smtpd_recipient_restrictions = permit_mynetworks,
reject_invalid_hostname,
reject_non_fqdn_hostname,
reject_non_fqdn_sender,
reject_non_fqdn_recipient,
reject_unauth_destination,
reject_unknown_sender_domain,
reject_unknown_recipient_domain,
check_helo_access hash:/etc/postfix/helo_checks,
check_policy_service inet:127.0.0.1:100023
check_recipient_access hash:/etc/postfix/recipient_checks
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks,
reject_invalid_helo_hostname,
reject_non_fqdn_helo_hostname
smtpd_sender_restrictions = reject_non_fqdn_sender,
reject_unknown_sender_domain,
permit_mynetworks
smtpd_recipient_restrictions = reject_non_fqdn_recipient,
reject_unknown_recipient_domain,
permit_mynetworks,
reject_unauth_destination,
reject_unlisted_recipient,
permit
smtpd_data_restrictions = reject_multi_recipient_bounce,
reject_unauth_pipelining
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