On Mon, 11 Mar 1996 19:04:43 +0800 Sue Sturcke sfo said: >Try inserting a line into you header as follows: > >*CONCEAL= No Nope. That won't work. The only way to keep someone from setting the CONCEAL option is for the LISTSERV maintainer on your site to install a list exit program that rejects the SET listname CONCEAL command with an appropriate message back to the person trying to set it. There is no list header keyword to disable this. For more information on list exits, the LISTSERV maintainer is referred to the LISTSERV release notes for versions 1.8a and 1.8b. One thing you <can> do is to remove the section of the $SIGNUP template in DEFAULT MAILTPL that refers to how to set the CONCEAL option. While that won't stop LISTSERV-savvy people from setting CONCEAL, at least it doesn't advertise the option when people subscribe. Another thing you can do is simply make it clear that CONCEALed subscriptions aren't allowed, and then periodically send a SET listname NOCONCEAL FOR *@* command to reset anyone who sets it. I'll leave the legal issues to the lawyers. :) Nathan