Q. When I try to verify my connection to POP3 server, I'm getting an error:
"Connection to POP3 server was not established: Command "USER ADTasks@domain.com" failed : -ERR Command is not valid in this state.."
I'm using MS Exchange 2007.
A. Open your Exchange Shell and enter:
Set-PopSettings -LoginType PlainTextLogin
Then restart the POP3 service.