Executive Summary A DKIM CNAME record lets a third-party sender sign your mail with your own domain. That signature is what DMARC alignment checks. These eight steps cover record collection and selector naming, so your messages keep passing authentication after you hand sending to an outside platform. When a third-party sender mails on your behalf, … Read more
Key Takeaway A DMARC aggregate report is a receipt for your email. It lists every server that sent mail as your domain and whether that mail passed. When a third-party tool breaks alignment, the report points straight at the IP address behind it. Learn to read that file and you can find the guilty sender … Read more
Key Takeaway DMARC failures come from a mismatch between the domain that gets authenticated and the domain your reader actually sees. Fix that mismatch and the reports clear up fast. What DMARC Really Checks DMARC is a policy that sits on top of two older tools. SPF checks the server that hands off your message. … Read more
Key Takeaway A business owner’s monthly campaigns kept failing DMARC while every record in their DNS panel looked fine. The problem was that none of them matched the domain actually doing the sending. This case study shows the header clues that revealed the gap and the record changes that closed it. The Symptom: Fail Reports … Read more