Free Email Authentication Tools

Generate valid SPF and DMARC DNS records in seconds. No signup required. Built by the team behind Sentura.

SPF Record Generator

Select your email providers, set your policy, and get a ready-to-publish SPF TXT record with DNS lookup tracking.

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DMARC Record Generator

Configure your DMARC policy, reporting addresses, and alignment options. Get a complete _dmarc TXT record instantly.

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Domain Health Checker

One-click email security audit. SPF, DKIM, DMARC, MX, MTA-STS, and blacklist status — plain English verdict plus a 0–100 score.

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Email Header Analyzer

Paste raw email headers and see SPF/DKIM/DMARC results, delivery path, sender provenance, and what would happen under strict DMARC.

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