I used to use Gnus which is a newsreader at heart. Therefore the method to organize mail in folders ("groups" in Gnus-speak) was different from what I think I need with Mutt.
I'd like to get some ideas from you how you organize your mail. For reference, here is what I think the problem might be. I distribute incoming mail across several folders according to the address they were sent to -- I am subscribed to quite a number of mailing lists. For most mailing lists, I want to know which messages are still to do, and also to keep old messages that have already been processed. With Gnus, I marked the to-do messages as important ("flagged" them, in Mutt-speak, I think). After it was done, the message was marked as read. Gnus would automatically show me both new messages and important messages, hiding the ones marked as read. I think Mutt always shows me all messages, so this method cannot be used. tia, Kai