The Major Major mailing list processor has been updated to version 2.0.
http://pmoylan.org/pages/os2/Major.html
"Major Major is a mailing list manager for OS/2. It lets you create multiple mailing lists on your machine. People subscribe to these lists by mailing a "subscribe" command to Major Major. (There is also an "unsubscribe" command.) You can also subscribe/unsubscribe people in your role as system manager.
It is open source software under the GNU GPL V3 license. "