTE: spamd must be running before using this script!
#
# From http://advosys.ca/papers/postfix-filtering.html
# Advosys Consulting Inc., Ottawa
#
# For use with:
#    Postfix 20010228 or later
#    SpamAssassin 2.42 or later
#
# Note: Modify the file locations to match your particular
#       server

# File locations:
# (CHANGE AS REQUIRED TO MATCH YOUR SERVER)
SENDMAIL="/usr/lib/sendmail -i"
ANOMY=/usr/local/anomy
ANOMY_CONF=/usr/local/anomy/anomy.conf
ANOMY_LOG=/dev/null
SPAMC=/usr/bin/spamc

export ANOMY

# Exit codes from <sysexits.h>
EX_TEMPFAIL=75
EX_UNAVAILABLE=69

cat | $SPAMC -f -u filter 2>/dev/null \
	| $ANOMY/bin/sanitizer.pl $ANOMY_CONF 2>>$ANOMY_LOG \
	| $SENDMAIL "$@" || \
	{ echo Message content rejected; exit $EX_UNAVAILABLE; }

exit 0