Miscellany

strict_rfc821_envelopes = yes
transport_maps=hash:/etc/postfix/transport
smtpd_client_recipient_rate_limit = 500
smtpd_client_restrictions =
        reject_rbl_client sbl.spamhaus.org,
        reject_rbl_client relays.ordb.org,
        reject_rbl_client bl.spamcop.net,
        reject_rbl_client dun.dnsrbl.net,
        reject_unknown_client_hostname,
        reject_unknown_reverse_client_hostname,
        reject_unauth_pipelining,
        permit_mynetworks,
        permit
smtpd_delay_reject = yes
smtpd_helo_required = yes
smtpd_helo_restrictions = 
        permit_mynetworks,
        check_helo_access pcre:/etc/postfix/helo_access
        reject_non_fqdn_hostname,
        reject_invalid_hostname,
        permit
smtpd_sender_restrictions = 
        permit_mynetworks,
        check_sender_access pcre:/etc/postfix/sender_access
        reject_non_fqdn_sender,
        reject_unknown_sender_domain,
        permit
smtpd_recipient_restrictions =
        reject_unauth_pipelining,
        reject_non_fqdn_recipient,
        reject_unknown_recipient_domain,
        check_policy_service unix:private/spfpolicy,
        permit_mynetworks,
        reject_unauth_destination,
        reject_rbl_client sbl.spamhaus.org,
        reject_rbl_client relays.ordb.org,
        reject_rbl_client bl.spamcop.net,
        reject_rbl_client dun.dnsrbl.net,
        permit