A folder collection is a folder specification for a collection
    of folders on one system. For example, it can be all of your
    VMS MAIL folders which have the name prefix INFO-, or it can be
    all of your UNIX mail folders on a system called foo.bar.com, or
    it can be all of your VMS MAIL folders in a different mail file
    than you normally use. You can access multiple different folder
    collections from within Pine.

    By default, PMDF Pine knows only about the local folder
    collection, corresponding to your VMS MAIL mailbox. The use
    of additional folder collections is controlled by the FOLDER-
    COLLECTIONS option in your Pine resource file. Normally, this
    option is set from within Pine by using the SETUP menu and then
    selecting the L (collectionList) menu. However, the option can
    also be set by manually editing your Pine resource file.