Users

There're two main types of users depending on domain type they belong to: internal and external. Mailing list is a kind of internal user. Each type has its own set of settings.

Internal users can be created in internal domains only. Your AfterLogic XMail Server installation fully handles mail for such accounts.

External users can be created in external domains (hosted by an external mail server). External users are created in WebMail Pro only, mail is handled by an external mail server. If you don't use WebMail Pro, creating such users makes no sense.

Mailing lists can be created in internal domains only. It is a special kind of internal user account (a certain e-mail address). If you send a message to such address, the message will be sent to all e-mail addresses specified in mailing list settings.