cryptographic algorithm

What are DKIM, SPF, and DMARC?

These are email authentication protocols that use cryptographic algorithms to enhance email security:
DKIM (DomainKeys Identified Mail): Uses cryptographic signatures to verify the sender's domain.
SPF (Sender Policy Framework): Allows the sender to specify which IP addresses are authorized to send emails on behalf of their domain.
DMARC (Domain-based Message Authentication, Reporting & Conformance): Combines DKIM and SPF to provide a comprehensive email authentication system.

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