With Tom and Lamont's help, we solved the configuration problems. We also needed to add lists.staging to staging's trustroots. I've confirmed that access on staging appears to work as expected and will follow up with details on the mailing list.
With Tom and Lamont's help, we solved the configuration problems. We also needed to add lists.staging to staging's trustroots. I've confirmed that access on staging appears to work as expected and will follow up with details on the mailing list.