Free public tools that check your email-auth setup against public DNS. No signup, no crawl, no mail sent. Just paste a domain and read the result in plain English.
Paste any domain. Plain-English DMARC record audit, parsed alignment + policy + reporting endpoints. 3 seconds, no signup.
Walks every include and counts lookups against the RFC 7208 10-cap.
Auto-scans 25 common ESP selectors. No selector required.
Answer a few questions, get a paste-ready DMARC record.
Pick your senders, get a valid v=spf1 record under the 10-cap.
Generate a 2048-bit RSA keypair browser-side. Key never leaves you.
Paste raw email headers. We parse the auth chain in plain English.
Verify the BIMI record + SVG logo + VMC chain.
Read the policy file, check the DNS pointer, name the drift.
Paste a raw DMARC XML report, get plain-English back.
Want one of these sooner? Email the founder. Solo founder, fast feedback loop.