Exchange randomly rejecting IMAP authentication
Posted on 2008-10-20
Our exchange server has developed an issue in recent weeks where it will randomly kick back a prompt that the entered password is incorrect. This is happening both with computers on the local network, and remote access. No configuration changes have been made to the server, and the server is functioning as most of the time just re-entering the password allows it to authenticate and retrieve mail.
I am wondering if there is some kind of time-out setting in Exchange that might be returning an incorect password message too quickly. I have been monitoring the server and the system load, both CPU and network wise, is pretty minimal. The password request comes up at random intervals, sometimes 15 minutes apart, sometimes a couple hours. Nothing obvious is jumping out at me as to what might be the cause.