keeping emails after move - already aware of verizon your domain

We will be moving to an area and as of right now, it doesn't appear to have Verizon.  We want to keep our email addresses.  We've gone the direction of using verizon your domain so the main email on the account can be retained.  What I didn't see anywhere and can't seem to figure out is does this keep only THAT email address or the emails of the subaccounts as well?  I know an email I received says when canceling to let a representative know we wish to retained Broadband Essentials and Extras, but not sure if that includes subaccounts.  Thanks in advance!