SBS 2003 premium / Exchange 2003 The process inetinfo.exe is using 68% of CPU resources and has ground server to halt. I have gone thrugh the steps to make sure the server is not a Open Relay and it does not appear to be - but has the symptoms of an open relay. We have applied all the reqirements in Article ID : 324958 How to block open SMTP relaying and clean up Exchange Server SMTP queues in Windows Small Business Server Is there any other possibilities that it could be - ISA or something ?? Pat