On Oct 17, 2010, at 7:16 PM, James Hess wrote:
On Sat, Oct 16, 2010 at 11:46 PM, Day Domes <daydomes@gmail.com> wrote:
I have been tasked with coming up with a new name for are transit data network. I am thinking of using 101100010100110.net does anyone see any issues with this?
The domain-name starts with a digit, which is not really recommended, RFC 1034, due to the fact a valid actual hostname cannot start with a digit,
A valid actual hostname can start with a digit. Many do. I'm guessing 3com may have had something to do with that trend. RFC 1123 2.1 clarified that a couple of decades ago, so I doubt you'll find any running software that doesn't agree.
and, for example, some MTAs/MUAs, that comply with earlier versions of standards still in use, will possibly have a problem sending e-mail to the flat domain, even if the actual hostname is something legal such as mail.101100010100110.net.
Which goes back to one of the standard-provided definitions of domain name syntax used by RFC 821 page 29:
There are several less obsolete RFCs that specify email addresses, they're all quite specific about what a valid hostname is in an email sense. 5321 is the latest, I think, section 4.1.2. Cheers, Steve