Mail cannot be moved… Solution

Switched to the new iOS releases and / or using an iPad and getting this nice little alert box when trying to delete a mail?
Well – here’s the simple solution:
1. Go to the ‘settings’ app on your device
2. Open the ‘Mail, Contacts, Calendars’ tab
3. Select the account in the list which has this issue
4. Open the ‘Advanced’ tab
5. Open the ‘Deleted Mailbox’
6. Select ‘Trash’ in the section ‘On My xxx’ where ‘xxx’ stands for your device
Yes I know that this is already preselected – but it has to be selected manually so that it’s recognized.
After this you shouldn’t see the alert box again 🙂