If there isn’t a limit in the mailman, it would work for me.
It is fair that mailman (as I am currently using) will inform subscriber that they had been ported over to a new mailing list, and they will receive instructions how they can opt out, handled by mailman automatically.
We are not very frequently mailing, even at peak of campaign we won’t have more than 1 mail every 3 days.
My question now is, can I be transferred to pay 24 months rate later, after I sign up a month to month payment, just to test for the 1st month. And then I things are OK, can I then convert from the 2nd month onwards to a 24month payment.