Hello Paul, and welcome to Seven Forums.
For the best results, it best to only copy the imported emails into your email account's folders and not the imported folders.
Is there a way of setting what will be displayed for each folder like there is in almost every other email program I've ever used?
Do you mean messaged rules? If so, then you can click on Tools
(Alt+M), Message Rules
, and Mail
to create rules for how messages are filtered to your inbox folders.
Hope this helps,