Deliverability utilities

DNS and domain checks with interpretation guides. Interactive checkers live in the console; every page still gives actionable guidance.

Checks

Auth diagnostics

Quickly validate DNS and authentication posture before ramping volume.

Checkers

Signals

Actionable

Coverage

DNS + policy

SPF

Interpretation, not just pass/fail

DKIM

Validate selectors + alignment

DMARC

Policy + enforcement clarity

Spf Checker

Understand SPF alignment for your sending domains. Validate syntax expectations and common failure modes before mail leaves your infrastructure.

DKIM signing proves message integrity and domain alignment. Use DKIM checks to catch key rotation mistakes early.

Review DMARC records and alignment expectations. DMARC ties SPF/DKIM signals into a coherent enforcement story.

Check whether your sending IPs or domains appear on common DNS blocklists—and what to do if they do.

Verify addresses to reduce bounces and protect reputation. Use verification as part of hygiene, not as permission to spam.

Evaluate content and header patterns that correlate with spam filtering. Improve signals before you send at scale.

A consolidated view of authentication and DNS health signals for a domain—SPF, DKIM, DMARC, and common misconfigurations.

Start sending, compare plans, or talk to sales for enterprise and high-compliance programs.