@misc{225411,
  author = {J. Nightingale},
  title = {Email Authentication Mechanisms: DMARC, SPF and DKIM},
  year = {2017},
  month = {2017-02-16},
  publisher = {Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.TN.1945},
  language = {en},
}