postfix反垃圾邮件设置

# smtpd related config
smtpd_recipient_restrictions =
  permit_mynetworks,
  permit_sasl_authenticated,
#  reject_non_fqdn_hostname,
  reject_non_fqdn_sender,
  reject_non_fqdn_recipient,
  reject_unauth_destination,
  reject_unauth_pipelining,
  reject_invalid_hostname

smtpd_sender_restrictions =
  permit_mynetworks,
  check_recipient_access hash:/etc/postfix/local_recipient,
  permit_sasl_authenticated,
  reject_sender_login_mismatch,
  reject_authenticated_sender_login_mismatch,
  reject_unauthenticated_sender_login_mismatch,
  reject_unknown_sender_domain

# SMTP AUTH config here
broken_sasl_auth_clients = yes
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous