william(at)elan.net wrote:
You forget about famous TLD as a host case (currently only
"ws") that John Klensin wants to fix by requiring trailing
dot
No, I found that nit and asked him about it, and it was really
intentional. Not yet clear what he'll do with it in 2821bis.
Let SPF reflect 2821, the new USEFOR <toplabel> is too hot for
SPF, it didn't pass any IETF last call yet.
Unclear political (ICANN) issues in the background, let's stay
away from that.
Some administrators regularly add "." to the end of domain
specification to signify its FQDN and not local hostname
That's fine, but they certainly don't do this in SMTP, where
the "at least one dot" rule tries to enforce FQDNs. Do you
know which SPF implementations break if you add a useless dot
here for a few TLD-FQDNs which would be 2821-syntax errors ?
Bye, Frank
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