Postfix Overview - Introduction - SCN Research
Postfix Overview - Introduction - SCN Research
Postfix Overview - Introduction - SCN Research
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<strong>Postfix</strong> Configuration - UCE Controls<br />
address contains no sender-specified routing (user@elsewhere@domain),<br />
• <strong>Postfix</strong> is the final destination: any destination that matches $mydestination, $inet_interfaces<br />
or $virtual_maps.<br />
Otherwise proceed with the next restriction.<br />
reject_unauth_destination<br />
Ignore the client hostname. Reject the request unless one of the following is true:<br />
• the resolved destination address matches $relay_domains or a subdomain thereof, and the<br />
address contains no sender-specified routing (user@elsewhere@domain),<br />
• <strong>Postfix</strong> is the final destination: any destination that matches $mydestination, $inet_interfaces<br />
or $virtual_maps.<br />
The relay_domains_reject_code parameter specifies the response code for rejected requests<br />
(default: 554).<br />
permit_mx_backup<br />
Permit the request when the local mail system is MX host for the resolved destination. This<br />
includes the case that the local mail system is the final destination. However, the SMTP server will<br />
not forward mail with addresses that have sender-specified routing information (example:<br />
user@elsewhere@domain),<br />
Relevant configuration parameters: $mydestination, $inet_interfaces.<br />
check_recipient_access maptype:mapname<br />
maptype:mapname<br />
Search the named access database for the resolved destination address, parent domain, or<br />
localpart@. Reject the request if the result is REJECT or "[45]XX text". Permit the request if the<br />
result is OK or RELAY or all-numerical. Otherwise, treat the result as another list of UCE<br />
restrictions. The access_map_reject_code parameter specifies the result code for rejected requests<br />
(default: 554).<br />
reject_unknown_recipient_domain<br />
Reject the request when the recipient mail address has no DNS A or MX record. The<br />
unknown_address_reject_code parameter specifies the response code for rejected requests<br />
(default: 450). The response is always 450 in case of a temporary DNS error.<br />
reject_non_fqdn_recipient<br />
Reject the request when the address in the client RCPT TO command is not in fully-qualified<br />
domain form. The non_fqdn_reject_code specifies the response code to rejected requests (default:<br />
504).<br />
reject_unknown_sender_domain<br />
reject_non_fqdn_sender<br />
check_sender_access maptype:mapname<br />
See sender address restrictions.<br />
permit_naked_ip_address<br />
reject_invalid_hostname<br />
reject_unknown_hostname<br />
reject_non_fqdn_hostname<br />
check_helo_access maptype:mapname<br />
See HELO (EHLO) hostname restrictions.<br />
reject_maps_rbl<br />
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http://www.porcupine.org/postfix-mirror/uce.html<br />
6/26/01
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