When migrating from GoDaddy IMAP, you should specify the following:
1. For the project, specify the server name as imap.secureserver.net.
2. For each mailbox, enter the user's email address in both the Email Address field and the User Name field, then enter the user's password.
To verify the account is enabled for IMAP access:
- Log in to GoDaddy web mail.
- Click on Help.
- Click on Email Client Settings.
- Confirm that IMAP is enabled.
Also refer to this article: http://help.godaddy.com/article/4714.