On: Fri, Jul 06, 2007 at 01:50:23PM -0500,Young, David Wrote:

} Hi all,
} I've been asked to periodically update a newsletter mailing list with
} subscribers from a mandatory employees mailing list but allow said
} subscribers to opt out of the newsletter list. Except for the opt-out
} part, I was going to use the mandatory list as a sub-list for the
} newsletter. Has anyone encountered a situation like this and do you have
} any suggestions? My quick and dirty approach will probably be to scan
} the changelog file after the list has been updated and issue the
} necessary add or delete commands accordingly but that seems to be a
} major headache. Any ideas would be appreciated. Thanks.

You could probably do it with topics.  Just have one topic, "NEWSLETTER"
with the default topic being all and the op-out people being set to

   set listname-l topics: all -newsletter for userid@host

See section 6.7 in the listowners manual.

--
Rich Greenberg  N Ft Myers, FL, USA richgr atsign panix.com  + 1 239 543 1353
Eastern time.  N6LRT  I speak for myself & my dogs only.    VM'er since CP-67
Canines:Val, Red, Shasta & Casey (RIP), Red & Zero, Siberians  Owner:Chinook-L
Retired at the beach                                     Asst Owner:Sibernet-L