Introduction

When using cloud service,

two-factor authentication

NB! Already existing Thunderbird account can be set up to 2FA if You change from Thunderbird Account Settings →  Servers tab → password to OAuth2. Same is needed for Outgoing Server. 

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Setting up

is required: Activate two-factor authentication in Microsoft 365.

Setup

NB!To use UT mailbox, the NB! Thunderbird version must be at least 77.  You can download latest version here.
The latest Thunderbird can be downloaded from:

• Installing optional software (Software Center)
• Thunderbird website.

1. Open the Thunderbird application.
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2. Fill in as follows:
   
   1. Your full name: your first name and last name
   2. Email address: UT e-mail addres in the format firstname.lastname@ut.ee
   3. Password: UT account password
   4. After entering the data, press the Continue button.
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3. The IMAP settings will be displayed, press the Done button.
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   If there is a need to change the IMAP settings, select Configure manually.
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4. Enter your UT account password and click the Sign In button.
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5. Verify your identity using two-factor authentication.
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6. To allow the Mozilla Thunderbird applcation, select Accept.
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7. Mozilla Thunderbird has been set up successfully! Click the Finish button to complete the installation.
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8. Add a new account. Enter your name, e-mail address and the password for your account. Vajutage Continue.
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9. Check that your username is correct. Click Done
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10. Enter Your password

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11. Your account is set up
12. Already existing Thunderbird account can be set up to 2FA if You change from Thunderbird Account Settings →  Servers tab → password to OAuth2. 
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13. Same is needed for Outgoing Server.
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