Are hostnames immediately under the TLD allowed?
Technically it works, I use a name like xxxx.xx, not host.xxxx.xx
And yes, I put subdomains of that also. And I am sure not the only one,
do for example "drill ibm.com" and you get an A record.
But I read everywhere that there must be at least three labels:
hostname, and domainname with TLD.
Where is this defined?
I suspect a provider of free mail sets the mails from my server on spam because of
this. And this free mail provider is not google.
Technically it works, I use a name like xxxx.xx, not host.xxxx.xx
And yes, I put subdomains of that also. And I am sure not the only one,
do for example "drill ibm.com" and you get an A record.
But I read everywhere that there must be at least three labels:
hostname, and domainname with TLD.
Where is this defined?
I suspect a provider of free mail sets the mails from my server on spam because of
this. And this free mail provider is not google.