Aug 092011
I was rewrote Omar Kilani’s memcache patch couple of weeks ago. But that was not tested due to lack of time and unavailability of servers that can be used.
Now, i got chance to implement simple test. This is my configuration:
main.cf
smtpd_recipient_restrictions = ... ... check_recipient_access memcache:/etc/postfix/memcache.cf, ... ...
memcache.cf
servers = localhost:11211 key_format = %s
Entry on memcache
spam@example.com REJECT not allowed
Query using postmap
$ postmap -q "spam@example.com" memcache:/etc/postfix/memcache.cf postmap: dict_memcache_lookup: using key_format '%s' postmap: plmemcache_get: fetching key spam@example.com from memcache postmap: plmemcache_get: key spam@example.com => REJECT not allowed postmap: dict_memcache_lookup: spam@example.com returned REJECT not allowed REJECT not allowed
A little bit too verbose i guess, but it can be adjusted by modifying source code.
Here’s non-verbose version postfix-memcache patch [download#42]
Test it on the fly:
220 mx.example.com ESMTP Postfix (2.9-20110706) ehlo othermx.example.com 250-mx.example.com 250-PIPELINING 250-SIZE 52428800 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN mail from:<foo@example.com> 250 2.1.0 Ok rcpt to:<spam@example.com> 554 5.7.1 <spam@example.com>: Recipient address rejected: not allowed quit 221 2.0.0 Bye Connection closed by foreign host.
Logs:
Aug 9 09:49:59 fire postfix/smtpd[7860]: connect from unknown[xxx.xxx.xx.xxx] Aug 9 09:50:34 fire postfix/smtpd[7860]: dict_memcache_lookup: using key_format '%s' Aug 9 09:50:34 fire postfix/smtpd[7860]: plmemcache_get: fetching key spam@example.com from memcache Aug 9 09:50:34 fire postfix/smtpd[7860]: plmemcache_get: key spam@example.com => REJECT not allowed Aug 9 09:50:34 fire postfix/smtpd[7860]: dict_memcache_lookup: spam@example.com returned REJECT not allowed Aug 9 09:50:34 fire postfix/smtpd[7860]: NOQUEUE: reject: RCPT from unknown[xxx.xxx.xx.xx] 554 5.7.1 <spam@example.com>: Recipient address rejected: not allowed; from=<foo@example.com> to=<spam@example.com> proto=ESMTP helo=<othermx.example.com> Aug 9 09:50:37 fire postfix/smtpd[7860]: disconnect from unknown[xxx.xxx.xx.xx]
This is only a preliminary test, i’ve found bug that causing segmentation fault in memcache config file (need some fixes), but overall everything worked fine.