Thunderbird Community Forum

After updating to Thunderbird version 115.12.2(32 bit) two days ago, I can no longer send emails. I get an error message "Authentification error (VM401)" I use Virgin Media. I can receive emails OK. I have not changed any server settings for a long time. I have been in touch with Virgin Media, they say the problem is with Thunderbird as I can send emails from on their one line system. I can also send emails from my Android phone. Any help would be appreciated.

I'm going to ask this question again. Has anyone seen this? If so, what does it mean? When attaching a pdf or other file to an email, I can't open it to check it before sending.

C:\Users\***\Desktop\*****.pdf could not be opened, because the associated helper application does not exist. Change the association in your preferences.

What is a helper application and how do I fix this?

Thank you

I keep getting the message that TB can't connect to my server. I am able to go to my server in a Browser window, I have re-entered the password Multiple Times and it still will not connect. What else can I look at? Tony

I select multiple files in File Explorer and select, right click, Send To, Thunderbird, but only one of the files actually appears in the Thunderbird email. It appears that which one shows up as an attachment to the email is quite random. This used to work fine with all the selected files showing in the email, I haven't upgraded anything so far as I know, and I don't think I have changed anything at all. Any ideas most welcome. Incidentally, if I select only one file to send then it works fine; if I select multiple files to send through Outlook, then that works fine. I just cannot send multiple files through Thunderbird. I am using Thunderbird version 115.4.1 (64 bit). I have looked at the issue on Microsoft pages and they are of the opinion that this is a Thunderbird issue, not a Windows one. Thank you for your help in advance. Cheers

After upgrade to v. 115 I am unable to select the login in OAuth2 signin popup. I need to select the option "use an other account" in O365 sign in popup, but this is not more available. I have some shared folders when the mailbox is e.g. shared@domain.com but I need to sign in using me@domain.com as login, because the account is mine, not the shared's one.

I think there is some bug in the url generated when TB starts signin process to Microsoft's OID endpoint, where it is required an access as "shared@domain.com" blocking it.

All was ok until the upgrade.

thanks

I recieved emails from Microsoft to update Authentication to Oauth as support for basic authentication will soon cease. Whilst I have not been experiencing any issues, after following the instructions, also provided here:

https://support.mozilla.org/en-US/kb/microsoft-oauth-authentication-and-thunderbird-202,

I now have an unusable Thunderbird client.

This is because I am having to keep authenticating my outlook accounts (I have about ~100 email accounts). They pop up one after the other for each account.

I believe I went through all the troubleshooting steps but to no joy.

I did notice however, when the "Enter your credentials....." pop up box appears and I go through the motions of authenticating my account and TB against my Microsoft account, the following entry appears under the Settings > Saved Passwords > Saved Logins > "Provider" column for that account:

oauth://login.microsoftonline.com (https://outlook.office.com/IMAP.AccessAsUser.All https://outlook.office.com/POP.AccessAsUser.All https://outlook.office.com/SMTP.Send offline_access)

The credentials include a very long auto generated password starting similar to "M.C533_BAY.0.U.-........"

A couple of things to note now regarding the oauth entry:

1. It possibly does not always get created when re-authenticating 2. After quitting TB and then re-launching TB, it dissapears

So the solution would be to somehow ensure this entry is created and it sticks even after quitting TB, since for those accounts that include this I do not have get the "Enter your credentials....." pop up box.

Is this something TB can investigate?

I changed the password for one of my gmail accounts and now Thunderbird can't access it. It kept asking for verification. When I realized the problem I changed out the '@' but I can't change the password in Thunderbird. New emails are accessible in Gmail and Outlook but Thunderbird doesn't show then and nothing happens when I use 'get messages'. I need to delete the problem account to re-enter it, when I try to add the email address as a new account Thunderbird just says it already exists and does nothing.

I have several Comcast.net accounts that I have set up in Thunderbird. About 2-3 times per week, Thunderbird makes me re-enter one or more of my passwords, only for the comcast accounts. It says Authentication Failure, but I have not changed anything on the accounts, including passwords. Entering the same password works - for a while. Any idea how to stop this?

I posted this the other day and have had no reply or I maybe cannot find the thread. Please help.

I cannot send messages from Thunderbird since it was last updated on my pc. Version 115.12.2 (32 bit). I have checked the server settings and they have not changed in years. I have been in touch with Virgin Media, my service provider, and I can send emails when logged on to my account and not involving Thunderbird. I can also send emails from my mobile phone using Gmail. The issue would seem to be with Thunderbird and this recent update. Please point me in the right direction, bearing in mind I am not particularly computer literate.

To address the 'write auth' error, I followed the instructions given to re-create the email 'from existing' and set the config as POP3. When I clicked Done I got an "error Creating Account" stating that "incoming server already exists." what do I need to do next to get past this?? Please advise. thx

Hi,

I am running Thunderbird 115.10.1 (Flatpak) on Ubuntu 20.04. (no extensions except birdtray) I have 4 email addresses added to my TB, and I like to see all of them together, therefore I am using Unified Folders. When I am accessing Unified Inbox, TB is very slow and basically frozen until it loads this folder (often a pop-up appears that 'TB is not responding'). it takes between 30-60 seconds to load my emails (either on start-up, or clicking on another folder, then going back to Unified Inbox). Every other folders open almost instantly. I have to admit I have a lot of emails in the Unified Inbox (~20K), however the inbox of my main email has 18K, and accessing that folder separately is instant. So any operation, other than opening Unified Inbox, is quite snappy.

This issue persists since I upgraded to v115, even when I did an OS reinstall (also tried installing apt (v115.11.0)).

I have seen this answer: https://support.mozilla.org/en-US/questions/1428374#question-reply however, nothing changed by resetting the folder.

Hi, for some time now (around a month), after a couple of days using Thunderbird, I can not load new messages, can not send new messages, and it basically is nonfunctional. The blue bar down right shows an active process that never ends (for example, "sending message"). All menus and software as a whole are still operating, and there is no crash on hang, but every attempt to load my emails or send data ends with endless waiting (no errors whatsoever). When I try to exit the application, it closes down, but a process is listed in Task Manager. When I kill the process manually and try to start the software again, nothing starts (a new process appears in the task manager), but the software never opens a window or something. Only a full computer restart helps, and everything works again for 1-2 days. I have disabled all extensions and tried even troubleshoot mode. No crash reports...

Я не могу зайти в свою почту на Thunderbird - при входе выскакивает ошибка -на скриншоте прикрепил - до этого я заходил без проблем - пароль и логин вообще ничего не меня - просто в один момент перестало заходить Так же на втором скриншот видны настройки входа- прошу помочь.

Just switching between inboxes can cause up to a 10 second delay with Thundebird "not responding" with the spinning wheel. It has been like this for the last few laptops I've had and through all the updates and I am getting ready to call it quits. I did a performance recording of me just clicking through the different folders and then it locks up on one. You can see it here https://share.firefox.dev/3WlrRi9

I am using a primary gmail imap account, an office 365 imap account, and another imap account from an ISP.

On Win 10 LTSC, CPU: 16 x 11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz @ 2304 MHz 10240 KB Cache, MEM: 65277 MB, 60% (39120 MB) free, GFX: NVIDIA GeForce RTX 3080 Laptop GPU 16192 MB

Hello, I have been using TB for a long time wiht no mayor problem. I recently had a problem with the hosting services of 2-3 of the email addresses I use in TB and when I now open TB I can click once on the pop up (say on cancel), but when the next pop up message appears (with the same message but for another email address) TB freezes.

Thunderbird automatically installed the latest version 115.3.3 onto my desktop running Windows 10 Pro 64 bit but ever since it's really slow. When I start it up it takes 15 to 20 seconds before it downloads any emails - the blue prgress bar in the bottom right hand corner takes that long to finish.

Then, often, when I send even a simple email it takes ages for it to go once I hit send.

Does the new version have lots of bells and whistles that I don't really need and can disable to get it running as it used to? Or is there something I can do to get it working properly again? I'm not really all that technical so simple instructions would be much appreciated.

Many thanks,

Mark

I have 4 different gmail accounts that I use thunderbird to manage, along with local folders. Starting today, I cannot send messages. I get a dialog box with no error codes, underneath is another dialog box showing send progress with the eternal circle. Have rebooted, made sure each account has a unique SMTP server description. Worked fine until today. No updates that I know of.

This new version of Thunderbird (115.12.2) is not the best. The Composition toolbar doesn't exist when typing a new message and I no longer have a menu bar when typing a new message.

Another issue is on replying why do these sideways "V's" show at the beginning of each line of the senders email when replying. Sometimes it will be just a black line all the way down. When I saw those I felt like I had woken up in 1995.

I am using Windows 11 Pro.

Thank you

Running Thunderbird on Ubuntu 22.04.4

A recent update -- 115.8.1 (64-bit) -- has left me with no local folders. They're just gone. Since I regularly archive into a carefully arranged set of those folders, this is a big problem.

I have a backup of ~home/.thunderbird but I fear that the database has been borked. I can delete/reinstall, and then recover an older .thunderbird folder if necessary but hope there is some simple answer to this.

Thanks.

Hello! Since I couldn't find help in the forums, I will create a new question. For about a year now the PC at my work will not open mailto-links correctly. There is no account to select from, the subject has a lock-symbol. The receiver's address is correct though (I replaced it with "address" for the screenshot). This PC is the only one I know with that problem and only with external mailto-links. If I click on an email address inside a mail, it opens it correctly. Thunderbird version 115.11.1 (32-Bit), Win 10

It's pretty impractical, so I am hoping for help. Thank you!