DNS Tools

Validate MX/SPF/DKIM/DMARC/BIMI, detect mailbox providers and gateways, and check Microsoft 365 Autodiscover/SRV, OWA, and Intune (MDM/MAM). Also surfaces Apple, Google domain, and common SaaS verification signals.

Enter a domain below to get started. You can optionally select a specific email service provider to check for common DNS records, otherwise the tool will attempt to auto-detect the provider based on MX records.

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Detected providers

Checks

Records

Hints

Changes since baseline

Note: DNS changes can take time to propagate. If you recently updated your records, please allow up to 48 hours and check again.