Yo, "Spam Stopper," before posting such rubbish, check your self-righteousness and look at the product.
Macjordomo is a FREE Macintosh implementation of an internet standard majordomo listserver.
Macjordomo is for setting up subscriber lists, broadcast lists and other standard listserve functions.
Michele Fuortes has provided this package for free to the Mac community since some time in the middle-1980s. He's a good guy and doesn't deserve to be trashed by you.
It is not a spam engine, though any majordomo package can be used for ill purposes. (The same as anybody's email mail address book.)
Read the documentation first. You'll find that there are plenty of controls to keep those of ill intent from abusing a Macjordomo server.
I use it to serve a list of THOUSANDS of subscribers with news headlines and updates.