Thunderbird Community Forum

I reset my Windows10 computer last week, reinstalled Thunderbird and got it to work as POP3 for about 5 days, but now it won't connect to my e-mail account (@prodigy.net), which I normally access through Yahoo Mail. Then on Wednesday, it just stopped working.

Last week I had to enter a passkey in as the password, but it still needed to be set as a "Normal Password". This week I have tried the same passkey as "Normal Password" which doesn't work. I tried using the passkey but specifying "OAuth2", and it doesn't work. I have tried the "Normal Password" with the password I use to get to the Yahoo Mail account on line, and it doesn't work either.

The message I get is "Authentication error" and "Unable to log in at server. Probably wrong configuaration, username or password." So, I thought I might change the passkey, but now I cannot FIND how to change, remove or create a passkey. Not at Yahoo.com nor at att.com. Can you help me? Thanks, Deb Fisher

My TB installation got corrupted due to a hardware/disk issue. On restoring it from backup TB keeps trying to download all messages again. I know this is something to do with the popstate.dat file but I can't seem to stop it. What do I need to do?

Also, I had never noticed this before (because I never looked at the TB file system) but TB created multiple folders for the email account.pop.mail.yahoo-1.com up to pop.mail.yaho-4.com. Why does it do this and is there a way to get back to just one file? Is this something to do with TB crashing or what?

Is it using all of these files or just the latest and how do I know? All of these folders have a popstat.dat file and one has multiple following the popstat-1.dat etc.

I've no idea how to recover from this. Any help would be much appreciated.

I was not able to boot up my Thunderbird email client and had to reload it. But after I got it going, I realized there are many missing folders, and there is a lot of missing messages in my "sent" folder. Why?

Over the last couple of days the general appearance / layout of Thunderbird has changed for me. I have attached a screenshot of how it appears now, previously under the 2 talktalk e-mail addresses I had a number of additional folders I also, under SPAM, had spam folders for each e-mail address, in fact I had 2 for each of the talktalk addresses.

I first noticed the changes yesterday but after shutting Thunderbird down I got most of the old layout back, but today I see only what is in the image.

Is this some sort of an update or has my installation been corrupted in some way.

I have several email accounts in Thunderbird where the email address no longer exists, at least on the specified IMAP server. Thunderbird is configured to not attempt automatically getting mail for these.

I had used Thunderbird 102 on Windows 10 for years, and in that version, my mail was kept in Thunderbird for those accounts (though whenever I opened any folder in them, I was somewhat annoyingly prompted to enter my credentials since the connection to the server was failing). To copy my profile folder to a new Linux installation, I updated Thunderbird to 153.5.1esr, the same version running on Linux, as Flatpak. My mail is still kept in Thunderbird on Windows, but with the same profile on Linux, Thunderbird "hid" all folders from the offline email accounts (apart from an "Inbox" folder that is shown as empty): the files are still there in the profile directory, and Thunderbird seems to find relevant emails in search, but opening them leads to a "No mail found" screen, and there is no way to access this mail from the folder pane. How can I make Thunderbird see my mail again?

As if that was not enough, on a whim I decided to attempt the "Repair folder" option on my Windows instance of Thunderbird, where the folders were still being shown normally. I immediately regretted not having made a backup of my profile (I only have one from version 102, where the data was apparently stored rather differently), since this just deleted all mail in the selected folder entirely, with the relevant file in the profile directory being empty. (The file seems to be somewhat different on Linux too, since copying it back to the Windows profile did not restore the mail in Thunderbird, and I would probably have to copy my Thunderbird 102 backup into an install of Thunderbird 102 and manually upgrade to my/the newest version to get it back.)

I know local folders would never be deleted like this, but there does not even seem to be an option to move an entire mailbox into a local folder, other than manually. It does not appear like Thunderbird has proper support for mailboxes that are no longer available. It would be undesirable to have all my mail in some new mailbox lost in the same way after I lose access to it. (Local folders would not really help in this situation either, unless you plan out exactly when your mailbox goes offline.)

My Thunderbird installation (159.0/Windows11) has evidently just updated, and my Calendar tab is suddenly a complete blank space. There's a support article here that appears to discuss exactly this situation, and gives precise steps for getting into "Config Editor" in Advanced Settings, entering a long search string, and issuing a Reset command. (Mail and contacts are just fine.)

Which I tried...

But there is no "Config Editor" button in the dialog I get when clicking Advanced Settings at the bottom of the Settings tab, only a mostly blank screen with no list of settings and a dialog box in which one can enter text (with options for "Boolean", "Number" and "String"). And entering the search string given in the support article produces, with a bit of finagling, a toggle that will change its setting from True to False and back again (and a trash-bin icon that offers to delete it), but neither "True" nor "False" produces any instance of a "Lightning" extension in my list of extensions (which is short and uncomplicated), so (a) I can't delete the extension as instructed, because it's not there, and (b) restarting Thunderbird only continues to give me the unhelpfully blank Calendar tab. (And I do mean "blank" here - there isn't even an empty calendar grid on that tab at this point.)

I *think* the article is probably right that my data is still there (I can see .ics files with current dates in File Explorer), but at this point I can't get at it and can't seem to get the interface unstuck.

Since yesterday , Thursday 29th October. Thunderbird has only been displaying the "Inbox" for my account, no emails are visible in it and all of the directories including the deleted emails directory and spam directory are absent. I have Windows 11 installed. I am using the IMAP server for incoming email and have checked that all the settings are correct. My account displays no incoming emails but can send emails. The directories are still absent when running Trouble shooter and the inbox is still empty. In the Account Settings - Server Settings I tested connection to the server and it said secure connection made - this worked for both outgoing and incoming servers. I have tried uninstalling and reinstalling Thunderbird but the issue persists. Although I do not change any settings the full set of directories will occasionally appear along with some emails and then seconds later disappear again. My email account is working fine on my phone and tablet using gmail.

I used to have a corporate Gmail account but a colleague has taken it over and changed the password I removed it from my thunderbird win10 app by selecting it and deleting it in the normal way and all the folders have gone But every time I launch the app on my pc it asks me for a password for the deleted account, then launches a chrome browser page and asks me to log in to my colleague's Google account I've tried deleting thunderbird and reinstalling but this still happens, as though the account details including the deleted one are still stored somewhere on the PC. I have 4 personal email accounts and I use the unified folder facility Can you help?

I have 5 accounts. Since the update when I start Thunderbird, some accounts appear in name only with no folders. Then, if I exit then enter again the tabs may appear and the Thunderbird sets about resyncing them all. Help please.

I've been using Thunderbird for a good while now and love it. One thing that I find very frustrating though - it doesn't auto capitalize, such as A and I (one word). Is there any way to make it do this? Thanks

Nach Aufrufen der Startseite werde ich aufgefordert "geben sie ihr Passwort für '[redacted]@t-online.de' ein. Das habe ich aber vergessen. Danach erhalte ich die Meldung, dass die Anmeldung fehlgeschlagen ist. Nachdem ich versucht habe, gespeicherte Passwörter aufzurufen, werde ich aufgefordert, eine PIN einzugeben; die kenne ich auch nicht. Es ist zum Verzweifeln!

Hi,

For both servers imap.exmail.qq.com / imap.263.net, when I click on the email subject in the email list during downloading processes (many emails headers are being downloaded but email body downloading is not completed), the email is broken without any content (only header).

I go to the web email server and move the email to another folder and then move it back to inbox. Then I delete the same email in Thunderbird and donwload again the email again, it's completely downloaded with the email body.

I don't have any issue with eM client or Outlook for such issues. Any possible setting to solve this issue?

Thanks.

Mail folders have disappeared in Thunderbird for Mac version 158.01. I replaced the files with the folder name, along with the accompanied .msf file from a backup, but the folder is still not showing up. Please help.

When I attempt to send an email in Thunderbird I get an extensive string of gibberish that I have to delete before I can send the email. What can I do to get rid of this huge irritation? Thanks

I send an email and I get this response as a failed send. Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: resomta-a2p-646964.sys.comcast.net ESMTP server not available (396356/173.46.82.217).

I'm not receiving any emails in my Thunderbird inbox, though I'm able to send messages (but they're not being saved to my sent folder). Connection to my server keeps timing out. Also it looks like I accidentally deleted all the messages in my inbox -- no messages are currently showing when I open the inbox. I think I did this by "repairing" the inbox folder.