[fetchmail]selective delete from pop server

Fetchmail newbie here,
        I've configured fetchmail to grab 3 pop accounts succesfully.
Yeah me :)  Anyway, I want to leave the mail on the server (KEEP, easy
right?), but delete it after 5 days or so.  In M$ Outlook, Eudora and
others there is a feature that says something like "Leave mail on the
server for X days".  That's what I want to do.
        Does fetchmail support this selective deleting from a POP
account?

        -Mike Arrison