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Huntress Email Security - Mailbox Coverage and Licensing

Nick

Team: Huntress Email Security (ES)
Product: Microsoft 365, Google Workspace
Summary: This article covers which mailboxes are protected by Email Security, how to add and remove them, and what happens during license changes.

 

In this Article

Overview
Which Mailboxes Are Protected
Adding New Mailboxes
Removing a License: Automatic Roll-Off
Mailbox Types

 

Overview

This article covers which mailboxes Huntress Email Security protects, how to add and remove mailboxes from protection, and what happens when a user's license changes.

 

Which Mailboxes Are Protected

ES protects mailboxes that are activated in the Email Security section of the Huntress platform. A mailbox must be active for ES to:

  • Analyze the mail delivered to it.

  • Remediate malicious messages in it.

  • Process user reports of messages it received.

 

Adding New Mailboxes

When a new user is added to the tenant, ES activates the mailbox automatically, so newly created mailboxes are protected without manual intervention.

 

Removing a License: Automatic Roll-Off

If a Microsoft 365 or Google Workspace license is removed from a mailbox, ES handles the change automatically. The mailbox rolls off protection and stops counting toward your ES usage without any manual cleanup. You do not need to deactivate the mailbox in ES separately when offboarding a user.

 

Mailbox Types

  • Shared mailboxes

  • Resource mailboxes (rooms and equipment)

  • Distribution lists and Microsoft 365 groups

  • Unlicensed mailboxes

  • Guest and external users

  • Archive mailboxes

  • On-premises mailboxes in a hybrid Exchange deployment