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Thunderbird (Troubleshooting) Outlook Email Fails to Load

This article describes how to fix a common issue with Thunderbird not being able to access Outlook emails. The issue is resolved through re-logging into Outlook on the Web and then restarting the Thunderbird Client.


If your Thunderbird client continues failing to load Outlook, follow these steps: 

  1. Go to Office 365 @ UWM.

  2. Click the Log Into Office 365 button and log in to Outlook on the Web using your UWM Outlook account.

  3. If you do not encounter an error logging into your account on Outlook on the Web, sign out of the account and relaunch Thunderbird. This should allow you to access your Outlook emails on Thunderbird.

Contact Us

If these steps did not resolve your issue, or if you encountered an error while attempting to log into Outlook on the Web, please contact the UWM Help Desk.

Please record any error codes you received while using Thunderbird with your UWM Outlook account. 

Phone: 1-414-229-4040

Toll-Free Number: 1-877-381-3459

Email Address:

Help Desk Online Support Form

Keywords:thunderbird, bird, login error, tbird, outlook, failure, fails, loading, load   Doc ID:123218
Owner:Help Desk K.Group:UW-Milwaukee Help Desk
Created:2022-12-29 10:37 CDTUpdated:2022-12-29 11:08 CDT
Sites:UW-Milwaukee Help Desk
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