DKIM
DomainKeys Identified Mail. An email authentication method that adds a cryptographic signature to messages so receivers can verify the mail was authorized by the domain owner.
Why it matters for email security
Understanding dkim 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.