Restricting list subscriptions

["Glenn A. Laguna" <galagun @ isrc . sandia . gov>]

Hi,

Is there any way that subscriptions to a list can be restricted to a certain
domain, without making the list closed? For example, is there an automatic way
to restrict a list so that only people from isrc.sandia.gov could subscribe to
it?

Thanks,
Glenn Laguna
<galagun@isrc.sandia.gov>