RM565862 - Outlook: Block External Images Settings Update

Microsoft 365 Roadmap

Summary

Outlook on the web and the new Outlook for Windows now support will support new settings for loading external images. New settings will allow customers to block all external content, or to load all content by default if the customer admin allows. Existing default behavior will not be changed (load external content only for safe senders).

Published

Jun 17, 2026

Status

In development

Release

General Availability

Platforms

Web

Service

Outlook

Tag

In development
General Availability
Worldwide (Standard Multi-Tenant)

Cloud

Worldwide (Standard Multi-Tenant)

Description

Outlook on the web and the new Outlook for Windows now support will support new settings for loading external images. New settings will allow customers to block all external content, or to load all content by default if the customer admin allows. Existing default behavior will not be changed (load external content only for safe senders).

GA date: July CY2026