Postfix: Block Spam

Edit

/etc/postfix/main.cf

Tambahkan

smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/sender_access,
 reject_invalid_hostname,
 reject_unknown_recipient_domain,
 reject_unauth_pipelining,
 permit_mynetworks,
 permit_sasl_authenticated,
 reject_unauth_destination,
 reject_rbl_client multi.uribl.com,
 reject_rbl_client dsn.rfc-ignorant.org,
 reject_rbl_client dul.dnsbl.sorbs.net,
 reject_rbl_client list.dsbl.org,
 reject_rbl_client sbl-xbl.spamhaus.org,
 reject_rbl_client bl.spamcop.net,
 reject_rbl_client dnsbl.sorbs.net,
 reject_rbl_client cbl.abuseat.org,
 reject_rbl_client ix.dnsbl.manitu.net,
 reject_rbl_client combined.rbl.msrbl.net,
 reject_rbl_client rabl.nuclearelephant.com,
 permit