Martin,
phpList is not an exact duplicate of Majordomo/Mailman/Listserv. Here is an important difference, from the phpList website:
QUOTE
Posting to the mailinglist is via a webpage. It is therefore a one-way announcements system, directed from you to your audience.
My users, they are members of a church, they do not always have access to the Web. It is imperative that messages be able to be distributed by sending an email to an address, and this forwards to all subscribers.
I have spam-fighting safeguards in place; only list subscribers can send mail to the list. To date we have never had ANY spam on any of these lists.
Also, I must ask...how is a listserver related to "large amounts of incoming spam"? How will stopping the list server lead to reduction in spam? And why does Hostony still advertise "Majordomo with autoresponders" for their packages when this is evidently not available to me? Can this not be considered "downtime"?