Free Tool

MX Record Checker

Check whether a domain has MX records for receiving email.

Already have an Inbox Warmup account? Go directly to Dashboard

MX Record Checker

Check whether a domain has MX records for receiving email.

Enter a domain and run the check.

Use this before warmup

Why this helps
Many email issues start with DNS, SMTP connection problems or sudden volume increases before a campaign starts.
Next step
If the result shows a warning, use the free audit or connect your domain inside Inbox Warmup for guided setup.
Important
No warmup platform can guarantee inbox placement. Results depend on content, list quality, complaints, provider rules and domain history.