I am trying to close down our e5.5 sp4 server so that it only relays for internal ip addresses. I have found the procedure which refers to Configuration, Connections, Internet Mail Service, then Routing - I want to enter ''Hosts and Clients with tese IP addresses'' but the Routing Restricions button is grayed out. Can anyone help? I do "reroute incoming mail for domains radio button checked and have entered our two domains. Thanks in advance for any help. Bob Hoagland Director of Technology St. Andrew's-Sewanee School 290 Quintard Road, Sewanee, TN 37375-3000 Phone: 931-968-0210 x 3127 bhoagland@xxxxxxxxxx