Exchange mailbox Duplicate

Hi, I have deleted a user account by mistake, after recreating the account, i added a new mailbox for the account aswell, i am now sitting with 2 mailboxes displaying in my exchange systems manager, The original mailbox has all the mail and the newly created mailbox is now the default, how do i delete that mailbox and then make the original the default?
This is how the mailboxes are displayed in manager.
User 1 = Jackie Howes bibc_ct\jhowes
User2= Jackie Howes s-1-5-21-484763869-1383384898-1417001333-1129