==== Required information ====
- iRedMail version: 0.8.6
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: Ubuntu 12.04
- Related log if you're reporting an issue:
====

I need to block a certain sender or a certain IP address. I'm in Cluebringer webadmin now and I see  a lot of options. I don't want to continue and start editing options here as this is a production machine.
So any instruction on how to block a certain IP address or email address?
Also, is there a good resource on how I can read more documentation on how to use this cluebringer interface? I think this has a lot of potential over the control of inbound and outbound emails.

Thanks!