Re: sender allowed to post but not in recipient list

" ... Is is possible for a list be modified to allow "[email protected]" to 
send to the list but not be on the list of recipients, or be returned if a 
"Who" command is done on the list? ..."

In your Majordomo lists directory, add a file (or create a list) called 
"posters" (or call it whatever you'd like).

Put [email protected] in that file.

In your config file for the list to which you want [email protected] to be 
able to post, add "posters" (or whatever you've named it) to the 
"restrict_post" variable.

-- Dean