Add a new Domain to SmarterMail 7.x
STEP 1: Log in to SmarterMail as the system administrator.
STEP 2: Click the Manage icon.
STEP 3: In the navigation pane, click New and select New Domain. This will load the new domain window in a popup, which is used to create the new SmarterMail domain.
STEP 4: Click the Options tab and configure all fields.
STEP 5: Click Save.
If you are unable to add a new domain into your SmarterMail, kindly submit a ticket to Support Team regarding this issue.