3 ms·

I would have implemented DKIM and SPF.

• weird-eye-issue 3y ago
  Great. But that doesn't solve this particular problem. Why do you think every legit ESP makes you do domain level validation using a custom TXT record?
  • iamacyborg 3y ago
    The only reason most do that is to enable branded tracking links.
    • weird-eye-issue 3y ago
      You are thinking of CNAMEs, and no, it isn't related.