If I had to guess, I'd guess the part that's in the signature for each post:
~~~~~
* To join/leave the list, search archives, change list settings, *
* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *
~~~~~
When I visit that link, I see "Subscribe or Unsubscribe" in the right-hand nav. :)
--Glenn
* To join/leave the list, search archives, change list settings, *
* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *