| Line 13: | Line 13: | ||
reject_unauth_destination | reject_unauth_destination | ||
reject_unlisted_recipient | reject_unlisted_recipient | ||
| − | check_client_access pcre:/etc/postfix/ | + | check_client_access pcre:/etc/postfix/spam-filter.cf |
<br> | <br> | ||
''NOTE:'' '''''[http://www.postfix.org/postconf.5.html#smtpd_reject_unlisted_recipient reject_unlisted_recipient]''''' ''is the best thing since sliced bread!''<br> | ''NOTE:'' '''''[http://www.postfix.org/postconf.5.html#smtpd_reject_unlisted_recipient reject_unlisted_recipient]''''' ''is the best thing since sliced bread!''<br> | ||
It will reject mail where the recipient domain is listed in Virtual_Mailbox_Domains but the recipient is not listed in Virtual_Mailbox_Maps. You would think this goes without saying, but this isn't the default behavior. When in doubt add this line! | It will reject mail where the recipient domain is listed in Virtual_Mailbox_Domains but the recipient is not listed in Virtual_Mailbox_Maps. You would think this goes without saying, but this isn't the default behavior. When in doubt add this line! | ||
| + | |||
| + | |||
| + | In the example [http://www.postfix.org/postconf.5.html#check_client_access check_client_access] call the file spam-filter.cf | ||
| + | This is an example of what I call message routing (Not sure if this is really whats its called :) ). Basically any message that hasn't been accepted or rejected by the precious checks is then handled by check_client_access. This PCRE file contains | ||
| + | |||
| + | /./ FILTER lmtp:unix:/spamfilter.sock | ||
| + | |||
| + | /./ is a wildcard that will catch every message and in this case send it to spamfilter.sock | ||
| + | |||
| + | The result is that messages that are NOT sent from "mynetworks", are NOT "sasl_authenticated", have a "authorized destination", and have a "listed recipient" are then '''routed''' to the spam filter. | ||
| + | |||
| + | |||
| + | |||
[[Category:Postfix]] | [[Category:Postfix]] | ||
Revision as of 21:15, 16 August 2006
These restrictions are useful for accepting, rejecting and even routing messages.
Reference: smtpd_recipient_restrictions in the postfix documentation
Example:
smtpd_sasl_auth_enable = yes
broken_sasl_auth_clients = yes
smtpd_sasl_security_options = noanonymous
smtpd_recipient_restrictions =
permit_mynetworks
permit_sasl_authenticated
reject_unauth_destination
reject_unlisted_recipient
check_client_access pcre:/etc/postfix/spam-filter.cf
NOTE: reject_unlisted_recipient is the best thing since sliced bread!
It will reject mail where the recipient domain is listed in Virtual_Mailbox_Domains but the recipient is not listed in Virtual_Mailbox_Maps. You would think this goes without saying, but this isn't the default behavior. When in doubt add this line!
In the example check_client_access call the file spam-filter.cf
This is an example of what I call message routing (Not sure if this is really whats its called :) ). Basically any message that hasn't been accepted or rejected by the precious checks is then handled by check_client_access. This PCRE file contains
/./ FILTER lmtp:unix:/spamfilter.sock
/./ is a wildcard that will catch every message and in this case send it to spamfilter.sock
The result is that messages that are NOT sent from "mynetworks", are NOT "sasl_authenticated", have a "authorized destination", and have a "listed recipient" are then routed to the spam filter.