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Thunderbird authentication issue with secondary Outlook account

Thunderbird Hesła a přizjewjenje
erdemonal11
erdemonal11

Hello,

I'm having an authentication issue with Thunderbird on Fedora when trying to add a second Microsoft account.

My main @outlook.com account works without any problems using IMAP/SMTP and OAuth2. However, I can't get my @outlook.fr account to work.

For the @outlook.fr account, I'm using:

IMAP: outlook.office365.com, port 993, SSL/TLS, OAuth2 SMTP: smtp.office365.com, port 587, STARTTLS, OAuth2

When I add the account, the Microsoft login page opens normally. I sign in with the @outlook.fr account, complete 2FA, and Microsoft confirms that the account has been successfully connected to Thunderbird.

However, as soon as I return to Thunderbird, I get an authentication error saying that it was unable to log in to outlook.office365.com with that username.

I've already tried clearing Thunderbird's saved passwords, cookies, and web cache. I also confirmed that IMAP is enabled in Outlook web settings, checked the account aliases/sign-in preferences, and verified the server names and ports.

Since the Microsoft authentication itself completes successfully, I'm not sure why Thunderbird fails immediately afterwards. The same setup works with my @outlook.com account, so the problem seems to be specific to the second account.

Has anyone encountered this before, or is there anything else I should check?

Thanks.

Hello, I'm having an authentication issue with Thunderbird on Fedora when trying to add a second Microsoft account. My main @outlook.com account works without any problems using IMAP/SMTP and OAuth2. However, I can't get my @outlook.fr account to work. For the @outlook.fr account, I'm using: IMAP: outlook.office365.com, port 993, SSL/TLS, OAuth2 SMTP: smtp.office365.com, port 587, STARTTLS, OAuth2 When I add the account, the Microsoft login page opens normally. I sign in with the @outlook.fr account, complete 2FA, and Microsoft confirms that the account has been successfully connected to Thunderbird. However, as soon as I return to Thunderbird, I get an authentication error saying that it was unable to log in to outlook.office365.com with that username. I've already tried clearing Thunderbird's saved passwords, cookies, and web cache. I also confirmed that IMAP is enabled in Outlook web settings, checked the account aliases/sign-in preferences, and verified the server names and ports. Since the Microsoft authentication itself completes successfully, I'm not sure why Thunderbird fails immediately afterwards. The same setup works with my @outlook.com account, so the problem seems to be specific to the second account. Has anyone encountered this before, or is there anything else I should check? Thanks.

Wot erdemonal11 změnjeny

Dyrbiće so pola swojeho konta přizjewić, zo byšće na přinoški wotmołwił. Prošu stajće nowe prašenje, jeli hišće wužiwarske konto nimaće.