Thunderbird Support Forum

I made a backup of the email, but now when I try to restore the backup, it gives me the error "Unable to open the summary file for Inbox on email@example.com. Perhaps there was an error on disk, or the full path is too long."

I did the repair folder but the error shows up again, I reinstalled thunderbird, the error is the same again.

Can someone tell me how to do a restore backup?

Thanks

Thunderbird can't seem to remember who I am! For the past year or so, every few weeks, I open Thunderbird to find that it doesn't know who I am. My entire account has seemingly disappeared! The first time this happened, I nearly lost it. I thought everything was gone. After doing some research, I discovered the likely problem was that the prefs.js file in my profile folder was corrupted. Going back to a backup (thank goodness for backups!) and copying an older version of prefs.js to replace the corrupted one fixed the problem - all my emails and folders were back as they were before. Whew! Until it happened again. And again, and again, and again, etc., etc.

Since this is a well known problem (I found the "fix" noted above in Mozilla help), I assumed at some point there would be a permanent fix. But several iterations of Thunderbird have come and gone since then and the problem remains. I have used Thunderbird for nearly 20 years, and have loved it. But if I don't find a solution for this problem, I may have to abandon the platform. I can't afford to have my email client forget me every few weeks. Resetting the prefs.js file takes time, and alarmingly it doesn't always work! A few times I found my backup prefs.js also failed and had to rely on an even older backup which can sometimes be problematic if I changed any settings in the interval in between. I REALLY hope someone has found a more permanent solution to this issue! If you have, please post it and let us know where to find the cure for Thunderbirdheimer's!!

I've been through all related articles in this forum to try to resolve this issue, as the popup keeps popping up.

This is what I've checked and did; 1- Checked Outgoing server (SMTP) settings - No trace of account there. 2- Produced a 'Troubleshooting Information" report; Nothing under 'Mail and News Accounts' 3- I've deleted my Calendar and made a new one. 4- Got HostGator on the phone and they confirm that my account is close and files deleted.

And it is still not resolved. Anyone knows how to resolve this issue ? Thanks

Yesterday I downloaded Thunderbird to Windows 10 (64-bit), added my Office 365 (for work or school) account, rocketmail account and iCloud account. I created unified folders for the three accounts. I have downloaded the TBSync add-on with the required CavDev (?) one to connect my iCloud calendar.

After successful use the first few times, now Thunderbird becomes unresponsive within 5 seconds of opening, every time, rendering the program unusable.

Troubleshooting mode does not fix the problem, so I assume it's not the add-ons, nor does starting my PC in Safe Mode (F4 at startup ie no networking), so I assume it's not antivirus.

I uninstalled Thunderbird and re-installed from the website today. All my accounts were there (so I wonder if the uninstall didn't work properly, although I assume that it's just the files left on my computer that the new Thunderbird installation is accessing).

All these attempted fixes leave the problem unchanged: the window freezing within seconds of opening.

Because the program becomes listed as 'not responding' and greys out on further clicks, I have to hard-close the program using Windows, selecting 'Close the progam'. Clicking 'Wait for the program to respond' leaves the screen greyed out, and nothing changes for at least 20 minutes (the maximum I've tried waiting it out). This also means that it does not yield a formal crash report, because Thunderbird does not recognise it has crashed.

On one occasion it did create a crash report, which I submitted. I am not sure what behaviour allowed this to happen, and I have been unable to reproduce it. That particular crash ID was as follows:

Crash ID: bp-41096385-eebe-4ccc-a47e-f76300240417

Any help much appreciated! I'd love to stick with Thunderbird if possible.

Howdy, I have a number of folders under my POP email account folder. I moved a couple of them to the local folder using drag and drop. It seemed to be going OK but when I went to double check the content, all the messages where gone. I could not find them in trash nor were they in the "from" or "destination" folder. The only things that were saved were the folders and subfolders.

This seemed like a simple move operation but it has gone very wrong. Any ideas why?

I have backups. Can someone point me to the procedure to recover specific folders in email?

I have been trying to search for a solution but have not been successful in even finding this issue.

This is on a Win10 PC running 115.7.0 (64-bit) version of Tbird.

Thanks!

I have been using Mozilla email for years, but since yesterday when I try to send email I get this error message:

Sending of the message failed. An error occurred while sending mail. The mail server responded: sender rejected. The email address you are sending as must match the email address you used to auth. Please check your SMTP settings. AUP#Out-1500. Please verify that your email address is correct in your account settings and try again.

I have not changed any settings, and did verify the account settings.

I've had Thunderbird running for a few years now without any issue. Last week I upgraded from Ubuntu 22.04 to 24.04 and ever since that I've been having problems on Thunderbird sending email.

I can receive mails fine but if I try to send emails from any account I get "Sending of the message failed"

I've for 2 Outlook.com accounts and one gmail.com account and all give issues.

GMail I'm using: smtp.gmail.com Port 465 SSL/TLS OAuth2

Outlook: smtp-mail.outlook.com Port: 587 StartTLS Auth: Normal Password.

These settings have worked fine before the upgrade so think there is something broken my TB.

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

Im using Thunderbird Beta release. Starting last week, my PC would become extremely slow, to the point it would nearly come to a complete halt. After digging around, I realized it was due to excessively large Thunderbird NSTMP files that were being created. I would delete them and the speed would improve. But then a while later, the NSTMP files reappear and gobble up all my Harddisk again. Part of the issue is the sheer large size of the file, which will consume all available space on my HD, which at present is 600GB. But it also eats up all my RAM so my system slows down til the NSTMP file is fully built.

I use this as imap with Gmail installed on a PC with a 1TB SSD

Today after my pc started slowing again, I started poking around and noticed my main Inbox is massive, 29GB, which there is no chance its that large. All Mail is only 1GB to give perspective

This has been going on about a week.

I tried repairing my inboxes and other folders, but that does not seem to have helped.

Thunderbird has crashed three imes in one day:

Crash Reports for the Last 3 Days Report ID Submitted bp-9c6073e7-09c0-4e42-b775-1ceba0231222 2 minutes ago bp-48791da4-8c79-4313-b918-d2b990231221 7 hours ago bp-0c940712-2c05-475a-b9ca-358280231221 9 hours ago

After years without problems, Thunderbird suddenly started locking up when I try to insert an image into a new message. There is no error alert; the message just completely locks so that I have to force task to end. Until a couple of weeks ago, I was able to insert files stored on my computer or copied from browser with no problem at all. [Not talking about a signature, just an image. Emojis work fine]

Am not aware of changing anything. Running Windows 11 Home version 23H2, if that helps anyone explain what's happening. Thunderbird version 115.5.0 (64-bit)

Haven't tried un/reinstalling TBird as want first to see if there's an easier solution (have several accounts).

My computer crashed, I restored it but Thunderbird is no longer working. Every time I try to use it I get the following error message: "Error with account xxxxx. Sending of password did not succeed. Mail server pop verizon.net responded (SYS/TEMP) server error, please respond later"

When I start T'bird in normal mode, I get what you see in picture #1. Notice the custom menu bar at the top. I can still receive emails into the Inbox (but can't see or access them), and I can write an email, access the Address Book, Calendar, etc.

When I then start in Safe mode, with Shift key down, I get what you see in Picture #2. Notice that the custom menu bar at the top is gone. I have to recreate it every time I shut down and restart T'bird. That is unacceptable.

Please advise what I should do to correct this situation. If I can't, then I'm through with Thunderbird (after some 15+ years).

Many thanks, Robert Hawkins

Dear Mozilla Support team,

I hope this email finds you well. I am writing to inform you about an issue I am currently experiencing with my email account. While I am able to sign in and receive emails without any problems, I am unable to send emails.

Below, you will find my email configuration settings. Could you please review them and let me know if there is any issue or if I need to make any adjustments?

Please provide me with information via email at thu@globalvision.ch and thuha4210@gmail.com. In case I don't receive it.

Thank you for your prompt attention to this matter.

Best regards,

Just a day or two ago a thunderbird screen pops up when I open my mail and wants me to log into my google account but does not allow me to. Its oversized and does not allow reforming it either. When you click on next it goes to another screen that says ----- GOOGLE 400 That's an error. Then a couple lines later it says --- The server cannot process the request because it is malformed. It should not be retried. That's all we know. --- ( the dashes I added to break up each line)

     So it takes using the ESC key to remove it off the screen, but eventually pops back up. I have to use end task to remove it all together but again when I open mail it returns.  I tried to upload a screen shot to you but it kept giving me an error message.
    I hope you can correct this problem. Yes I did reboot incase it was a computer problem. Thank you for your time and I hope you can fix this matter. I seen in the forum some were having similar issues but did not see my exact problem.

I am getting a non-overridable TLS error when Thunderbird opens or when I attempt to download new emails (the emails will sometimes download later after I force a download. I have tried to change my TLS version without success. Please help me solve this issue.

My email setup is to an IMAP server (POP will not work with Gmail.com accounts). See my attached image files for further information.

Actions causing issue: 1. Select ~100 messages in a folder on an account of a particular mail provider. 2. Drag selected messages into a folder of an account of a different mail provider.

Result: Thunderbird very slowly moves the messages. It then almost grinds to a halt, regularly showing "Not Responding" and losing window border characteristics (goes white [in Dark Mode]). It indicates in the messages area that it is downloading messages from the original email account. It continues like this for HOURS. It becomes unusable. Even the simplest tasks freeze up.

In the troubleshooting info below, account3 is the original account and the destination account is account7.

Any advice, rectification greatly appreciated. Thanks.

Troubleshooting Info [Most account names made generic for privacy]

 Application Basics

   Name: Thunderbird
   Version: 115.6.0
   Build ID: 20231215200246
   Distribution ID:

   Update Channel: release
   User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:115.0) Gecko/20100101 Thunderbird/115.6.0
   OS: Windows_NT 10.0 19045
   OS Theme:

   Launcher Process: Enabled
   Multiprocess Windows: 0/0
   Fission Windows: 0/0
             Enabled by default
   Remote Processes: 1
   Enterprise Policies: Inactive
   Google Location Service Key: Missing
   Google Safebrowsing Key: Missing
   Mozilla Location Service Key: Missing
   Safe Mode: false
   Memory Size (RAM): 31.9 GB
   Disk Space Available: 31.4 GB

 Mail and News Accounts
   account1:
     INCOMING: account1, , (imap) mail.Provider1.com:993, 3, passwordCleartext
     OUTGOING: , mail.Provider1.com:465, 3, passwordCleartext, true

   account2:
     INCOMING: account2, , (none) Local Folders, 0, passwordCleartext

   account3:
     INCOMING: account3, , (imap) mail.Provider1.com:993, 3, passwordCleartext
     OUTGOING: , mail.Provider1.com:465, 3, passwordCleartext, true

   account4:
     INCOMING: account4, , (imap) mail.Provider1.com:993, 3, passwordCleartext
     OUTGOING: , mail.Provider1.com:465, 3, passwordCleartext, true

   account5:
     INCOMING: account5, , (imap) mail.Provider1.com:993, 3, passwordCleartext
     OUTGOING: , mail.Provider1.com:465, 3, passwordCleartext, true

   account7:
     INCOMING: account7, , (imap) mail.Provider2.com:143, 2, passwordCleartext
     OUTGOING: , mail.Provider2.com:587, 2, passwordCleartext, true

   account8:
     INCOMING: account8, , (imap) mail.Provider2.com:143, 2, passwordCleartext
     OUTGOING: , mail.Provider2.com:587, 2, passwordCleartext, true

   account9:
     INCOMING: account9, , (imap) mail.Provider3.com:143, 2, passwordCleartext
     OUTGOING: , mail.Provider3.com:587, 2, passwordCleartext, true
     OUTGOING: , mail.Provider3.com:587, 2, passwordCleartext, false

   account10:
     INCOMING: account10, , (imap) imap.gmail.com:993, 3, OAuth2
     OUTGOING: , smtp.gmail.com:465, 3, OAuth2, true

   account11:
     INCOMING: account11, , (imap) outlook.office365.com:993, 3, OAuth2
     OUTGOING: , smtp.office365.com:587, 2, OAuth2, true

   account12:
     INCOMING: account12, , (imap) outlook.office365.com:993, 3, OAuth2
     OUTGOING: , smtp.office365.com:587, 2, OAuth2, true

   account13:
     INCOMING: account13, , (imap) outlook.office365.com:993, 3, OAuth2
     OUTGOING: , smtp.office365.com:587, 2, OAuth2, true

   account14:
     INCOMING: account14, , (imap) mail.Provider4.com:993, 3, passwordCleartext
     OUTGOING: , mail.Provider4.com:465, 3, passwordCleartext, true

   account15:
     INCOMING: account15, , (imap) mail.Provider1.com:993, 3, passwordCleartext
     OUTGOING: , mail.Provider1.com:465, 3, passwordCleartext, true

 Libraries

     Library
     Status
     Expected minimum version
     Version in use
     Path

     RNP (OpenPGP)
     OK
     0.17.0
     0.17.0+PR2073.MZLA.115.6.0
     C:\Program Files\Mozilla Thunderbird\rnp.dll

 Crash Reports for the Last 3 Days

 Remote Processes

   Type: Count

   GPU: 1

 Security Software

   Type: Name

     Antivirus: Microsoft Defender Antivirus
     Antispyware:
     Firewall: Windows Firewall

 Library Versions

     Expected minimum version
     Version in use

     NSPR
     4.35
     4.35

     NSS
     3.90.1
     3.90.1

     NSSSMIME
     3.90.1
     3.90.1

     NSSSSL
     3.90.1
     3.90.1

     NSSUTIL
     3.90.1
     3.90.1