We have an SBS 2008 server with exchange 2007 installed on it. We run a spamfilter in front of it. My problem is that whenever I use an invalid email address. firstname.lastname@example.org it gets accepted by the exchange even though the recipient filtering is enabled. The accepteddomain is mydomain and authoritative. I installed antispamagents-ps1 and restarted the services before that. I'm a bit new to this so if you could help me that would be really appreciated. Thanks.
RecipientValidationEnabled : True
Identity Enabled Priority -------- ------- -------- Transport Rule Agent True 1 Journaling Agent True 2 AD RMS Prelicensing Agent False 3 Catchall Agent True 4 Connection Filtering Agent True 5 Content Filter Agent True 6 Sender Id Agent True 7 Sender Filter Agent True 8 Recipient Filter Agent True 9 Protocol Analysis Agent True 10