On Wed, Oct 28, 2009 at 5:59 PM, Doug Otis <doug.mtview@gmail.com> wrote: > Mandating that DNS servers MUST provide TCP when the service can be carried > over UDP extended to conservative MTUs of 1280, or IMHO 1476, makes no > sense. In a world with 100% support for EDNS, maybe. But not all clients and servers support EDNS.