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Email Deliverability Checker
Check SPF, DMARC, DKIM, MX records, and blacklist status for any domain. Real DNS lookups via Cloudflare. Know exactly why your emails land in spam.
How it works
Checks all five deliverability signals that email providers use to decide if your email lands in the inbox or spam. Queries SPF, DKIM (15 common selectors), DMARC, and MX records via Cloudflare DNS-over-HTTPS. Blacklist check tests against known blocklists via DNS lookup. Zero third-party APIs.
What you get
- ✓SPF record and policy strength (pass / softfail / fail)
- ✓DKIM selectors found (Google, SendGrid, Mailchimp +12)
- ✓DMARC policy: p=none vs p=quarantine vs p=reject
- ✓MX records with priority order
- ✓Deliverability score with plain-English explanation