SRS: So your ms was Unsolicited to MMario but a legitimate Reply to me. That's a whole different problem.....nevermind.

You've taken a brave and useful approach with your Lists. Actually, neither I nor (likely) MichaelM's friend (hearinafter referred to as "Toronto" or "Tor") actually needs a List in the usual sense. The communication is one-way. Only I need to post to the List. This can be easily set up at Yahoo for small lists (< 100 addresses??????).

The Friend-at-a-University wouldn't really have to do much work. There would be only the single monthly post. My recommendation to use a listserver is because List software is set up to do this stuff.

Tor would still have to solve the spam problem but sending would be much easier. Further, Un/Subscription can be automated.