I have an sbs 2003, with IMAP configured to be accessed and all my users can reach this service. only one user cannot. when i try to reach his mailbox Through IMAP i got popup windows who ask to feed user and password (like if the user or the password is wrong although it is not).
It doesn’t matter from wich computer i try to do it, i got the same result.
i even ad the user to the domain admin just for trying but it didn’t help.
i reset the password and change it, same.
I checked the Exchange Features in the user properies. everything is fine.
I don’t know where to check anymore so i turn to you all. HELP