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Open a terminal, install and/or update thunderbird to latest version by running these commands for Ubuntu:
Code Block language text sudo apt update sudo apt install thunderbird sudo apt upgrade thunderbird
Or these commands for CentOS:
Code Block language text sudo yum clean all sudo yum install thunderbird sudo yum upgrade thunderbird
In your terminal window, start Thunderbird by typing 'thunderbird' in your terminal window:
Code Block language text thunderbird
- You will be presented with a window that says "Welcome to Thunderbird"
- When asked: "Would you like a new email address?"If you are prompted to "Set up an Existing Email Account", close this window, click cancel, or select "I think I'll configure my account later"
- Select the menu button in the upper right (the box with three lines in it)
- Select: Add-ons
- Click the button that says "browse all add-ons"
- Type "owl" in the search dialog box
- Select the choice that shows up which says "Owl for Exchange"
- Click "+ Add to Thunderbird"
- Under "Tools -> Add ons", click on "Owl for Exchange", and click "Preferences"
- Click "Add new account Manually"
- Next to Webmail page, enter: https://outlook.office365.com
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