Dec 15, 2025 by Thibault Debatty | 38 views
https://cylab.be/blog/463/use-thunderbird-to-fetch-your-outlook-365-emails
So your emails are hosted on Outlook 365? No problem, you can still use your favorite mail client Thunderbird to read and reply, thanks to the Owl extension!
Moreover, next to emails, the Owl extension allows to synchronize you Calendar and address books. There is even support for teams chats directly inside Thunderbird. Finally, Owl also supports multi-factor authentication (MFA).
In Thunderbird, open menu > Add-ons and Themes
Search Owl for Exchange
Click on Add to Thunderbird
Now get back to the main window of Thunderbird and open menu > Account Settings then click on New Account.
Fill your email address and password. This time a new entry will appear in the list of available configurations: Exchange/Office365
Owl is actually a paid extension, but the very modest price of 10€/month is totally worth it!
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