administrator email account

Hi,

i have taken over a server 2k3 network which includes exchange 2003 server, after checking the exchange server for mailboxes and such i have noticed that the admin account has over 2 million emails.

I have tried setting up a computer and archiving off the emails but each time the machine just crashes.

The only other way i can think of dealing with this is deleting the mailbox and recreating again.

will this delete all the emails in that mailbox but most of all will this cause anyother issues on the system because its the domain admin mailbox?

Any advise would be great

Thanks