Hello, Are addres headers (To: CC: From:) resolved when a message is downloaded using Exchange 2007 IMAP, but not when downloaded using 2010 IMAP? This appears to be the behavior. It seems that IMAP in 2007 does P2 address resolution when a client downloads via IMAP but IMAP in 2010 does not. Thanks

Hi williamtholmes, Per my test in my lab (Exchange 2010 SP1 and Exchange 2007 SP3), the emails IMAP account received are using P2 address in address headers. If I misunderstand on you, please explain your problem in detail. Thanks, Evan Liu TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com

Hi wiliamtholmes, Any updates on this issue? Thanks, Evan Liu TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com