MX Record
A DNS Mail Exchanger record that specifies the mail servers responsible for accepting email on behalf of a domain. Missing or null MX records indicate a domain cannot receive mail.
Why it matters for email security
Understanding mx record helps you build signup flows that resist fake accounts, disposable inboxes and automated abuse. VeriShield Edge operationalizes this signal as part of its transparent 0-100 fraud score.
Related concepts
Explore the full glossary or the domain directory to see these signals applied to real domains.