Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More
Open

Outlook: OAuth Authentication failure with IMAP

Thunderbird Passwords and sign in
Simon
Simon

Hi all!

I'm having some issues with using Thunderbird with my Outlook account. From a fresh Thunderbird profile, I can sign in to the account, and get the Microsoft authentication popup. Afterwards, Thunderbird works until I close and reopen the app. After that, I get authentication failures when fetching mails.

This is only with IMAP. POP works, but I'd like to sort my emails with server-side rules.

My system is freshly updated (Thunderbird 152.0 on CachyOS 7.1.3-2).

If anyone could help me, I'd be much obliged!

Cheers!

Hi all! I'm having some issues with using Thunderbird with my Outlook account. From a fresh Thunderbird profile, I can sign in to the account, and get the Microsoft authentication popup. Afterwards, Thunderbird works until I close and reopen the app. After that, I get authentication failures when fetching mails. This is only with IMAP. POP works, but I'd like to sort my emails with server-side rules. My system is freshly updated (Thunderbird 152.0 on CachyOS 7.1.3-2). If anyone could help me, I'd be much obliged! Cheers!

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.