Note Bandwidth limits only apply to Delivery Optimization for automatic updates downloads. If you manually initiate a download—for example, by updating Windows in Settings > Windows Update or …

May 12, 2026 · This article provides information about Delivery Optimization, a peer-to-peer distribution method in Windows 10 and Windows 11.

May 27, 2026 · Details of how Delivery Optimization communicates with the server when content is requested to download including privacy, security, and endpoints.

Note: Bandwidth limits only apply to Delivery Optimization for automatic updates downloads. If you manually initiate a download—for example, by updating Windows in Settings > Windows Update or …

Select Start , then select Settings > Update & Security . Select Delivery Optimization (or Choose how updates are delivered in earlier versions of Windows 10). Select PCs on my local network. Select …

May 20, 2026 · In this article, learn about the different configuration considerations to optimize Delivery Optimization (DO) in your environment.

Apr 10, 2026 · List of frequently asked questions for Delivery Optimization.

May 20, 2026 · This article provides a summary of references and descriptions for all of the Delivery Optimization settings.

Jun 25, 2025 · Describes a by design behavior that emails may not be delivered at the scheduled time in Cached Exchange Mode even if the Do not deliver before option is enabled. Provides a workaround.

Mar 2, 2024 · Hi, I am Dave, I will help you with this. Rest assured, it is safe to disable Delivery Optimization on your system you would still receive all Windows updates, deleting that service will …

Try these solutions if sent messages in Outlook.com come back with a "delivery failed" error.

May 20, 2026 · How to monitor Delivery Optimization using either the Windows Update for Business Delivery Optimization Report or Windows PowerShell cmdlets

Dec 8, 2025 · Learn how to use Configuration Manager to manage update content to stay current with Windows.

3 days ago · Learn how to create and manage organizational messages in the Microsoft 365 admin center. Drive adoption and configure delivery to Windows and Teams.

In a message you're composing, go to the Options tab on the ribbon. In Tracking on the ribbon, select the Request a Delivery Receipt box and/or the Request a Read Receipt box. Options More Options …

Mar 24, 2026 · It's vital that administrators be able to diagnose and resolve issues quickly in Exchange Online and Outlook. To support this effort, the Exchange and Outlook support teams have released …

Jun 15, 2026 · Admins can learn how to use the advanced delivery policy in Microsoft 365 to identify messages that shouldn't be filtered in specific supported scenarios. For example, non-Microsoft …

Jun 25, 2025 · Admins can learn how to fix email delivery issues in Exchange Online.

Learn how to fix a failed delivery message from the postmaster when using Outlook.

Jun 10, 2026 · Find information about how to deploy the ServiceNow Knowledge Copilot connector in the Microsoft 365 admin center, including prerequisites, configuration steps, and customization options.