How to delete Unhandled Email?

I have 1400 Unhandled EMails and I can’t delete them. Plus it link to my email account so I can’t delete my email account.

Same Problem, does anyone know how to solve this?

In the end I had to delete the records in the MySQl database by hand. Afterwards I was able to remove all E-Mail Accounts and reconfigure them. If anyone else wants to do this, the table name is 'tabUnhandled Email'.