Email

A place to document my learnings about email

Top-Notch Resources

Email Authentication

  • SPF (Sender Policy Framework) - List of authorized mail sources
  • DKIM (DomainKeys Identified Mail ) - Mail signature
    • Email sending server signs message with private key
    • Email domain publishes public key in DNS
    • Mail recipient server checks signature of mail against published DKIM values
  • DMARC (Domain-based Message Authentication, Reporting and Conformance)
    • RUA (Aggregate)
    • RUF (Forensic)
    • p= (Policy to Apply)
    • max 2 recipients
Last modified February 16, 2024: ADD: SPF, DKIM, and DMARC definitions (2cc34cb)