On Wed, 2 Aug 1995 11:25:55 CDT David Young said:
>Is there any way to disable a list subscriber from setting the conceal
>option?  Would a list exit (defined via the Exit= keyword) help with
>this?
 
Yes, if you are running 1.8b, there is a SET_REQ entry point available to
your list exit which would allow you to do this.  Your exit would need to
examine the SET options being passed one at a time, and, if it encounters
a "CONCEAL", it could, say, change it to NOCONCEAL and return to LISTSERV
with a return code of 2.  The return code of 2 means a parameter has been
modified.
 
The exit could, of course, be nice and send mail back saying that CONCEAL
is not valid for the list, etc. though that is a little more work on your
part.
 
Bill Gruber
City University of New York Computer Center