27 May
2015
27 May
'15
6:48 p.m.
On Wed, May 27, 2015 at 3:41 PM, William Lewis <kg6baj(a)n1oes.org> wrote:
Where you say "Owners, please update them with a
proper hostname instead of
the literal IP address." I would like to point out that it is entirely
possible to have an IP address that has no HOSTNAME assigned to it at all.
The most common are used for mail. I use 2 that are setup this way for
security reasons.
MX records must point to a hostname. Here's a good description of why:
http://serverfault.com/a/663122
But the bottom line is: it's the spec.
Tom KD7LXL