Ah, ok clear..
how does dns handle email addresses like firstname.lastname@example.org
justin.albstmeijer.domain.com could be interpreted as email@example.com
seems somewhat confusing for users..
Wouldn't it be better to default to postmaster.domain.com and give a warning within the email management tab that there needs to be a forward for firstname.lastname@example.org
as long as it does not exist?