Office 365 Troubleshooting Tool

When providing technical support to your end users in a Microsoft 365 infrastructure, it is good to have in mind the following list of useful Microsoft 365 troubleshooting tools.

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  1. This series is intended to provide you with technical support insights and proactive guidance for Office 365. We focus on support trends and issues which reflect customer needs. If you need individual technical support for a specific scenario, please log a service request in the online portal.
  2. For more information and to install the tool, see: About the Microsoft Support and Recovery Assistant. Additional resources: Office 365 Support Corner: These videos are created by Microsoft 365 support engineers to help you learn more about Microsoft 365, and are focused on support trends and top how-to questions and issues.

If you're using Outlook to access your Office 365 email account or another Exchange-based email account, and you're having problems, we want to get you back to sending and receiving email as quickly as possible.

Note

If you're looking for help with Outlook.com, check out Help for Outlook.com. > If you're looking for help with Outlook for Mac, check out Outlook 2016 for Mac Help.

Let us fix your Outlook connection problems for you

We can diagnose and fix several common Outlook connectivity issues for you. If our automated tool can't fix your issue, or you'd like to fix it yourself, see the next section.

Let us fix your issue
Support and Recovery Assistant for Office 365
Need more help?
Contact support for business products - Admin Help.

Fix software update and profile issues

Out-of-date software and corrupted Outlook profiles are two of the most common issues that can prevent you from sending and receiving email. If you're an admin with multiple users reporting problems, you also should check for service issues with Office 365.

Common Outlook fixes

Office 365 troubleshooting tool download
Run Windows UpdateIf your Outlook client software or Windows operating system software is out of date, you might have problems sending and receiving email. For Windows Update instructions, see Windows Update: FAQ
Repair your Outlook profileAn Outlook profile is a set of configuration information that includes your user name, password, and file storage location. To repair your Outlook profile, see Fix your Outlook email connection by repairing your profile.
Check for service issuesAdmin only: If more than one person in your organization is experiencing email problems in Office 365, it could be due to a problem with the service. Go to the Office 365 service health dashboard page (admin sign in required), and check the status of the services under Exchange Online.
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Microsoft Office provides online services and server products for your business with solutions for small to enterprise scale. This page provides guidance for troubleshooting issues with these products and services.

Office 365

SharePoint

Exchange

Skype for Business

Microsoft Outlook

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