/etc/postfix/main.cf
- Проверка приветствия (HELO)
smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unknown_reverse_client_hostname, reject_invalid_helo_hostname, reject_non_fqdn_helo_hostname, reject_unknown_helo_hostname
- Проверка отправителя
smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks, check_sender_access hash:/etc/mail/access, reject_non_fqdn_sender, reject_unknown_sender_domain, reject_unverified_sender
- Проверка получателя
smtpd_recipient_restrictions = permit_sasl_authenticated, check_recipient_access hash:/etc/mail/access, permit_mynetworks, reject_non_fqdn_recipient, reject_unauth_pipelining, reject_unauth_destination, check_policy_service unix:private/policy-spf, reject_unlisted_recipient, reject_unverified_recipient, check_policy_service inet:127.0.0.1:60000
- Проверка существования адреса отправителя
address_verify_sender = $double_bounce_sender