著者: Exim Mailing List 日付: To: Exim Mailing List 題目: Re: [exim] mx selection (possibly off topic)
On Thu, Aug 18, 2005 at 02:33:08PM +0100, Philip Hazel wrote:
<snip> > Note that, as a result of pressure long ago from a certain multinational
> company whose name starts with the digit 3, components of domain names
> are permitted start with digits. Thus, an IPv4 address is a
> syntactically valid domain name. A nameserver cannot therefore object to
> being told to load a record such as
>
> xxx MX 1 1.2.3.4
>
> because, syntactically, "1.2.3.4" *could* be a domain name. Sigh.
>
Now that would be confusing.
Steven.
--
There has been an alarming increase in the number of things you know
nothing about.