This method applies to SmarterMail Enterprise 8.x - 12.x:

Follow these steps to import new users using LDAP:

Log into SmarterMail as the domain administrator.

Click the Settings icon.

Expand Domain Settings and Advanced Settings folders in the navigation pane.

Click Import LDAP Users.

Input the location of your active directory users via the LDAP binding string (eg. LDAP://domain.com/CN=Users,DC=domain,DC=com). An example LDAP string might look like this: LDAP://testdomain.local/CN=Users,DC=testdomain,DC=local

Click List Users.

Select the users you wish to import into the domain. NOTE: If the users already exist in SmarterMail they will not show up in the list.

Click Import Users in the content pane toolbar.