On Thu, 04 May 2000 17:54:44 CDT, Adam Bailey <[log in to unmask]> said: > Well, I can specifically reiterate my long-standing request for > header-based filtering capabilities in LISTSERV... :) Sendmail can do this for you already. http://www.sendmail.com/blockmelissa.html The concept is, of course, extensible to other than the Subject: tag, and there's a whole section in the Sendmail 8.10.1 'cf/README' file labelled 'Header Checks' (down around line 1900). Valdis Kletnieks Operating Systems Analyst Virginia Tech