It is frustrating for users when Autoaddress presents addresses that are wrong. Verse needs an interface to allow people to easily remove suggested addresses that are incorrect or not required.
Instructions for Outlook - we need something similar
Remove a Name or Email Address from the Outlook Autocomplete List
Create a new email message.
In the To field, enter the name or address you want to remove. ...
Press the Down Arrow key to highlight the entry you want to delete from the list.
Select Delete (the X to the right of the contact name).