I'm relieved to find that this actually does seem to be confusing to lots of people other than me (I'd thought it was just me being dense). Here's my understanding of this: Private list, no problem. Only subscribers can see anything. Public list, anybody can look at messages, but all email addresses are masked (thus, no harvesting). If you want to see the addresses you need to acquire a password. My understanding was that you need to be a subscriber to do this, but I was apparently wrong: really it makes no practical difference; the main issue is that the addresses don't sit on the open Web, ripe for harvesting. Thanks to everybody who helped me with this. -- Russ St. Thomas University http://www.StThomasU.ca/~hunt/