Comment 1 for bug 266093

You observation is incorrect because the description is about the use of
the field NOT the alias and it is NOT said that the alias specified is
used
for no other purpose. The -owner alias is defined on all lists and has
other uses.

The use of the -owner alias for other purposes is not directly related to

its use as a target for certain types of message when the list is marked
as being an umbrella list. If you do not want the -owner alias used this
way when the list is an umbrella list you can define an alternative alias,

-stuff for example, setting the field on the GUI accordingly. You can then

specify what the incoming MTA is to do with messages addressed to the
-stuff alias in whatever way you want (> /dev/null for instance)