Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.

If you are having problems with Outlook, there are a few things we can help with to get you back to sending and receiving your email. Select a tab option below for the version of Outlook you're using.

If you've successfully sent and received email from classic Outlook before, and now Outlook repeatedly asks you to reenter your password, one of two things may have happened.

You can use the Inbox Repair tool (SCANPST.EXE) to diagnose and repair errors in your Outlook data file. The Inbox Repair tool checks the Outlook data files on your computer to see if they're in good …

To get support in Outlook.com, click here or select Help on the menu bar and enter your query. If the self-help doesn't solve your problem, scroll down to Still need help? and select Yes.

For issues that are not covered on this page, we have multiple tools to help you automatically diagnose and fix a range of Outlook problems. Outlook Known issues in October 2025 updates

You can change the appearance of the message list and reading pane in Outlook. Email in the message list can be displayed as individual messages or grouped by conversation.

In Outlook, sometimes your outgoing messages get stuck in your outbox and just won't send. Learn about some ways to get them moving.

If you set up your notifications in Outlook, but find they're not working, check your status in Teams and check the notification settings in Windows. With new Outlook, system settings can occasionally …

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