Thunderbird Community Forum

I've used Thunderbird with the Owl add-on for Exchange/Outlook accounts for several years. Recently I've found when I open Thunderbird on my laptop, a tab opens for each account, apparently showing the Outlook web page for each account. This is great, but on the same version of Thunderbird (140.3.1esr) on my desktop, that doesn't happen. I can't see how to open these tabs there, or even how to reopen one of these tabs on my laptop, except from Go->Recently Closed Tabs. Am I missing something? What controls this behaviour?

Most of my Comcast Mail is going directly to Trash. Many of these e-mails have a green dot. What does this green dot mean? Why is all this happening? I don't have a problem with Outlook Mail or GMail?

Jag behöver hjälp med att Thunderbird inte längre fungerar vid lagring av mail. Varken till Arkivet eller Skickat mappen. Alltså jag kan inte se om jag skickat ett mail. Roland H

hi, my emails are set never to delete but they are disappearing after three weeks. If I scroll down today, I can't see any emails before the 16th of September. If I know what I am looking for, the emails appear in the search function. Does anyone know why they are not in the inbox? My settings are set so that emails never delete.

This issue has been confirmed on 140.3.1esr (64-bit).

When adding a new account via IMAPS/SMTPs connection, if it's the first time saving a draft or sending an email, the emails do not move to the Drafts or Sent Items folders as expected. Instead, they move to a newly created folder in the Local Folders. Furthermore, the special folder settings in the account configuration automatically change to point to the Local Folders instead of the connected IMAPs folder.

Testing with Thunderbird 128.14.0esr did not reproduce this issue.

I suspect this issue might stem from a mapping problem with Japanese folder names in the Japanese localization. (e.g., “下書き” as “Drafts”, ‘送信済みトレイ’ as “Sent”, etc...) Alternatively, could this be a change in behavior?

Thank you for your assistance.

Translated with DeepL.com (free version)

Hi Folks,

I want to seek opinion on how to manage the virus detected in emails (or its attachments) through Kaspersky Anti Virus.

I have large no of emails in TB stored in mbox format. Around 30GB in Inbox and another 5GB in Sent, etc. I also use Kaspersky Internet Security which has anti-virus also active.

Now my anti virus detects some infected emails. How to clean the infected virus emails / attachments.

Question: 1) When using mbox file on TB, is Kaspersky capable to delete ONLY a single specific infected file from the entire mbox data without any corruption of mail data? 2) If not, how to setup the anti-virus to automatically clean, disinfect and delete/quanrantine individual mail. ?

3) Is MailDir a better way to save emails in profile and use anti-virus. There is a warning on Maildir saying its still not settled and may have bugs. Is that true even today ?

Thanks & Regards, Tejas

Can anyone please help me? I use Thunderbird email and for several weeks now I have been able to receive emails but not to send them. At first outgoing messages were refused with the messages "rejected by outgoing server." The outgoing server is PlusNet. I sought help from PlusNet and after several days they told me the problem was connected with their migrating email business to a third party, but was now solved. For a few hours I was able to send messages, soon reverted to the situation where incoming messages are received but outgoing messages are rejected. This time the rejection messages say "rejected due to internal server error." But surely, PlusNet IS the outgoing server? I give up. and PlusNet is hard to contact, they don't seem to accept emails anyway. So can any other TB user advise me, and am I the only one with this problem? PeterB

Thunderbird 143.0.1

My TBird updated this morning and everything turned to crap...

I have TBird set to check for emails every 15 minutes on 4 accounts. There are also 3 accounts that I monitor and check manually...

As soon as the 143.0.1 update touched home base TBird went ballistic. Withing in seconds of it checking for mail on the four accounts it then started deleting the accounts. Any mail was down loaded then poof!! No mail and No mail account. I had to crash dive my laptop to to stop it. Spent 3 hours trying to recover the emails and accounts and managed to reclaim 3 accounts out of the 4 but lost all the emails... After all that effort I was totally peeved and decided to uninstall TBird and revert to an older version... The icing on the cake TBird wont unistall because the YES button on the TBird Helper window wont activate...

After more than thirty years of supporting Firefox and Thunderbird... You have really dropped the ball with this one... As far as me getting an email when someone answers the thread... Good Luck...

Hello,

I have TB 140.3.1esr (64-bit) running on Windows 11. everything works as expected, I love it!

I can't find anywhere that allows me to change the folder's (on the left) font type/style; right now it's all bold style. I was able to change the size but not the type/style.

Does anyone know how to do that, please?

Thank you

I have been using Thunderbird for a few months and changed my Google Password(even though Im not quite sure if the error wasnt already occuring before that), but now when I go on Thunderbird it gives me a popup window that says "Enter credentials for name@gmail.com on imap.gmail.com". Theres a field for the email-adress, but when I click "Next" theres the following error: "400. That’s an error. The server cannot process the request because it is malformed. It should not be retried. That’s all we know."

These are the things I tried: Entering the old or new Password. Checked if the config is set to OAuth2 in both incoming and outgoing servers and enabled on Gmail-Account. Deleted and tried to (unsuccessfully) reregister my Thunderbird-Account. The same error pops up when it checks my password after the configuration.

I dont know if the password change is actually the cause, since I think I remember the error message appearing earlier today, before I changed the password, but Im not sure. Also, I have another account linked to my Thunderbird, with no changed credentials, and while there is no similar error message, thunderbird suddenly also has problems connecting to it and asks to retry a few times (3-4) before actually connecting everytime I open it.

I suddenly cannot send e-mails, as an alert appears that says I have to change my message in that what I am sending might be a scam or questionable, which it never is. Also, all of my new e-mails are going to "Archive" and always has gone into my InBox directly, until now. What is going on, and how can I change it?

Dear Thunderbird Support Team,

I am reaching out for assistance with opening .tmp files that originate from Mozilla Thunderbird. These files are approximately 650MB in size and contain copies of my text messages, which I would like to recover.

Unfortunately, I no longer have Mozilla Thunderbird installed, and the .tmp files do not open in any other text editor. I would appreciate any guidance or help in retrieving the contents of these files, as it is crucial for me to access these messages.

Thank you in advance for your help.

I am attempting to set up Thunderbird on my desktop. I sign in and only very old email load. I am not sure how to proceed. Outlook is online only now, I need Thunderbird so that I can scan to email.

I used TB for many years on several computers. Last week, I had to reinstall TB on a Win 11 computer, and tried to migrate my TB profile from the Win 10 computer. However, this is an ongoing problem. After several attempts, I have a TB profile on the Win 11 computer that seems to look OK. However, when I open TB, not all the local folders appear in the TB Local folders menu. I read several discussions and guides from other TB users, and tried the suggested fixes. They did not solve the problem. The Local Folders exist in the profile in the Mail folder. When I open the Local Folders, I can see all my local folders that were copied from the TB profile on the Win 10 computers. These include .mozmsgs and .sbd folders. When scrolling down in the Local Folders, after the .mozmsgs and .sbd folders, I can see pairs of folder names w/o extensions (the open with notepad and contain text) and files with the same names but with .msf extensions.

So, theoretically, all the local folders should show up when opening TB. But they don't.

At this stage, I don't know what to do, and I would appreciate your help.

Thank you.

Ted

The new machine is not quick to send a post to junk or trash. I see a message about downloading it before I see it move. Going over settings comparing both, old machine was set to a Pop mail server. The remote helper changed that oh New one to IMAP Mail server. I'm assuming that is the problem but I can't find how to change the new setting from IMAP to POP. There is a red Delete button on the A/C settings page. Should I try that?

Also since I couldn’t use the profile from corrupted old machine I've manually input everything in the new. I have used the Draft files in the old machine as a sort of reminder for me and want to copy it and bring it Into the new machine. Is there a way to do that?

I hope this is concise enough.

Stacy

Hi, I have tried multiple times to log into my thunderbird account. Every time it says sending login link . I never receive it. Making it impossible for me to access my account

This error message keeps popping up many times a day and is very annoying. I notice that others are getting the same error message but haven't found a fix for it. See image of the whole error message attached.

The weird thing is no matter which of the 3 options I choose it keeps coming back... sometimes within a few second. Also it doesn't prevent me from getting my email. Really odd.  ???

Anyone find a fix yet? Thanks.

Hallo,

in an effort to understand why one s/mime signed message I received could not be verified by Thunderbird (140.3.0esr (64-bit) on Ubuntu 24.04.3 LTS) (error 1041, "unknown problems with this digital signature"), but by all other clients I and others could check (including cli tools openssl, cmsutil), I did a few tests using my own certificate (using rsaEncryption, SHA256).

Inital observation: Messages signed with "openssl smime -sign -in msg.txt -to <email> -from <my-email> -subject test -signer mycert.pem -inkey mykey.pem -out signed.eml" and opened in Thunderbird showed error 1041. Any modifiers like -crlfeol, -text, -binary, ... did not make a difference.

Omitting signed attributes (-noattr) however helped. The signature was verified.

Looking at the signed attributes, nothing seems wrong: hash in messageDigest is correct, sha256 and rsaEncryption is given. Checking more carefully the signature, the hash of the attribute section is also correct. Manually verifying the DER attribute section with the given signature is also fine.

The question is, what is the reason that Thunderbird rejects the signature? I didn't manage to produce a log output of the verification, so this general error 1041 is all I have. Is Thunderbird more strict as openssl? And if so, at what point?

The only point I see where there could be a problem in handling the attributes is the header of the DER attribute section. In the full signature this starts with 0xa0, as stand-alone block it should be 0x31 - only then the hash matches. However, that's wild guessing.

Any ideas? Already some info on how to access a log output on the verification would help.