Generate SPF and DMARC records, flatten your SPF, check your domain's full email security posture, and look up DKIM, TLS-RPT, BIMI, and MTA-STS — in seconds, no signup required. Built by the team behind Sentura.
Select your email providers, set your policy, and get a ready-to-publish SPF TXT record with DNS lookup tracking.
Open toolConfigure your DMARC policy, reporting addresses, and alignment options. Get a complete _dmarc TXT record instantly.
Open toolOne-click email security audit. SPF, DKIM, DMARC, MX, MTA-STS, and blacklist status — plain English verdict plus a 0–100 score.
Open toolPaste raw email headers and see SPF/DKIM/DMARC results, delivery path, sender provenance, and what would happen under strict DMARC.
Open toolChecks your domain's DKIM keys — the cryptographic signatures that prove your email wasn't forged or altered in transit.
Open toolChecks whether your domain has TLS reporting set up — so you're notified when encrypted delivery to your domain fails.
Open toolChecks for BIMI — the standard that displays your verified brand logo next to your emails in supporting inboxes (Gmail, Apple Mail).
Open toolChecks MTA-STS end-to-end — both the DNS record and the policy file your domain serves — to confirm inbound mail to you is forced over encrypted, authenticated TLS.
Open toolMaps every DNS lookup your SPF record triggers, shows where you're spending against the 10-lookup limit, and can flatten it to fit.
Open tool