Interesting
As I just checked numerous Domain name registrars, including NetworkSolutions,
and non accept _ as a
domain name character.
Can you give an example of a domain name that has an underscore in it? (Not
that proof by example
is valid, just curious to test my DNS servers against it to see what happens.)
Terry Fielder
Manager Software Development and Deployment
Great Gulf Homes / Ashton Woods Homes
terry(_at_)greatgulfhomes(_dot_)com
Fax: (416) 441-9085
-----Original Message-----
From: Stephane Bortzmeyer [mailto:bortzmeyer(_at_)nic(_dot_)fr]
Sent: Friday, August 06, 2004 9:44 AM
To: terry(_at_)ashtonwoodshomes(_dot_)com
Cc: spf-discuss(_at_)v2(_dot_)listbox(_dot_)com
Subject: Re: DNS Wildcards Myth #1
On Fri, Aug 06, 2004 at 09:38:01AM -0400,
terry(_at_)ashtonwoodshomes(_dot_)com
<terry(_at_)ashtonwoodshomes(_dot_)com> wrote
a message of 73 lines which said:
You are correct,
No.
the underscore "_" is NOT a valid domain character. It can be used
as a host name
No, it is exactly the opposite (see the detailed references I gave.)
by dns servers that support it,
All of them accept the _ or they are broken. But applications (or
their libraries such as the Unix libc) expecting host names will
probably not accept it.