Web results:
Choose Account Settings > Account Settings. On the Email tab, choose your account (profile), and then choose Repair. Note: The Repair option isn't available if you're using Outlook 2016 to connect to an Exchange account. Follow the prompts in the wizard, and when you’re done, restart Outlook.
Run a Microsoft 365 Diagnostic: There are Microsoft diagnostics that you can run to troubleshoot ...
Download the Microsoft Support and Recovery Assistant to let us fix the problem for you. Having trouble connecting to your email from Outlook on your desktop? Download the Microsoft Support and Recovery Assistant to diagnose and fix errors in your Outlook mail profile that might be causing the issue.
To help troubleshoot Outlook issues in a Microsoft 365 environment, follow these steps. Step 1: Investigate possible issues caused by add-ins Exit Outlook. Open a Run dialog box. To do this, use one of the following procedures, as appropriate to your version of Windows:
If you're having problems accessing Outlook.com, you can see the status of Microsoft Office Online Services at the Service Health portal. If you're having problems sending or receiving email, read how to Fix Outlook.com email sync issues. Last updated: 4 May 2023 Outlook.com issues affecting email messages, attachments, and features
2404385 Fix Outlook connection problems after Office 365 upgrade The purpose of this walk through is to assist you in resolving these complex issues by focusing on the scoping and steps used to isolate and resolve problems. Therefore the walk through starts by focusing on commonly encountered symptoms related to Outlook connectivity.
You're unable to connect to a mailbox. You experience feature-related issues (Mail, Calendar, or Contacts issues, for example). To fix these problems, set up Office to automatically update to the latest version. To do this, use one of the following methods, as appropriate for your situation.
If Outlook isn't syncing emails, ensure your internet connection is working, turn off the app's offline mode, manually sync your email folders, change your email sorting order so the newest emails are at the top, repair your email account or Outlook itself, unblock the email sender, clear your Outlook cache, or update Outlook.
To do this, follow these steps: Right-click the Windows icon in your task bar, and then select Windows PowerShell (Admin). If you're prompted by a User Account Control ( UAC) window, select Yes to start PowerShell. If your issue is about a work account, you have to fix the Azure AD WAM plugin ...
However, because you also disable the Allow the use of connected experiences in Office policy setting, access is blocked to the web-based cloud Autodiscover options. This combination of settings effectively disables all Autodiscover options and prevents Outlook from retrieving the email account settings.