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Thunderbird ver 140.0 (64-bit) on Windows 11.

Brand new, fresh installation of Thunderbird. - Added a GMail account. That worked. - I tried to add an account with my personal domain. I enter my name, the email account, and Thunderbird gets stuck in an unending loop looking up the configuration. - Other email clients have successfully looked up the config and did the setup without a problem. - The email account is handled via IONOS.com servers. - If you gave me a manual setup option I could handle it but there is none; TB goes straight into trying to handle it itself.

Any ideas?

TY, Frank

I made a mistake. I had 128 and went up to 140. It pretty much looks the same, but a big difference is an extension I always use says it will not work with 140. I don't care how good 140 might be; if I can't use my app, QUICKTEXT, then I don't need this. How do I go back to 128 or to a version that works with my extension?

My green "New Message" button has stopped working for some reason. I've tried switching it off then back on but it still won't work. so at the moment I can't create new emails. Regards William

I started getting error messages to say that my account was rejected at the server, This happened on all my email accounts. I obviously checked that the configuration of the accounts was correct although they had been working previously. I removed my VPN and Firewall, removed the app and deleted residual data and then re-installed. I still have the same/similar problem, when i try to add an account i get a message saying "Unable to login to Server, probably the wrong configuration, username or password" All of which have been checked multiple times.

When exporting an address book, all addresses are exported, without being divided into mailing lists. How do I make the address book exported divided by mailing lists? The full address book list is exported, without mailing list categories.

Hello, I have recently been unable to create new messages in Thunderbird. I am currently on the latest version, 139.0.2 (64-bit). There is no Create New Message Button, and Control + N does work either. I am also now getting a lot of extra information in the Header Pane. Refer to the Screen Shot JPG. Thanks, Graeme

Starting yesterday 4-3-2025 my Thunderbird email keeps locking up and saying it is not responding. I can close it and open it and then work with it for 2 or 3 minutes and it will start not responding again. This is a consistent problem the last few days. I did check and it said there was an automatic update on 4-2-25. I am not sure if this had anything to do with it but i did go in and request an update about 2 hours ago today. This has not helped as I still consistentaly get the not responding problem. Please advise what I can do to fix this.]

The red background of selections and default buttons makes it almost impossible for me to read the black text. I'm using Thunderbird 1.28.1esr on a fully updated Windows 10 desktop machine. I tried deselecting the use of System colors with Thunderbird Settings/General/Fonts & Colors/Colors, with no effect. How can I change the background to my Windows system background of gray or any other background color that can Thunderbird selections readable?

Hi, on my friends pc, we run thunderbird, and in the last time the new email button, the ctrl+n, or the file-->new email dons't work. We have no extensions, reinstall didnt work. tried to downgrade but than the emailt dont work. We get the new emails, we can reply to a mail, but the new email window don't shows up.

please help i dont know what to do...

I tried to connect to an existing Google-Mail account via 'new', 'existing mail account' etc.. Finally a Google-Login-Window appears. After inserting the username Google responses with a message, that my browser does not support javascript. However, both in thunderbird and in firefox javascript is enabled.

Sincerely Yours Stefan Holzreiter

Hello,

The latest version, 128.10.0esr, was recently released, and one of the changes is:

Changed color override defaults with high contrast mode on macOS and Linux

https://www.thunderbird.net/en-US/thunderbird/128.10.0esr/releasenotes/?uri=/thunderbird/releasenotes/&locale=en-US&version=128.10.0&channel=esr&os=Darwin&buildid=20250425031534

I use dark mode, but I prefer to view the email body in light mode, as this is typically the sender’s default formatting. To achieve this, I previously configured: • Settings → General → Fonts & Colors → Colors • Set Text to black and Background to white • Enabled “Override the colors specified by the content with my selections above:” and set it to “Only with High Contrast themes”

However, since this update, this setting no longer works. Now, the only workaround is to manually click the “Turn dark mode off” button for each email, which does work. But it’s inconvenient to do this every time.

Is there a way to disable dark mode for all email bodies by default, so I don’t need to click the button each time?

Thank you!

Yours,

Group contacts have been established and the group is listed in the Address page. An email is prepared and the group name is inserted in the bcc slot. An x appears to the left of the group name. The Send button is grayed out and the email can't be sent. What is the problem?

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