Credentials settings
Credentials identify you to the Microsoft Exchange server and provide privacy.
To check your Credentials settings, select the Credentials tab in your Profile.
The following options are available:
Username: This information is needed to use Mail for Exchange. To get your username, contact your system administrator or e-mail account provider.
Password: This is the password you use to access your e-mail account (typically the same as your login password). When you enter a password, each letter appears as an asterisk. You will have to enter a password before you can synchronise.
Domain: Contact your system administrator or e-mail account provider for the domain name. This setting is optional.