[tvandyck7]

For a normal html account you can just tap (on the mail tab): menu/accounts/accounts then highlight the account you want gone with the kb arrows and then tap menu/delete.

I added a exchange account once that I couldn't figure out how to delete it.
When trying to delete an Exchange email account, the pop up Delete option will be greyed out. You have to Delete the parternship between your device and Activeysnc to remove Exchange accounts.
Try this: Start/Active Sync/Menu/Options/Microsoft Exchange/Menu/Delete