垃圾邮件处理

一定要做防垃圾邮件处理.

摘了某个老兄的。。。。。。

smtpd_sasl_auth_enable = yes
broken_sasl_auth_clients = yes
smtpd_sasl_security_options = noanonymous


smtpd_client_restrictions =

smtpd_helo_required = yes
smtpd_helo_restrictions =

smtpd_sender_restrictions =

smtpd_recipient_restrictions =
        permit_mynetworks,
        permit_sasl_authenticated,
        reject_unauth_destination,
        reject_invalid_hostname,
        check_sender_access  hash:/etc/postfix/sender_access,
        reject_unauth_pipelining,
        reject_non_fqdn_sender,
        reject_unknown_sender_domain,
        reject_unverified_sender,
        reject_multi_recipient_bounce,
        reject_non_fqdn_recipient,
        reject_unknown_recipient_domain,
        reject_rbl_client      cbl.abuseat.org,
        reject_rbl_client      dul.dnsbl.sorbs.net,
        reject_rbl_client      zen.spamhaus.org,
        reject_rbl_client      list.dsbl.org,
        reject_rbl_client      opm.blitzed.org,
        reject_rhsbl_sender    dsn.rfc-ignorant.org,
        permit