If you have enabled the Auto User Creation option for your domain, Vaultastic will automatically create Vaultastic accounts for users. User creation is triggered when a mail sent or received by a user on the primary domain reaches the Vaultastic servers.
The Vaultastic Automatic User Creation report gives you the total number of users provisioned automatically on your Vaultastic domain. The details of the users created is available in a CSV attached to the mail.
You can subscribe to receive the active users report in your mailbox.