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Best-Practice Guidance

Terminology and Definitions for Email Security

A reference guide to key terms and definitions in email security, developed to reduce ambiguity and improve consistency of understanding across organizational and professional contexts.

Date:

Version: Draft 1.0

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This publication placeholder represents ESI’s terminology and definitions work for the initial release.

The final paper will establish consistent language, clarify boundaries between commonly conflated terms, and support better communication across technical and organizational audiences.

In the first implementation pass, the placeholder confirms the publication structure needed for future downloadable paper-style documents and longer-form reference content.