In message <199503141802 .
net>, Eric Klien writes:
>I am working on changing the code of majordomo by hand to solve some
>major security problems with it. The problems that I have are that
>1) anyone can post to the list by sending e-mail to list-l-outgoing
>and 2) anyone can get a copy of the list by sending majordomo telnet
>client 25, expn listname-outgoing even if I disable the who command
The Majordomo FAQ goes into great length to tell you how to solve
this problem without any code changes.