Check your email domain.
Choose a quick DNS scan or test one real message.
Live addresses expire after 30 minutes. Captured mail is deleted after analysis.
Enter only the domain, for example example.com.
Choose a check
Check DNS
A quick check of SPF, DMARC, MX, and other public DNS records. No email is required.
Test a real email
Creates a temporary address and checks authentication on an email it actually receives.
Advanced DKIM selectors
Separate multiple selectors with commas. Leave this empty if you do not know the selector.
DNS mode reads public records. Live mode processes only the message you send. Privacy
Enter a domain to begin.
Run a check
Run a check to load the result.
Results appear here.
Run the DNS-based domain check.
What to fix first
Start at the top. Confirm each change with whoever manages the domain, then retest.
- Run a check to see recommended next steps.
Evidence observed
Public records and message evidence available at check time.
Live delivery test
- Run the live test only when you need delivery evidence.
This-session history
Kept only in this open page. Reloading clears it.
- Run a check to start a private, session-only comparison.
Verify the change
After changing DNS or mail configuration, retest the same domain and compare its score and observed evidence.