Andriy G. Tereshchenko wrote:
Why my ISP not willing to create mailboxes
root(_at_)ispdomain(_dot_)com, postmaster(_at_)ispdomain(_dot_)com,
abuse(_at_)ispdomain(_dot_)com for me ?
Why my ISP not willing to delegate me www.ispdomain.com,
ns.ispdomain.com, mail.ispdomain.com, ftp.ispdomain.com
subdomains ?
Because all of this are reserved words.
Documented in RfCs - I'm not sure about root@ and mail.*
SPFv1 will be reserved too !!
It's not the name of a service or protocol like www or
ftp, it's not in a RfC. Your idea is sound, but it's
only a very minor improvement of the "common practice".
For a real improvement we would need another DNS record
type resp. something like _spf. And then there will be
a transition period (several years) where old and new
style are used simultaneously.
If we add your idea now and the real improvement later
we get a transition period for 3 styles simultaneously.
That's why I think we shouldn't introduce more hurdles.
Bye, Frank