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MX Lookup

This tool allows you to perform a comprehensive MX record lookup and evaluate the email security posture of any domain. It analyzes MX redundancy, SPF, and DMARC status to provide an overall Email Security Grade.

Frequently Asked Questions

What are MX records?

Mail Exchange (MX) records are DNS settings that specify the mail servers responsible for receiving email for a domain.

Why is MX redundancy important?

Redundancy (having more than one MX server) ensures that if one server fails, another can still receive incoming emails, preventing downtime.

What is SPF?

Sender Policy Framework (SPF) is a TXT record that lists authorized IP addresses allowed to send emails on behalf of your domain.

What is DMARC?

DMARC (Domain-based Message Authentication, Reporting, and Conformance) tells receiving servers what to do if an email fails SPF or DKIM checks.

How is the Security Grade calculated?

The grade is based on the presence of redundant MX records, valid SPF configuration, and a protective DMARC policy.

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