Forum der Gemeinschaft Thunderbird

Thunderbird functions normally (sends/receives), except after Windows 11 goes to sleep, I log back in without difficulty., but attempting to use Thunderbird to send email fails with the message

"Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp.mail.me.com failed. The server may be unavailable or is refusing SMTP connections. "

There's no prompt to re-enter the primary password, and the only way to restore normal Thunderbird operation is by rebooting WIN 11. Is this a known bug with a workaround? The failure occurs whether the outgoing server is smtp.mail.me.com (Apple), smtp.comcast.net, or smtp.gmail.com

I'm getting off a Verizon phone account and want to export my contacts before I do. I use an (old!) iPhone 8 so I can't export using their Verizon Cloud app because my operating system is too old. Is there a way to import into Thunderbird using a USB cord? Or is there a recommended non-evil app that could allow me to do the same with my phone contacts?

When email downloads from my internet server to thunderbird how do I indicate that the message is to be deleted from the server. ie I dont want the message to be in two places . At the moment after reading the email and saving it to a folder I have to log into my internet provider and delete the email.

In my Thunderbird I have some folders with names printed italic starting with "INBOX". The folders are empty, so it's easy to delete them. After deleting I don't see the folders anymore. But after shutting down Thunderbird and starting Thunderbird again, the folders are back... How do I delete the folders to not see them anymore?? (see also attached screen print)

Best regards, Marianne

Hello All, The opening email changed to a reader that works, but I'd prefer to use the "Classic Reader" by default. Searching the settings hasn't turned up anything that sounds right. Is there a behind-the-scenes file that I need to edit to resolve this issue?

I have some emails from BT (e.g. no-reply@inform.bt.com, BT@updates.bt.com, hello@message.bt.com)

When I search (using the bar at the top) for:

- "bt", it returns no results ("No messages match your search) - "message.bt.com", it returns the relevant results - "bt.com", it seems to return anything with ".com" in it (which is lots of things, my computer doesn't like this situation)

Is this a bug (or multiple bugs)?

Until recently I could click and hold and drag a message from my inbox to any other folder that I had on the left of the screen. It just recently stopped doing this. Any help would be greatly appreciated. I am running Thunderbird 140.12.1esr (64-bit) on a windows 11 pc.

I've been using Thunderbird for years with little problems. Until now. It won't let me compress as its saying I don't have any space left. Is there any way email files can be deleted to free up the space? I've deleted virtually every application from my drive and it still won't work. Many thanks Paul

Thunderbird shows email messages from the wrong account. The messages show properly in Yahoo website and on other computers using Thunderbird. Concurrent with this new issue, I now get message: Sending of the message failed. An error occurred while sending mail. The mail server responded: "Request failed: Mailbox unavailable. Please verify that your email address is correct in your account settings and try again."

I have verified the settings. Searching for help with Thunderbird, I see references to index files getting corrupt. However, I struggle with the correction procedures. When I right click on the bolded email address, "Properties" is not an option on the drop down menu. I cannot find a "Fix folders" button.

BTW, I did contribute December 17, 2025, it seems like a pretty good way to say "thank you!" Jim

Until recently, when I clicked on a link in Thunderbird, it was opened in Thunderbird. Now the link is opened on a wide-screen external monitor. I can't find the setting that was changed to make this difference.

"connection to server pop.mail.yahoo.com timed out" I have been getting this message in the activity manager for about a week now. When I click get messages, it says down loading message 1 of 1, but nothing happens.

How I could terminate the search when it has reached the end of the e-mail, and not just tell me "reached end of page, continued from top", a message that is so obscure and — if the window is quite narrow — will not even show.

Why I cannot select to get a pop-up note telling me I've reached the end of e-mail and ask if I would like to continue from top?

Recently (last three days) I have been getting many, many repeated popups with the heading "Login to server pop.mindspring.com failed" then below in popup options:

 RETRY      ENTER NEW PASSWORD     Cancel

I click RETRY After 1-3 of these in succession, the email arrives.

What's the problem?

Hello dear forum Here are the details: Account type: Microsoft Exchange (via OWL) Antivirus software and firewall used: Bitdefender I have the following problem: I copied the mbox files from the active account (profile) to Local Folders (as described in some forums), both with and without *.msf files (seems this makes no difference to the problem). Then I start Thunderbird, and all folders and subfolders appear in Local Folders. However, when I go into one of these copied folders or subfolders, it only displays a single email. The copied folder is the same size as the original, but no other emails are displayed, and this is repeated in every subfolder. I employed the repair function with no result. The import/export tool NG only copies half of the emails. The total is 4.25 GB. I can only copy the emails manually via copy/paste, but this is very error-prone and takes a very long time. Has anyone had experience copying mbox files and managed to do it successfully? I would be very grateful for any advice.

I changed my password and added a PIN to my gmail account and even thought I get the prompt and allow access it doesn't work and keeps asking for it again. Say that it's the wrong email or password. I did delete the old password in the stored passwords but it didn't help. Whether I use my password or the PIN when connecting to google and then chose to allow access to Thunderbird it just keeps asking to grant access again.

Hello Thunderbird. I have used the product for years across Win95, Win7. I have graphics trouble with Win10 after an update last year. Some times the email text has strange colours and the odd missing character. Opening an attachment always has funny yellow or green chunky background. Zoom +/- cures this. See attachments. The display driver is AMD Radeon graphics. 504MB used. Single screen. The processor is AMD A10-9700 Radeon R7, 10 Compute cores. 8GB RAM The machine is a standard out of the box HP Pavilion PC 570. ON thunderbird no extensions or themes. Hope you can help! Thanks Mike

My recollection is that prior to a recent automatic update to Thunderbird 140.12.1esr (64-bit) when I had a message composition window open, there were "SEND" button and possibly a "SEND LATER" button (to the left of the addressee and cc addresses in addition to the keyboard shortcuts (CTRL ENTER and CTRL SHIFT ENTER).

Following the update, there is no longer anything to the left of the addressee information. I have checked the toolbar menus, and there do not appear to be any button options. I can still send messages, but the lack of the buttons is a hindrance.