What this tool does
It audits MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, PTR hints, and mail routing signals.
Deliverability Suite
Email Deliverability Checker
Audit the DNS records that decide whether your email reaches inboxes or gets rejected.
MX routing
SPF & DKIM
DMARC
MTA-STS / TLS-RPT
Routing checks
Verify MX hosts, target IPs, and PTR hints.
Authentication
Find SPF, DKIM, and DMARC issues before providers reject mail.
Modern reporting
Check MTA-STS, TLS-RPT, and BIMI readiness.
Tool guide
How the Email Deliverability Checker works
This checker expands beyond basic DNS to review the modern mail authentication and reporting records inbox providers expect.
Who it helps
- Site owners trying to improve inbox placement
- Agencies managing client email DNS
- Hosting customers moving mail between providers
Usage instructions
Enter a domain and review the routing, authentication, and reporting sections. Use the warnings as a prioritized DNS cleanup list.
Understanding the output
A good result means mail routing exists and authentication records are coherent. Warnings usually mean a provider may accept mail but treat it with less confidence.
Why it matters for hosting
Strong deliverability protects invoices, password resets, WooCommerce notifications, and support replies. It is especially important after DNS, server, or email-provider changes.
