#battle against SPAM!

smtpd_helo_required = yes
disable_vrfy_command = yes

smtpd_recipient_restrictions =
permit_mynetworks,
permit_sasl_authenticated
reject_invalid_hostname,
reject_non_fqdn_hostname,
reject_non_fqdn_sender,
reject_non_fqdn_recipient,
reject_unknown_sender_domain,
reject_unknown_recipient_domain,
reject_unauth_destination,
reject_rbl_client sbl-xbl.spamhaus.org,
reject_rbl_client relays.ordb.org,
reject_rbl_client opm.blitzed.org,
reject_rbl_client list.dsbl.org,
reject_rbl_client ucbl.abuseat.org,
reject_rbl_client dul.dnsbl.sorbs.net,
reject_rbl_client bl.spamcop.net
permit
smtpd_data_restrictions =
reject_unauth_pipelining,
permit