We have an Exchange 2010 SP3 Server. I installed the exchange antispam agents on it and used zen.spamhaus.org as an ip block list Provider. Everything worked prefect.
Since about 3 days, we receive more spam emails than usually. I checked the agentlog, and there are no more "your IP has been found on a block list" entries.
I uninstalled the anti spam agents rebooted the server and reinstalled them and rebooted the server again, but I still have the same Problem.
Any suggestions?
Regards
Peter