On Thu, 3 Oct 2002 15:17:57 +0100 Colin Watson <cjwatson@debian.org> wrote: > I would advise filtering on the X-Mailing-List: header, not To: or Cc:, > if the latter is what you're doing. This should be reliable. Thanks, but there wasn't such a header in the message. No reference to the list at all, yet at the bottom of the message there was the usual To UNSUBSCRIBE etc. It's obviously a one-off and not a basic change. A bit odd. - Richard.