Hello, I have two Exchange 2007 CAS server in my environment. On one of the CAS servers, I applied Update Rollup 3 (the server had previously had Update Rollup 1 on it). I completely reinstalled the other CAS server and applied Update Rollup 3 to it. What is strange is that the IMAP greeting is different on the two servers. The upgraded server reports: "* OK The Microsoft Exchange IMAP4 service is ready." The reinstalled server reports: "* OK Microsoft Exchange Server 2007 IMAP4 service ready" This difference caused one of my load balancer service monitors to mark one of the servers offline. I've double-checked that both servers are running with Update Rollup 3. I've tried restarting the IMAP service. I've also checked the version of the Microsoft.Exchange.Imap4.exe file, and it is the same on both servers. What could be causing this difference? Did something not get upgraded?

Would re-installing RU3 on both servers resolve this issue? Is this still an issue now that RU5 has been released?Mike Crowley: MCT, MCSE, MCTS, MCITP: Enterprise Administrator / Messaging Administrator