Wait, what is a "health check"?

It is a technical scan of your mail server to ensure it is following best practices for DNS, security, and identity.

Why did my MX check fail?

You might have an invalid priority, a CNAME violation, or a missing MX record entirely for your domain.

Indirectly, yes, because a healthy server follows the rules that ISPs use to identify trustworthy senders.

Typical checks include DNS records, TLS availability, reverse DNS, SMTP responses, and authentication alignment.

Yes, validate again after propagation to ensure configuration changes are live and functioning as expected.

Mail Server Health Check is a technical validator that ensures your SMTP infrastructure is configured correctly for modern email standards.

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Mail Server Health Check is a technical validator that ensures your SMTP infrastructure is configured correctly for modern email standards.

AI-written reply suggestions

Automated follow-up sequences

Campaign open & click tracking

Unlimited connected accounts