For issues that are not covered on this page, we have multiple tools to help you automatically diagnose and fix a range of classic Outlook problems. Check out this article: Resolve Outlook for Windows issues with automated troubleshooting tools. Outlook Known issues in October 2024 updates.

Option 1: Get a newer Outlook email app which supports Modern Authentication. If your Outlook client does not support Modern Authentication, you will need to upgrade to the latest version and then setup using Outlook.com Sync.

This issue occurs because starting in 2024, many new devices are preinstalled with new Outlook for Windows and don't ship with classic Outlook. If you prefer to use classic Outlook at this time, a standalone version of classic Outlook for Windows is available for you to install.

Cumulative Update 23 for Microsoft Exchange Server 2016 was released on April 20, 2022. It includes fixes for nonsecurity issues and all previously released fixes for security and nonsecurity issues. These fixes will also be included in later cumulative updates for Exchange Server 2016.

We’ve put together a feature coverage matrix to help you and your teams understand what’s available and coming soon, compared to what exists today in the classic Outlook experience.

Symptoms. After you install or upgrade to Microsoft Exchange Server 2019 Cumulative Update (CU) 8, you receive error messages that resemble the following in computers event log: Log Name: Application. Source: ASP.NET 4.0.30319.0. Event ID: 1309.

In classic Outlook for Windows, select File in the upper left corner of the screen. Select Account Settings > Account Settings. Select the account you want to delete, then select Remove. You'll see a message warning you that all offline cached content for this account will be deleted.

There is not a 1:1 mapping of all classic to modern experiences. This article explores differences between classic and modern experiences, and offers suggestions for moving to modern experiences. For more in-depth information, see the Guide to the SharePoint modern experience.

Download the offline installer from your account portal. To download the offline installer, go to www.office.com. If you're not already signed in with the Microsoft account associated with your copy of Microsoft 365 or Microsoft 365 do that now.

Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.