File formats:

Status:

INFORMATIONAL

Authors:

K. Zeilenga
A. Melnikov

Stream:

INDEPENDENT

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC7444

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Abstract

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.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.