For email marketers

Your campaigns change.
Keep authentication in view.

Find authentication problems across your sending platforms. Ray combines DNS checks and DMARC reports so you can bring clear evidence to the person who can fix them.

Check public DNS records and detected sending services. No signup or DNS credentials required.

Keep your sending platforms SPF, DKIM & DMARC findings Free check, no signup

Ready for ongoing monitoring? Create your account · View pricing

HubSpot
Passing
Observed messages pass DMARC
Klaviyo
Needs review
Reported DKIM alignment failures
Unknown Sender
Investigate
Confirm who owns this sending source
Illustrative monitoring data. Sender activity and authentication results become available after you connect DMARC reporting.

Understand the problem.
Bring IT the evidence.

DMARC checks whether a message passes SPF or DKIM with a domain that aligns with the visible From address. It also lets your domain publish a policy for messages that fail and request aggregate reports from participating mailbox providers.

Ray turns those reports and public DNS findings into a view of observed senders and authentication results. Use it with your IT team or sending-platform administrator to investigate the service that needs attention.

Authentication is one part of delivery. Reputation, content, recipient engagement, and mailbox-provider policies also matter. Ray does not measure inbox placement or guarantee where a campaign lands.

Built for Email Marketers

A shared view of authentication findings for marketing and the people who manage your DNS.

Sending Service Check

Identify services detected in DNS, then use DMARC reports to review observed authentication results. Investigate the configuration for platforms such as HubSpot, Klaviyo, and SendGrid.

Authentication Monitoring

Ray checks monitored domains hourly for DNS changes and authentication findings. Keep reviewing your configuration as sending platforms and records change.

Sender Visibility

Review services and source IPs observed in DMARC reports. Investigate unfamiliar senders with your team; an unknown source is not automatically an unauthorized one.

Email Alerts

Receive email alerts for monitored DNS changes and supported authentication findings. Review them with the person who manages your sending platform or DNS.

Trend Reporting

Review authentication pass rates as reports arrive. Compare results over time to see whether observed failures continue after a configuration change.

Authentication Health Dashboard

See SPF lookup counts, published DKIM keys, and DMARC policy alongside report findings. Bring concrete evidence to a conversation with IT or your email provider.

Authentication is part of sender requirements.

Gmail, Yahoo, and Outlook.com require SPF, DKIM, and DMARC for their bulk or high-volume senders. DMARC alignment can be satisfied through either SPF or DKIM. Each provider defines its own scope; Yahoo does not publish a numeric bulk-sender threshold.

Provider requirements also cover practices beyond authentication, such as complaints and unsubscribe handling. Ray helps you investigate DNS configuration and reported authentication results. Use your sending platform and the provider’s guidance to review the full set of requirements.

Start with a check.
Keep watch with monitoring.

  1. Check your domain.

    Inspect public email authentication records and services detected in DNS. Get a starting point without creating an account.

    Check my domain →
  2. Connect reporting.

    Create your account, verify your domain, and add Ray’s reporting address to your DMARC record. Your DNS administrator makes the changes with your existing provider.

  3. Review results over time.

    As mailbox providers send reports, review sender activity and authentication results. Hourly DNS checks and email alerts help you track changes.

See what your sending domain is telling you.

Check public DNS for free. Connect reporting when you’re ready for ongoing monitoring.

Check my domain free

Ready to monitor? Create your account →