Email Security
Email security protects the systems, domains, messages, and people that use email. It combines domain authentication, encrypted transport, message protection, filtering, identity controls, and reporting so attackers cannot easily impersonate your organization or turn a message into account access.
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Intro
Email Security
Email is a distributed messaging system. A message usually crosses networks and organizations before it reaches a mailbox. That reach makes email useful. It also means a receiver needs evidence before it trusts a message that claims to be from your domain.
Use this mental model: email security protects a chain of claims. A sender claims a domain. The message claims content. A receiving system claims to have delivered it. A person may then act on the message. Each claim needs a control that matches it.
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