dnl
dnl filter mail through spamassassin
dnl
INPUT_MAIL_FILTER(`spamassassin', `S=local:/var/run/spamass.sock, F=, T=C:15m;S:4m;R:4m;E:10m')
dnl
dnl misc setups
dnl
FEATURE(always_add_domain)dnl
FEATURE(`access_db')dnl
FEATURE(`blacklist_recipients')dnl
FEATURE(`allmasquerade')dnl
FEATURE(`delay_checks')dnl
FEATURE(`relay_hosts_only')dnl
dnl
dnl block blacklisted relays. 
dnl the selection below has a balance between false negatives and false positives
dnl
FEATURE(`dnsbl')dnl
FEATURE(dnsbl,`blackholes.mail-abuse.org', `Rejected: your mail was sent using an open relay - see http://www.mail-abuse.org/rbl/.')dnl
FEATURE(dnsbl,`dialups.mail-abuse.org', `Rejected: your mail was sent using an open dialup relay - see http://www.mail-abuse.org/dul/')dnl
FEATURE(dnsbl,`relays.mail-abuse.org', `Rejected: your mail was sent using an open relay - see http://work-rss.mail-abuse.org/rss/')dnl
FEATURE(dnsbl,`relays.ordb.org', `Rejected: your mail was sent using an open relay - see http://ordb.org/')dnl
FEATURE(dnsbl,`inputs.orbz.org', `Rejected: your mail was sent using an open input relay - see http://orbz.org/')dnl
FEATURE(dnsbl,`dev.null.dk', `Rejected: your mail was sent using an open relay - see http://dev.null.dk/')dnl
FEATURE(dnsbl,`relays.visi.com', `Rejected: your mail was sent using an open relay - see http://relays.visi.com/')dnl
FEATURE(dnsbl, `bl.spamcop.net', `"Spam blocked see: http://spamcop.net/bl.shtml?" $&{client_addr}')dnl