Validate SPF, DKIM, DMARC, MX, BIMI, and MTA-STS DNS records for any domain. Enter a domain name below to instantly check all email authentication records with syntax validation, warnings, and recommendations.
Our DNS checker validates SPF records (including lookup count against the 10-lookup limit), DKIM selectors, DMARC policies, MX records, BIMI records, and MTA-STS policies. Each check includes syntax validation against RFC specifications and actionable recommendations.
Enter your domain name (e.g., example.com) and click Check. Results appear instantly showing all email authentication DNS records with their current configuration, any issues detected, and specific recommendations for improvement.