Email Deliverability Checker - Verify SPF, DMARC & MX Online
Email Deliverability Checker
Verify SPF, DMARC, and MX Records for Any Domain
Ready to Check
Enter a domain above to check its email authentication setup.
Understanding Email Authentication
Anti-Spoofing
SPF and DMARC records tell receiving mail servers which sources are authorized to send email as your domain.
Inbox Placement
Missing or misconfigured records are a leading cause of legitimate email landing in spam folders.
Migration Verification
Confirm DNS records were updated correctly after switching email providers.
Live DNS Query
Queries authoritative DNS in real time rather than relying on a cached third-party database.
SPF, DMARC, and DKIM Together
SPF authorizes specific mail servers to send on a domain's behalf, DMARC tells receiving servers what to do when checks fail and where to send reports, and DKIM (not checked here, since it requires knowing the domain's specific selector) cryptographically signs messages. A domain with only SPF and no DMARC policy is still vulnerable to spoofing that SPF alone can't catch.
Key Takeaways
- Three Records at Once: Checks SPF, DMARC, and MX records in a single lookup.
- Raw Record Text: See the exact TXT record content, not just a pass/fail summary.
- Client-Side Privacy: Only public DNS records are queried — no email is sent or read.