IETF RFC 7444
Security Labels in Internet Email
| Organization: | IETF |
| Publication Date: | 1 February 2015 |
| Status: | active |
| Page Count: | 15 |
scope:
This document describes a header field, SIO‐Label, for use in Internet email to convey the sensitivity of the message. This header field may carry a textual representation (a display marking) and/or a structural representation (a security label) of the sensitivity of the message. This document also describes a header field, SIO‐Label‐ History, for recording changes in the message's label.
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