i'll describe the way i've set up the swil mailing list, on the theory that anyone who changes it can update this document, too. basically, there are two major sublists, curswil, which contains swilfolk who are current students or who live in the area, and allswil, which contains all students and alums who want to be on the mailing list. swilnews is basically the only thing that goes to allswil; all other announcements go to curswil (which is a subset of allswil). exceptions to this are reunion announcements, t-shirt ordering info, and anything else which would be of interest to non-local people.
i've set the swil list up as a pine addressbook called .address-swil. if there are multiple presidents, only one of them should keep the address list, since it needs to be updated frequently when people ask to be added or dropped. in pine, an addressbook is added by placing the file in your home directory, then specifying it as an addressbook in pine using the (s)etup and (a)ddressbooks options from the main menu.
the contents of .address-swil are the following folders:
this is my scheme, and i find that it works pretty well, but i'm also a packrat and swil loremistress, so i hate throwing out any information. if an e-mail address starts bouncing, send mail to the chit-chat list asking if anyone knows where the person can currently be found (or who the person is), and update the address if possible, or else just move it to swildefunct.
basically, the swil list is for swilnews and swil announcements that need special attention, such as movie voting, senior remembrances, t-shirts, inauguration, and so on. it's a fairly large list (about 120 people right now, i think), so i try not to send mail to the list too frequently.