Re: origins of Bracketed Quad notation

[Bruno Wolff III]

On Mon, May 08, 2000 at 04:35:01PM -0500,
  "David L. Nicol" <[EMAIL PROTECTED]> wrote:
> 
> Can anyone point me to the IETF RFC describing e-mail addresses
> of the form david@[10.10.10.10]   Although web pages refer to
> this construction as a "821-compliant address" I found no discussion
> of referring to hosts by anything other than names within 821.

It should be there. That construct is called a domain literal.