DNS 설정

SPF, MX 레코드 설정

lists                   IN      A       192.168.10.13
                        IN      TXT     "v=spf1 ip4:192.168.10.13 ~all"
                        IN      MX      10 lists.kreonet.net.


리버스 DNS 설정

$ORIGIN 10.168.192.in-addr.arpa.
13      IN      PTR     lists.kreonet.net.


relay 제한

myorigin = lists.kreonet.net
mydestination = lists.kreonet.net, localhost.localdomain, localhost
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination


수신 제한

SPF 조회

RBL(Realtime Black List) 설정

smtpd_recipient_restrictions =
  permit_mynetworks,
  permit_sasl_authenticated,
  reject_unauth_destination,
  check_policy_service unix:private/policyd-spf,
  reject_rbl_client spamlist.or.kr,
  reject_rbl_client xbl.spamhaus.org,
  reject_rbl_client zen.spamhaus.org,
  reject_rbl_client dyndns.rbl.jp,
  reject_rbl_client short.rbl.jp,
  reject_rbl_client url.rbl.jp,
  reject_rbl_client virus.rbl.jp,
  reject_rbl_client zombie.dnsbl.sorbs.net