MX (for "Message Exchange") is a free mail system for VMS, designed to work
with VMS Mail.  Its architecture is that of a central "router" surrounded by
independent delivery agents -- one for UUCP, one for SMTP, one for DECNET,
etc.  One delivery agent you can choose to install is MLF, the "Mailing
List/File Server" package, giving you free MLM capabilities under VMS.  (MX
also includes hooks to LISTSERV, if you choose to use that system instead.)

MX runs on OpenVMS VAX (VAX/VMS) versions 5.0 and up, and on all versions of
OpenVMS AXP.  To act as an Internet MTA, MX requires prior installation of
one of several vendors' TCP/IP packages.

The mailing-list portion of MX/MLF is usually reached at the address MXSERV
or MXSERVER, but is also reachable at "listname-request."  It supports basic
user commands including subscribe, unsubscribe, review, help, and "query"
(i.e. "which lists am I on"), as well as a "set" command by which users can
control whether they are sent copies of their own postings and whether they
are listed in a review of subscribers.  The file server portion, usually
reached at the address FILESERV, supports directory and get commands as well
as an "address" directive to redirect output to another user.  From the
administrator's perspective, MX/MLF supports open and closed subscription,
reviewable and and private subscription lists, and open as well as
owner-moderated posting, all configured through the same interface used to
set up the rest of MX's functions.

Get MX at <ftp.spc.edu://pub/mx/>.  Its user discussion list is
MX-List@WKUVX1.BITNET; subscribe by sending "subscribe" in the body of a
message to MX-List-Request@WKUVX1.BITNET.