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I've looked at various other forums and chats, and it looks like this isn't possible...but is there a way to have T'bird expand all email threads by default for all folders, so I don't keep on having to hit the "*" to make it happen? This seems like an easy fix, whereby the user could have threads collapsed or expanded by default.

My email provider is terminating the existing email domain name, and replacing it with a new domain name. I want to retain all existing Thunderbird folders and emails for use with the new email. Example: username@q.com becomes username@myclk.com. (Yep, it's Centurylink.)

Can I change my existing Thunderbird account name and email and retain all existing folders and emails in the account? Some server settings would also be changed.

Or, do I need to set up a new account?

Thanks

Thunderbird v 141.0 64 bit on Windows 11 Hope you can help. I have my main Thunderbird calendar synced with a Google calendar. When I created the sync, the Thunderbird calendar was populated with all the events in the Google Calendar. When I created a new event in the Google Calendar, it appeared in the Thunderbird calendar. When I deleted a recurring event (that originally created in the Google calendar) from the Thunderbird calendar, it was deleted in the Google calendar. All good! But I have created multiple events in the Thunderbird calendar, but they are not appearing in the Google calendar.

Any thoughts? Thank you so much. Best, Stuart

I want to open my MSG files in Thunderbird, but with attachments. I have received a large number of MSG files that are so large in size, and my main problem is that I want all of those files in my Thunderbird. Manually doing that took a lot of time plus in some files, attachments were not supported. Any reliable way to open .msg in Thunderbird?

I have imported my GoDaddy Emails into Thunderbird. I am able to receive emails but I am not able to send anout emails so I believer my outgoing settings must be incorrect. Can someone help me. Thanks / J

I find US date format utterly confusing. I want change settings so that my Thunderbird email is in UK date format. 1 - How can I do this please? 2 - If the answer to 1) is "you can't yet" then how soon will this option be made available?

I have had Thunderbird on my HP laptop for several years. Everything has worked perfectly. BUT, I cannot receive Email, starting yesterday. When I click the Get Email icon, nothing happens. My Email server on Comcast is getting Email which I can see and read, but Thunderbird is not getting the Email. I would appreciate any advice.

Regards, Jim

Hello,

I run Thunderbird 146.01 under Windows 11 Version 10.0.22631 Build 22631... TB pulls messages from a POP Server.

Though I have tried many fixes TB keeps reverting to requiring that I manually run both Spam Sorting, and Filter Sorting, usually after running these functions automatically for about a week.

Might someone suggest a fix that will have some lasting benefit?

Many thanks,

Lothar

Some inbox entries cannot be deleted. When deletion is attempted the body text is removed but the Subject and Correspondent remain in the Inbox and the message is marked as unread. This seems to be mainly with email originating from Outlook. Tried restarting Thunderbird but no change. Is there a setting that might do this?

How can I fix Thunderbird's sudden problem with alphabetizing in the list of folders/subfolders? E.g. "To read tablet" is sorted after "To read WebMd" and "Karin" comes after "ZZ-Friends Common" and "Susie" comes after "Zhahai"

This started happening relatively recently - a few months ago, I think. Suddenly folders that used to be in the correct alphabetic order were suddenly misplaced.

I think the last Thunderbird has broken my ability to send reports from QuickBooks to Thunderbird. It has worked wonderfully for years and now I cannot send anymore. I have QB 2024 Enterprise. Does anyone have a fix for this? I have made sure Thunderbird is the default app in both Thunderbird and Windows. I have not upgraded my windows 10 to windows 11. I hope that is not the problem.

Hi, am not finding anything helpful in the support area, so hoping someone can help me solve. When a calendar reminder pops up, and I try to snooze or dismiss, I get this message:

Status Code: 2,147,500,037, null

Server Replied with 400 If you’re seeing this message after snoozing or dismissing a reminder and this is for a calendar you do not want to add or edit events for, you can mark this calendar as read-only to avoid such experience in future. To do so, get to the calendar properties by right-clicking on this calendar in the list in the calendar or task view.

Thing is, I do want to add and edit events, so I have no other options and the reminder keeps popping up every couple of minutes it seems. Any help resolving is appreciated. Thx!

I am reporting an issue with message filters in Thunderbird.

When the UI language is set to Japanese (ja-JP), the “Perform these actions” section in Tools → Message Filters is not displayed, making it impossible to configure filters.

Environment OS: macOS Sequoia 15.6.1 UI language: Japanese (ja-JP)

After switching the UI language to English (US) and restarting Thunderbird, the actions list appears and filters work normally. Switching back to Japanese reproduces the issue.

This seems to be a Japanese localization-related bug.

Thank you.