I have a sonic wall tz190. I have created an access rule that deny's any lan to wan on port 25 except for my exchange server. Actually it is 2 rules (my server is at 10.0.0.51) one that block 1-50 and one that blocks 52-254. This should do it right? There is a rule that allows any to any though. And it is enabled. Does this overwrite the deny or do deny rules take priority, like in Windows. If it is setup how can I test it?