Addressing from an Internet email address to a Communication Manager Messaging mailbox

How does an Internet email user address messages to my Communication Manager Messaging mailbox?

The email address for your Communication Manager Messaging mailbox is:

extension@[host.domain]

[ or firstname.lastname@[host.domain] ]

[ or the email address administered on the subscriber's form ]

"extension" is your [3 to 10]-digit extension number. [host.domain] is the Internet address of your Communication Manager Messaging server. When you send email from the Communication Manager Messaging system, the system default of first.last@host.docmain is used as your return address.

[Two other schemes are available. You can use your first name, a period, your last name, then @[host.domain]. Or, you can use the character "+", then your full phone number using "." or "-" separators, then @[host.domain]. However, the "extension@" form is the primary address for your mailbox.]