Hi, I am using Nokia N900 and using mail for exchange for syncing with my corporate mail and i am using it for almost last 2 year. Now suddenly it stopped working and showing message that "Invalid host address for exchange server" and i verified the server name and is correct. I deleted the account and tried to reconfigure, but nothing happened. After that i re-flashed my N900 and still same issue. It will be very helpful if somebody can help me on this. Thanks & Regards Rajesh R.