You can use the following command in root SSH to create an email account:
Above please replace email@example.com with the email account username and domain, password with the password for the email account being created, and quota# with the number for the quota in megabytes. For example, if you did the following:
/scripts/addpop firstname.lastname@example.org password quota#
This would create an email email@example.com with password p@nd@s and quota 100MB.
/scripts/addpop firstname.lastname@example.org p@nd@s 100