Lotus Notes and Auto unsubscribe

I recall reading somewhere in the archives that the auto unsubscribe feature does not work if the bouncing address is a Lotus Notes account. Is this true? And, if so, has anyone come up with a work around? Also, is it possible, or difficult, to get Smartlist to execute a predefined command, as opposed to the default action of removing an address from the distribution list, when an address starts bouncing? Thanks for any comments, Jeff Dilcher Atlanta, GA