{
  "number": 4406,
  "title": "Sender ID: Authenticating E-Mail",
  "authors": [
    "J. Lyon",
    "M. Wong"
  ],
  "published": "2006-04",
  "status": "Historic",
  "publication_status": "Experimental",
  "stream": "IETF",
  "pages": 19,
  "formats": [
    "TXT",
    "HTML"
  ],
  "abstract": "Internet mail suffers from the fact that much unwanted mail is sent using spoofed addresses -- \"spoofed\" in this case means that the address is used without the permission of the domain owner. This document describes a family of tests by which SMTP servers can determine whether an e-mail address in a received message was used with the permission of the owner of the domain contained in that e-mail address. This memo defines an Experimental Protocol for the Internet community.",
  "keywords": [
    "simple mail transfer protocol",
    "spam",
    "spoofing"
  ],
  "draft": "draft-lyon-senderid-core-01",
  "doi": "10.17487/RFC4406",
  "urls": {
    "html": "https://rfc.dk/rfc4406/",
    "text": "https://rfc.dk/rfc4406.txt",
    "rfc_editor": "https://www.rfc-editor.org/rfc/rfc4406",
    "datatracker": "https://datatracker.ietf.org/doc/rfc4406/"
  },
  "text_modified": "2006-04-24T18:48:40Z"
}