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Key Management & Crypto Hygiene

How to enforce your authentication. DMARC is the policy that enforces SPF and DKIM. It's an instruction you publish telling all receivers what to do if a message fails: (monitor), (send to spam), or (block it).

8 questions in this topic

What are DKIM selectors used for? What is a good DKIM key rotation strategy? Why use 2048-bit DKIM keys instead of 1024-bit? How should I manage DKIM private keys securely? How do I troubleshoot DKIM signature validation failures? What are common mistakes when creating SPF records? How do I parse and analyze DMARC aggregate reports effectively? What tools can help manage email authentication records?