Can't connect outlook with exchange server but windows mail works

That's frustrating!

There could be several reasons why you're unable to connect Outlook to your Exchange server, but Windows Mail works. Here are some potential causes and solutions to help you troubleshoot the issue:

  1. Account settings: Ensure that your Outlook account settings are correct. Check the following:
    • Server name: Is it correct? Try using the fully qualified domain name (FQDN) of your Exchange server.
    • User name: Is it correct? Make sure it matches the user name you use to log in to your Exchange account.
    • Password: Is it correct? Try resetting your password if you're unsure.
    • Authentication: Ensure that you're using the correct authentication method (e.g., NTLM, Kerberos, or OAuth).
  2. Exchange server configuration: Verify that your Exchange server is configured correctly:
    • Check the Exchange server's settings to ensure that it's allowing connections from Outlook.
    • Ensure that the Exchange server's Autodiscover service is enabled and functioning correctly.
  3. Outlook version and updates: Make sure you're running the latest version of Outlook and that it's up to date:
    • Check for updates in the Microsoft Store (if you're using Outlook 2016 or later) or through Windows Update (if you're using an earlier version).
    • Ensure that you're running the correct version of Outlook for your Exchange server (e.g., Outlook 2016 for Exchange 2016).
  4. Firewall and network settings: Check your firewall and network settings:
    • Ensure that your firewall is allowing traffic to the Exchange server on the required ports (e.g., 443 for HTTPS).
    • Verify that your network settings are correct, including the DNS server and proxy settings.
  5. Outlook profile: Try creating a new Outlook profile:
    • Go to File > Account Settings > Manage Profiles.
    • Click "Show Profiles" and then "Add" to create a new profile.
    • Enter the required information, including your Exchange server settings.
  6. Exchange server connectivity: Test connectivity to your Exchange server using the following command:
    • Open a Command Prompt as an administrator.
    • Run the command telnet <Exchange_server_name> 443 (replace <Exchange_server_name> with the name of your Exchange server).
    • If you can't connect, check your network settings and firewall rules.
  7. Outlook configuration files: Try resetting Outlook's configuration files:
    • Go to File > Options > Advanced.
    • Click "Reset" under "Reset Add-ins and Settings".
    • Restart Outlook and try connecting to your Exchange server again.

If none of these steps resolve the issue, you may want to try:

I hope this helps you resolve the issue and connect Outlook to your Exchange server successfully!