FREE TOOL
Audit your cold email setup before you hit send
Paste your domain. We check the public DNS and HTTPS records that decide whether mail servers will trust your sending domain. Results in seconds, right on this page.
What it does?
Cold Email Auditor reads the public records that control whether mail servers trust your domain: MX routing, SPF policy and its recursive include chain, DKIM keys across common selectors, your DMARC policy and reporting, MTA-STS over HTTPS, TLS-RPT, DNSSEC, and reverse DNS. Every finding is backed by the exact records we read, and the whole thing runs in under ten seconds.
How it works?
Type your domain.
A bare domain or a full URL both work. No signup, no email address, no catch.
We run live DNS and HTTPS checks.
MX, SPF and its include chain, DKIM selectors, DMARC, MTA-STS, TLS-RPT, DNSSEC and reverse DNS. No paid APIs and no AI anywhere in the stack.
You get a scored report with receipts.
A single weighted score, a list of what to fix first, and exact DNS records you can paste at your provider.
What you get?
A score with receipts.
One number plus the raw DNS records behind it. Expand any finding to see exactly what we read.
Fixes you can paste.
Actionable findings include the exact record type, hostname and value to add at your DNS provider.
Honest unknowns.
If DNS refuses to answer, we say so instead of guessing, and we never count uncertainty against your score.