Disable email for Main Account

[GoWilkes]

Is there a way to completely disable email for the main account? Meaning, when I create an account under WHM, it automatically creates an email account for that username, but none of my clients want to use it (preferring to come up with something more convenient) so it's a waste of space.

TIA,

Jason

[Infopro]

How much space is wasted?

That main account is part of the system.