Thunderbird Community Forum

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.

Thunderbird just updated itself to a state where I need to do the setup process manually, which always takes a few hours (with networksolutions as the host). How can I continue to work with the previous version until the bug is fixed or I have time to go through the entire complicated process? Thanks in advance, Knut

I was using MS outlook and recently I could not connect. Apparently ATT made a change so that instead of a password you need a Secure email Key. Since I needed to make a change I thought I'd try Thunderbird mail, but I still need the KEY. After a number of efforts with the ATT AI and human support people I could not find where the Key is entered on ATT. Now I know this forum is about Thunderbird and not ATT, but there must be Thunderbird users that have ATT and have made a seccussful connection. There are a few ATT help pages that outline how to do this, but each time I look at my ATT profile I can not find where to enter the Secure Mail Key. Is there anyone that can help me with this? THanks Mike

Hi. I have recently compressed thunderbird which has wiped two servers. I have three pop accounts on thunderbird. I have a functioning email service on the machine that I compressed but another machine and my smartphone have no emails. I have checked on the servers to confirm they have not archived or trashed my emails but everything is gone. How can I reload the servers from my only good copy?

Suddenly, my "main" comcast account is no longer accessible via Thunderbird. I have three accounts set up: two comcast and one gmail. The gmail and one comcast account appear to be all right. When I try to access the comcast one I call main, I receive the window shown in the uploaded image. It seems as if TB has somehow forgotten the way it accesses "main" accounts. I have verified that the "main" account is fine on the comcast server by logging into it. The question is if I remove the TB "main" account and recreate it, will I lose any messages? Is this likely to correct the issue?