Thunderbird Community Forum

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 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.

This just started yesterday: When I open thunderbird my inbox does not show up unless there is a new unread email in it. Also my previously set display columns and tool bar all have to be reset each time I open Thunderbird.

My local Thunderbird program (159.0 (64-bit) on Windows 11) is set to auto-install updates. Upon the update completing earlier today, the inbox and other folders were completely empty. They remain so following a program & computer restart, and also opening the program in troubleshooting mode. I have checked the following: - logging into the online mailbox directly works, and shows all emails - sending a new incoming email to the email address does have the email show up in the remote mailbox but not the local mailbox - sending a new outgoing email from Thunderbird does appear in the local Sent folder, as well as on the receiving email account - the local Thunderbird instance is still able to connect to the IMAP Mail Server (mail.talktalk.net) - the following settings are configured, and I believe haven't changed since prior to the update:

 - Check for new messages at startup is **enabled**
 - Check for new messages every 10 minutes is **enabled**
 - Clean up (Expunge) Inbox on Exit is **disabled**
 - Synchronization & Storage: Keep messages in all folders for this account on this computer is **enabled**
 - Synchronize all messages locally regardless of age is **enabled**

I have ~100gb of space available on my hard drive

I'm not sure what other settings might be helpful. Please let me know if there's anything else I should add.

My issue has two parts. The first is that I want new emails to appear in my local email client upon arriving, as they did previously. The second is that I want to have the full set of emails on my remote account available locally, which is currently no longer the case. There is also no sync activity happening, and apart from establishing the initial connection to the mail server I can't see any activity in the bottom left corner.

cannot seem to send emails to multiple people without going thru mail merge. I can no longer type the persons name in to: field and it will not autofill. I tried to go to calendar function and got a blank screen.

Can I go back to a previous version?

Whenever I start my PC, the first time I click on the Thunderbird icon at the bottom of my screen (is that still called the taskbar?) I have to click on it a 2nd time to get it to open. After that I only have to click on it once. Does anyone know I can get it so I only have to click on it once the first time as well as understand what may be causing this problem?

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.

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.

The instructions at http://mzl.la/1ApHx1w did not help. FYI: I have TWO "Spam" folders?!?! Could this be the problem?

I just updated to 159.0 TB seems to have a new annoying behavior. I have reproduced it on two different PCs.

I enter an address, then tab to the subject, and then the next tab should take me to the field where I can start typing my email. Instead it takes me to two horizontal blue lines just above that field. See image. The next tab takes me to the field where I can write. It's not a big problem but a new minor annoyance.

Thoughts? Am I missing something?

I want to connect Thunderbird to an Office 365 calendar. All of the help files I've found point me to TBSync, but when I try to get that using the Add-ons manager it says that it's not supported in version 159. Is there another approach I can use? Thanks!

Hallo,

ich bitte um Hilfe, seit dem letzten Update von Thunderbird auf 159.0 (64-Bit) sind meine Mailaccounts verschwunden. Eins konnte ich wieder einrichten, das von T-Online bringt als Fehler ständig "Fehler bei der Authentifizierung" obwohl alles korrekt ist. Thunderbird kann sich automatisch die Serverdaten für IMAP holen, aber sobald ich das Passwort eingebe kommt der Fehler. Das Passwort habe ich jetzt bereits geändert, dennoch funktioniert es nicht. Was kann ich tun?

I followed the instructions in the aritcle on the search page and it still didn't work. I worked with Geek Squad. They completely did all kinds of different settings and they all failed. When I click the test button, it says it connects successfully.

It tells me to retry or update the password.

I am absolutley typing in the correct password.

The functionality for moving individual folders in a Thunderbird email account to network locations is missing. Similarly, moving the entire mailbox to a network drive does not work correctly. This is needed to free up resources on the local computer. In our case, the 500 GB SSD is occupied by a 350 GB mailbox.

I already have Gmail linked to Thunderbird on Windows but now have a Linux computer. When adding Gmail, I am taken to Google's website as expected which grants authorization after satisfactorily logging in. I'm sent back to Thunderbird that then displays Authentication failure. There seems to be no way around this despite looking for any Google credentials in saved passwords. Thunderbird has added other mail accounts with no problem. Google will show that my Linux computer is linked but Thunderbird rejects any attempt to sync with Gmail. I'm wondering if there remains any Google data within T'bird that is corrupted that needs to be cleaned out to start over fresh.

When upgraded to 159, I seem to have lost the icon change in the tray that there is new mail. Still get the Windows push notification, yet that does not suffice with the volume of mail we receive. Any suggestions?