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New emails to some accounts appear as duplicates in the unified folder. I suspected it may be connected to the fact I use "All Mail" as the archive folder for a Gmail account, but now the problem is happening with a Proton account as well. When I restart Thunderbird, or deactivate and reactivate the Unified folders view, they no longer appear as duplicates.

I am using Thunderbird 149.0.2 on Windows 11. The issue started a few weeks ago. Any help would be much appreciated!

Hi I wanted to add my @live.de (Outlook) email account in Thunderbird. I entered the email and got redirected to Microsoft oauth, which I granted. After some loading I was presented a screen, where I should enter my password and username (again). After doing so I see a "Exchange auth error". I guess this means I somehow got in the exchange funnel, which is not fitting for my private outlook account. I was left in this state with back bringing me to the first view (before oauth) and continue gives me the error.

I could solve this problem by disabling the new account setup hub and setting it up using the old one.

If this experimental feature is enabled by default, you need a "something is not working please take me to the old version" button in the footer. I did not find any ways to report this bug, so I hope here is the right place.

When attempting to set up an e-mail account for Zoho e-mail I get an authentication error. It says: "Unable to log in. Probably wrong configuration, username of password." I disabled Account Hub, tried again, but this did not solve the problem, and I get the same authentication error. I tried several other things, using manual configuration, copying instructions from the Zoho website, but none of them worked. They all ended with the error message, "Thunderbird failed to find the settings for your email account." The server and port settings are correct. The username and password are correct. What is the problem?

I have just reinstalled T/B (3-4 times now). Scanned barcode from notebook. Installed ok. This mobile T/B DOES NOT give me any option to add folders. Only: inbox, outbox, drafts, sent, deleted. I at least want (1) extra folder to store messages. How do I achieve this? Thanks My laptop T/B works well (on Ubuntu)