The End Users tab is where all end-user registration configuration is performed. Registration is the method of getting user credentials into your cloud service account.

For (2) and (3) above, you must enter the email domains where the users' email addresses reside into the account or policy. See Configure Domain settings for further information. For (1), users do not need an email address within your configured domains.

If you have chosen to use the identity management feature to synchronize your user and group data with the cloud as described in Working with External Directories, you do not need to register end users at all. You can synchronize your organization's users with the cloud service instead. When you synchronize, users are automatically registered with the cloud-based service. (They only need to self-register when they travel.)

Directory synchronization can include NTLM IDs. You can then enable NTLM identification on the Access Control tab. This allows your users to use the service immediately after synchronization, without their having to perform any self-registration actions or manual logon. If you enable NTLM identification but for some reason do not synchronize NTLM IDs from your directory, your users are required to complete the self-registration process, and then perform a second registration operation to associate their NTLM ID with their user account on the service. (See NTLM transparent identification for more information.)