I recently followed the wiki advice located here...

http://wiki.zimbra.com/index.php?tit...On_or_Off_RBLs

Except instead of the listed RBL's, I just listed one, the Spamhaus Zen RBL which combines all their lists into one and is located at zen.spamhaus.org as follows...

Code:
zmprov mcf zimbraMtaRestriction reject_invalid_hostname zimbraMtaRestriction reject_non-
fqdn_hostname zimbraMtaRestriction reject_non_fqdn_sender zimbraMtaRestriction 
 “reject_rbl_client zen.spamhaus.org”
It did not give me any error messages and I rebooted the server. I expected to be given some indication in the admin interface that this was now active but I can't see anything different. Is there anything else I need to do to activate this RBL or is it now just silently working away?