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Everything about Vouch by Reference

Email protocol

Vouch by Reference (VBR) is a protocol used in Internet mail systems for implementing sender certification by third-party entities. Independent certification providers vouch for the reputation of senders by verifying the domain name that is associated with transmitted electronic mail. VBR information can be used by a message transfer agent, a mail delivery agent or by an email client. Wikipedia →

đź§­ Start here: a 6-step reading path

  1. Read the overview: Vouch by ReferenceA 5-minute orientation
  2. Pick up a classic book: Who Killed Swami Laxmanananda?The most-reprinted book on the subject
  3. Go sideways: Email authenticationA closely related topic
  4. Go sideways: DKIMA closely related topic

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🗂️ The subject at a glance

  1. Operation
  2. Implementations and variations

🏆 Landmark papers (most cited)

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

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