MEMOS is a complete electronic mail system that provides for sending messages (at the moment) to users on the same Theos system. We will be expanding it to work with the new TCP/IP stuff to be able to send messages anywhere as soon as possible.
Meanwhile, MEMOS allows sending a text message to a single user, or a group of users (mailing list). Messages can be sent certified, so a receipt is returned when the message is read. This thing is so cool that even WE use it.
Interested? We'll work out a trial deal like the one for TCOMM/FAX. In fact, since you *ought* to be trying a TCOMM/FAX anyway, we can probably send you a copy of MEMOS at the same time (hint, hint).