I am trying to block a couple of internet email addresses from sending anything into our exchange 5.5 server. I see the delivery restrictions tab for individual mailboxes, but is there one that I can use for the whole system? Also when I try to enter in the address all I get is the global address list. How can I add in a generic or internet email address? Do I need to add them to the global list as an internet email account? Thanks for your help!
