Several of these samples require that you specify a Microsoft Exchange server name and a mailbox name. Use your assigned mailbox name (for example, "johnd") instead of your full name ("John Doe") for the mailbox name.
Also, you will often be presented with an Authentication dialog box, which requires valid credentials for the mailbox you are trying to access. Enter your Windows NT account name, using a backslash, as <Windows NT domain>\<user account name>. For example, if your domain name is southwest and your Windows NT account name is johnd, enter southwest\johnd.