• Postfix RBL / MTA level drop spam prior to it hitting spamassassin

    Date: 2010.03.22 | Category: Uncategorized

    This is the config I use to drop spam – paste this to the bottom of your main.cf:

    disable_vrfy_command = yes
smtpd_delay_reject = yes
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks,
reject_non_fqdn_hostname,
reject_invalid_hostname,
permit
smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination
reject_rbl_client list.dsbl.org,
reject_rbl_client sbl.spamhaus.org,
reject_rbl_client cbl.abuseat.org,
reject_rbl_client dul.dnsbl.sorbs.net,
smtpd_error_sleep_time = 1s
smtpd_soft_error_limit = 10
smtpd_hard_error_limit = 20

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