Appended below is a question from one of my list owners. I have changed
the list names in her message, because both are private, internal-use-only
lists.

If I understand correctly, the list owner intends to enable the topics
feature on a superlist and its sublist, and believes she can prevent some
superlist messages from being distributed to sublist subscribers by using
a topic which is not defined on the sublist.

I suspect that she is mistaken, but I do not recall ever attempting to use
the Sub-Lists= and Topics= keywords in this manner. I doubt that topics
option settings on the sublist will have any effect on messages posted to
the superlist. I suspect that all messages posted to the superlist will be
distributed to all subscribers on the sublist, with the exception of those
who are subscribed to both lists and have superlist topics option settings
that exclude certain topics.

Will this work the way the list owner believes it will work? If not, is
there a way to configure a superlist/sublist pair so that only certain
messages posted to the superlist are distributed to the sublist subscribers?

> I'm getting ready to make some changes to LIST-1 momentarily (as soon 
> as Denise gives me owner rights to be able to do so) and I want to 
> verify my understandings with you.
> 
> We're getting ready to sub-lists = LIST-2 to LIST-1.  Therefore 
> LIST-1   will be the superlist. 
> 
> We're going to enable topics = (don't know what keywords we'll use yet) 
> to make certain LIST-1 topics private from LIST-2.
> 
> LIST-2 will not have topic enabled.
> 
> So,  for the sublist of the superlist which has topics enabled,  and 
> message posted to the superlist with out a topic will be distributed to 
> everyone both on the super and sublists... correct?
> 
> To exclude the sublist,  a topic of "private," for example, would only 
> distribute to those subscribed to the topic "private" on the 
> superlist... correct?
>

-- 
Paul Russell, Senior Systems Administrator
OIT Messaging Services Team
University of Notre Dame
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