Free tool · Technical SEO
Check DNS and email health
Check public MX, SPF and DMARC records for a domain. No inbox access or email sending. This is a limited configuration check, not a security or delivery guarantee.
Update MX, SPF or DMARC at your DNS provider with your email administrator. A WordPress plugin cannot change these records.
Frequently asked questions
What does this check?
It checks public MX, SPF and DMARC records. DKIM cannot be assessed without a selector.
Will this access my inbox or send email?
No. It reads public DNS records only.
Does a pass guarantee delivery or security?
No. Other settings and sender behavior also matter.
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