How to handle different RBL return codes

[bking]

Hi all,

Is there a way for zimbra to handle different RBL return codes? For example, a lookup on an IP to a RBL list might return

127.0.0.2. I want this blocked. Another IP returns 127.0.0.4, I dont want to block this return code.

Is there a way to achieve this?

Cheers,

B

[mmorse]

If you don't specify the return codes necessary, postfix will reject based on any return value right?
So it would just be:

zmprov mcf zimbraMtaRestriction "reject_rbl_client foo.bar.tld=127.0.0.2"

Before running that see what other checks you have enabled so you don't accidentally turn them off. Optionally you can use + to add one at a time.

zmprov gacf | grep zimbraMtaRestriction

So to skip .4 you might set something like this (on one line):

zmprov mcf zimbraMtaRestriction reject_invalid_hostname zimbraMtaRestriction reject_non_fqdn_hostname zimbraMtaRestriction reject_non_fqdn_sender zimbraMtaRestriction reject_unknown_sender_domain zimbraMtaRestriction "reject_rbl_client foo.bar.tld=127.0.0.1" zimbraMtaRestriction "reject_rbl_client foo.bar.tld=127.0.0.2" zimbraMtaRestriction "reject_rbl_client foo.bar.tld=127.0.0.3" zimbraMtaRestriction "reject_rbl_client foo.bar.tld=127.0.0.5"

Careful with reject_unknown_client & reject_unknown_hostname as they can block more than you think sometimes...

[bking]

Thanks Mike,

Exactly what I was after.

I know with exim I have used rbl.com=127.0.0.1,127.0.0.2

Do you know if zimbra will accept a comma separated list rather than listing each RBL multiple times to cater for the multiple return codes?

Cheers,

Brad

[mmorse]

I would think it had to have been implemented sometime; however I do not know what postfix version that might have fallen in...

I'll add this for you too - as I see this is only your 4th post
For more anti-spam methods:
Check out this post and below for things that are built into zcs /forums/administrators/11142-i-dont-think-rbls-bayes-working-me.html#post58026 (it kinda turned into a general article-I'll make sure everything's on the wiki sometime)
Then see this article for further ideas Improving Anti-spam system - ZimbraWiki