Free tools
Free cold email infrastructure tools
Quick checks for one record or domain. Each runs live in your browser with no signup. Paid QA connects the results across the whole workspace, groups the fixes, records a launch verdict, and watches the approved baseline.
Free SPF Record Checker
Look up a domain's SPF record and count its DNS lookups against the limit of 10.
Open toolFree DMARC Record Checker
Look up a domain's DMARC record and read its policy in plain English.
Open toolFree DKIM Record Checker
Look up a domain's DKIM selector and confirm the public key exists.
Open toolSPF DKIM DMARC Checker
Run SPF, DKIM, and DMARC together for a sending domain before launch.
Open toolFree MX Record Checker
Look up a domain's MX records and detect the mail provider.
Open toolFree Email Blacklist Checker
Check a domain and sampled mail server IPs against domain and email blocklists.
Open toolFree Domain Reputation Checker
Check observable cold email reputation risks across age, blacklist, authentication, MX, and HTTPS signals.
Open toolFree Email Deliverability Checker
Check observable cold email infrastructure readiness across MX, SPF, DKIM, DMARC, blacklist, age, tracking-domain, and SMTP egress identity signals.
Open toolFree Receiver Requirements Checker
Check observable Gmail, Yahoo, and Microsoft sender requirements from public DNS and optional pasted message headers.
Open toolFree Recipient Domain Preflight Checker
Paste emails or domains and classify MX provider, free inboxes, security gateways, SPF, DMARC, and receive-mail readiness.
Open toolFree Tracking Domain Checker
Check a branded cold email tracking domain for CNAME setup, DNS resolution, HTTPS, and redirect handoff.
Open toolFree MTA-STS and TLS-RPT Checker
Check MTA-STS and TLS-RPT records for inbound mail security posture before a cold email launch.
Open toolFree PTR and rDNS Checker
Check a custom SMTP egress IP for PTR, reverse DNS, and forward-confirmed rDNS before launch.
Open toolCold Email Launch Checklist Generator
Generate a pre-launch QA checklist for domains, inboxes, authentication, tracking domains, blacklist checks, and signoff.
Open toolCold Email Domain Checker
Run MX, SPF, and DMARC in one pass for a quick readiness verdict on a sending domain.
Open toolDomain Burn History Checker
Check whether a domain has already sent cold email, carried a tracking hostname, or picked up a listing, before you buy it.
Open toolFrom lookup to launch decision
Check the full workspace, then keep the approved baseline watched.
One import covers sending domains, inboxes, tracking domains, and SMTP egress. Paid plans add grouped remediation, a shareable report, monitoring, and operational alerts.