I am trying to create archive folders in 'local' on Thunderbird. (Not on my actual email provider account page ). I am trying to create a folder for each email account. When I try to do this emails from one email account appear in the folder for the other account. I have tried over and over different methods to set up the folders in local but non seems to work? Is there some kind of bug with Thunderbird? I have seen many people have had problems with this in many forums?