How can I interpret DMARC reports to find email authentication issues?
To interpret DMARC reports and find email authentication issues, parse your aggregate (RUA) XML to correlate source IPs and sending domains with SPF/DKIM pass and alignment outcomes against your DMARC policy and disposition, then classify failures by cause (alignment gaps, SPF lookup/record errors, DKIM signing/misconfiguration, forwarding/ARC, or unauthorized senders) and remediate via DNS fixes, third‑party…
