The catch-all account is automatically provisioned when the service is created. It is the fallback destination for any email that does not match a specific user in the system.

Once users and aliases have been defined their messages will be delivered to their individual mailboxes. The catch-all is helpful if you have forgotten to create an alias in the system. The downside to simply using a catchall for all of your mail is the intermingling of messages destined for multiple users.

The default catchall account is

When your account is created you will get an email with the subject: "Your Email Continuity account has been provisioned" and this will have your login credentials for the admin account.