It appears that Spencer Dawkins at IETF <spencerdawkins.ietf@xxxxxxxxx> said: >We might be able to pull this off, going forward, but we're doing AUTH48 on >drafts in the 9040 range now. I'd bet that there are a *lot *of past >authors who aren't reachable at an email address that the RFC Editor knows >about for a variety of reasons No kidding. Every month I mail a survey to authors and document shepherds of RFCs published the previous month. The author addreses are taken from the XML, the shepherds from the Datatracker. Every month a few of the messages bounce because the addresses are bad, even though they presumably worked less than a month ago. I suppose we could try and keep a voluntary address change database, perhaps starting with the collecion of addresses in the datatracker but I have little confidence it would be updated reliably enough to be useful.