In this case, I think you may be best served by filtering mail destined 
for [log in to unmask] before it gets passed to the listserv application.

-Chris

Michael Murray wrote:
> I apologize for being unclear.
>
> Right now I have subscribers that can issue commands to the list by emailing
> [log in to unmask] They post messages to [log in to unmask] For
> example, if a subscriber wants to change their format to digest they send  a
> SET LISTNAME DIGEST command. If they want to get a list of available archive
> files they send an "INDEX LISTNAME" command. And so on.
>
> I want to remove the ability of subscribers to issue commands to the list
> server. Once this is done, they should be able to do two things: 1. post
> messages 2. receive messages.
>
> Thanks,
> -Mike
>
> -----Original Message-----
> From: LISTSERV site administrators' forum
> [mailto:[log in to unmask]] On Behalf Of Kevin Parris
> Sent: Thursday, March 15, 2007 3:08 PM
> To: [log in to unmask]
> Subject: Re: Prevent commands from subscribers
>
> What you actually wish to achieve is not entirely clear.  You may get
> more useful responses if you elaborate on the problem you are
> experiencing.
>
> For example, are messages that SHOULD have been sent to the "command
> interface" (such as subscribe or signoff) being distributed to the list
> population?  Or do you wish to block the processing of such commands?
>
>   
>>>> [log in to unmask] 3/15/2007 1:10:28 PM >>>
>>>>         
> Hello,
>  
> Is there a way I can prevent subscribers from issuing commands to the
> list altogether? I simply want subscribers to be able to post messages
> and nothing else. Is that possible?
>  
> Thanks,
> -Mike
>   

-- 
Christopher Wilson
Information Systems Coordinator
ISS Enterprise Systems
The George Washington University
202-994-3878
[log in to unmask]