We use Google Apps as our email service provider.
I would like to prevent a user from sending or receiving any new mail, while preserving this person's access to the archive of historical messages.
We are not currently using Postini.
Sending: I can't find anything myself.
Receiving: Using Email Delivery, I see that I can turn off all email delivery options so that no messages will be delivered. It seems, though, that this would fail silently, and I'd prefer to have an auto-responder up or to have the sender get a Not Deliverable notification.
Is there a way to do this?