This bulletin summarizes the information presented in NIST SP 800-177: Trustworthy Email. This publication gives recommendations and guidelines for enhancing trust in email. This guideline applies to federal IT systems and will also be useful for any small or medium sized organizations.
, Feldman, L.
and Witte, G.
Making Email Trustworthy, ITL Bulletin, National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=922084
(Accessed July 5, 2022)