~/ dig +short TXT
Email Deliverability Checker
Check whether your domain is correctly configured for outbound email: SPF, DKIM, DMARC, reverse DNS and DNSBL listings — in one report, with concrete remediation steps.
> VERIFY IDENTITY TO GENERATE TEST BOX
Send your test email to the address below:
> ERROR: NO SMTP TRANSMISSION DETECTED (TIMEOUT)
No message was received within 5 minutes.
Email Metadata
Raw Auth Headers
// no authentication headers found
// remediation steps
// diagnostics
> MESSAGE HOPS 0 ▸
> ALL HEADERS 0 ▸
> SPAM ANALYSIS ▸
> EMAIL BODY ▸
Why deliverability is harder than it looks
Modern receivers (Gmail, Outlook, Yahoo) silently bin messages from misconfigured senders. Since February 2024, Gmail and Yahoo require SPF plus DKIM plus a DMARC policy for any domain. A single missing reverse-DNS (PTR) record or bad alignment can push your emails to spam. This tool surfaces every issue and pairs it with the exact DNS record change needed to fix it.