Re: Underscores in host names

[Mark Andrews <Mark_Andrews () isc org>]

In article <1226.24.5.40.13.1116478035.davidu () everydns net> you write:
> <quote who="william(at)elan.net">
>
> > Since changing SMTP2821 and waiting until everyone complies and accepts
> > email addresses with no "." is not an option, the solutions proposed are
> > to either have address like "postmaster@.tv" or "postmaster@tv."
> >
> > The only reason it has not been discussed more actively is that no TLD
> > operator has yet come forward and said that they are going to use
> > TLD host for emails, but as soon as one does this would have to be
> > accommodated and quickly (otherwise it will remain as an open issue for
> > future update to SMTP - probably RFC4821 if this numbering continues :)
>
> .ws has an MX record.
> host -t mx ws. ==> mail.worldsite.ws
>
> Most MUA's (unix ones tended to work, not surprisingly) complain or break
> on "send" but technically it works. :)
>
> Thanks,
> David Ulevitch
>
> ----------------------------------------------------
>   David A. Ulevitch - Founder, EveryDNS.Net
>   http://david.ulevitch.com -- http://everydns.net
> ----------------------------------------------------

        Any tld that thinks this will ever work reliably need their
        heads read.  There was a good reason all the unqualified
        hosts got moved into .ARPA.  Single label hosts do not work
        well on a global scale.

        Mark