Scan all folders for unseen messages

[aalinovi]

It has taken the better part of 2 days for a non-technical person such
as I to get getmail, procmail and nmh all working together.

Is there any way to scan all folders at once to determine which have new
unseen messages or am I reduced to going into each folder individually
in which case I may scrap procmail and just have everything go into
inbox?

Thank you