3 ms·

AFAIK none of the TLDs allow for MX records on just the TLD i.e. johndoe@com will never exist

• bradbeattie 7y ago
  What about things like root@localhost?
• laumars 7y ago
  I'm not on about gTLDs like .com, I'm on about the privately owned ones like .amazon and .google
  • bduerst 7y ago
    I didn't say gTLDs. The id est applies to all.
    • laumars 7y ago
      TLDs can be managed very differently depending on the owners so I don't think it's safe to assume "applies to all" just because there is a rule in place for some gTLDs.