I am running an Islamic message mailing list ( https://groups.yahoo.com/group/minjamal/messages ) using yahoo groups.
It is very easy to configure as per our needs.
Messages are distributed very fast.
Bounced messages are taken care automatically.
There are lots of options to make it work as per our wish.
Sending invitation is made very easy.
When you send an invitation, the member has an option to accept or not to accept and it prevents forged membership.
Members have all the liberty to quit. i.e., the can subscribe or unsubscribe at any time the want.
Thanks to YAHOO for providing this YAHOO GROUPS service FREE.
MINJAMAL MODERATOR.
https://groups.yahoo.com/group/minjamal