At 08:56 09/09/2003 Tuesday, Winship wrote: >On Tue, 9 Sep 2003, Jack Schmidt wrote: >> Hi! Is it possible to prevent members of a list from setting the mail header >> type? > >Not that I know of. They are able to change the header to set what works >best with *their* systems. Why does the listowner want "one size fits >all"? Good Question. I don't know if this will answer the original question though i.e., I haven't tried it (and there may be a difference in processing among LISTSERV releases): have a sub-list where the subscriber is joined, but mail to a "super" list (with the desired options) that references the sub-list /Pete