Email Syntax and DNS Checker
Validate email syntax and check domain DNS for MX, SPF, and DMARC records to improve deliverability.
Tool Guide & Tips
Improve email deliverability
Validate email syntax and check domain DNS for MX, SPF, and DMARC records. Quickly spot missing or invalid policies that can hurt inbox placement and sender reputation.
Syntax validation MX/SPF/DMARC checks Actionable guidance
Troubleshoot common issues
- Publish SPF with only required senders.
- Start DMARC in monitoring (p=none) before enforcement.
- Add DKIM for every outbound provider.
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