Mac Server User Password issues

[cwh987]

We had a new client called and said they can't access their email on one workstation using Apple Mail.
They have a IMac workstation running Yosemite and a Mac mini (Server) with 16 GB running Yosemite 10.10.3 with Server version 4.1. Also, they have their own domain and the Mail (exchange) hosted on the Mac Server.

The secretary went and changed the password for the user on the server because they were having email issues. Now, the Mail app on the workstation keeps asking for a password. We can log in with the new password with no problems. Everything is working except the email. We have restarted both computers and changed the password several times with no luck.

Anybody have any suggestions?

 

[Markverhyden]

First place they cannot have Exchange running on OS X, I think Apple still uses postfix. They can have Outlook as the client and setup with IMAP accounts. Have you enabled webmail and tried accessing the account that way? Are they running OD on the server? Have you looked at the logs on the Server when they are trying to access the email? Did you check the user's access to services?