Tim wrote,
| ... I am not aware of any mailing list package which requires
| confirmation from the subscriber even when the list manager initiated the
| subscribe request.
On ONElist and on eGroups (and I'd be surprised if the situation is different
on other major web-based listhosts), a listowner has two add commands: one
sends people confirmation requests to which they must respond in order to be
subscribed, and one forcibly adds them but tells them how to unsub.
Part of the irony in the system is the reply addresses. Any message to the
confirmation request's reply address will confirm you, so people who write
back "Hell no! I want no part of this!" get fully subscribed; but the reply
address of the notice that you've been direct-added is the -unsubscribe
address [I think a preconfirmed version on eGroups], so people who write
back, "Thanks for adding me. I look forward to enjoying the list," get
taken off.
On Coollist there have been incidents of listowners who forcibly subscribe
people and then, if they unsub themselves, forcibly resubscribe them, and
unlike eGroups and ONElist, Coollist management has been totally unrespon-
sive about the problem.