Email deliverability checklist
Use this list to improve inbox placement and reduce spam folder placement.
Authentication checklist
- SPF record exists and lookup count is under 10.
- DKIM signing is enabled on every sending platform.
- DMARC record exists with valid reporting address.
- SPF or DKIM aligns with your visible From domain.
Infrastructure checklist
- MX records are valid and reachable.
- MTA-STS is deployed for inbound transport security.
- TLS-RPT is configured for delivery failure visibility.
Reputation and content checklist
- Use confirmed opt-in and list hygiene workflows.
- Keep bounce and complaint rates low.
- Avoid misleading subject lines and spam-trigger content patterns.
- Warm up new sending domains gradually.