Thunderbird Support Forum

I can't send emails out of Thunderbird but can receive them, not sure what to do? Is there a phone number I can call with Thunderbird for help? I'm not that savvy with all this.

Been using TB for ages - love it - however it has recently stopped receiving emails - what is the cure? Reinstall? New update?

About your message below regarding 'Email me when someone answers the thread' - if the problem is that I am NOT receiving emails? Send a text?

suddenly Thunderbird email stopped working. I keep getting a request to input and change my password and have done that several time. I also have gone through all the steps to ensure all the info was correct and connected properly. My email works fine when I login through the internet. Passwords are correct, connection info is correct. My emails work fine on my phone. I have uninstalled the program but it had no effect. I am using version: 102.0.2 (64-bit)

With just 2 email addresses that I have been using for years, I suddenly get this Undeliverable message when attempting to send emails using Thunderbird:

"The mail client submitted this message with bare line feeds, which cannot be sent via SMTP protocol DATA command and receiving system does not support BDAT"

I can receive emails from the 2 addresses fine, I just can't send to them through Thunderbird. When I sign in to Hotmail Outlook Live I can send and receive to these addresses with no problem.

I'm stumped! Any ideas? Can I reset Thunderbird?

Thanks

Hi, Up to previous version (TB 101), I could send emails to any group from my MacOSX contact list which appeared in send field and I used this all the time to select mailing lists. Now the send to a group fills automatically like before, but sending fails with message "groupname <grouname> is not a valid address" Maybe, if it cannot be fixed soon, and the new address book does not feature MacOSX group sending I wsih to get back to previous version of TB where it worked fine. I attach screen captures, my version of TB is in french language Thank you

Hi everyone, I am far from a proficient T-bird user so stick with me... My C. drive has a massive amount of space being used by T-bird, over 67Gb. My account is the only one on this machine and it is hosted with Inmotion Hosting. I've confirmed with them that they see me as an IMAP account and my settings are IMAP also locally. I did find under settings in Sync and storage a setting for 'Keep messages in all folders for this account on this computer'. The check mark is checked so it will be keeping all messages. Under Advanced (to choose which folders are 'kept' locally, there are options for all of my folders, some are back to 2014. My question is if I uncheck this box so that the files are not kept locally, will it for some reason expunge the files from the servers within Inmotion? My hesitation is due to talking to them about 14 months ago and I was given erroneous info on POP vs IMAP and subsequently some emails being lost on a corrupt PC. I'm a bit gun shy to execute the unchecking and then the delete of the huge local file.

File path is:: C:\Users\Practice Manager\AppData\Roaming\Thunderbird\Profiles\kn769u8t.default-release\ImapMail\secure251.inmotionhosting.com

The secure251.inmotionhosting.com is the big pig with 65.4Gb.

Any insights and help would be greatly appreciated.

I recently installed Ubuntu 22.04 and now the address book crashes when I attempt to use it to create an email; thunderbird freezes and give me the window stating 'not responding' and if want to force quit or wait. I end up having to force quit. But I use my address book's saved lists for a number of emails, and now this is not working. How can I fix it? I would need detailed steps, as I am not anything but a general user. Thanks.

I use Thunderbird since years. Non problem, I'm very happy with it. Two days ago I upgraded my PC to Windows 11, and when I send some emails from one of my three accounts, while copying it in the relevant folder, the shown windows is cut on the right, as per my attached snapshot. Small defect indeed, but... :-)

My wife's C; drive is nearly full, and part of the problem is the TB Roaming folder under AppData under Users. On my PC this folder is 16MB, but on my wife's is over 35GB!

How can I reduce the size of this folder?

thanks,

My installation was updated as of 11/17 to ver 102.5 but the update message completed on 11/19 since I have automatic background installation set for my option.

I currently am not able to download any messages from my provider to the any of the 3 inboxes set up under the installation. The get messages button does not do anything. My provider has a POP server and I am unable to send any mail outbound either; the message is that the SMTP server is unavailable or not accepting connections at this time.

Tech Support from the provider denies any server problems and in fact, in using a web browser connection to the mail server, all the incoming mail is visible and can be accessed.

Any ideas on what fixes I can make to restore the ability to see current mail in TBird??

I am unable to send messages from Thunderbird This is the error message I receive

Sending of the message failed. An error occurred while sending mail: Unable to establish a secure link with Outgoing server (SMTP) smtp.telstra.com using STARTTLS since it doesn't advertise that feature. Switch off STARTTLS for that server or contact your service provider.

I am not tech savvy so dont know what to do to fix it

I KEEP TRYING TO GO INTO MY E-MAIL AN IT WILL NOT LET ME. IT KEEPS COMING UP SAYING NOT RESPONDING. I AM NOT SURE WHAT TO DO. THE LAST DAY I WAS SENT ANYTHING WAS 11/25/2022. I KNOW THAT I NEED TO GO THOUGH MY E-MAILS TO GET RID OF A BUNCH OF THEM TO FREE UP SPACE. CAN YOU PLEASE LET ME KNOW WHAT TO DO. THANK YOU IN ADVANCE SHERRI LENZ PHONE [removed phone# from public] HOME OR [removed phone# from public] CELL

Hello

When I restart my PC (windows 10) and open Thunderbird it takes over an hour to start up. I get the 'Thunderbird is not responding error' all the time and it is very very slow. Even when it eventually starts up, it crashes every time I click on the screen for about a day before it gets back to normal. I have just been leaving Thunderbird open but I need to restart my PC every now and then.

I have no Antivirus apart from Windows Security and have added the entire contents of the Thundebird file within the :C drive (Local Disk) to the exclusions.

When I start my windows PC in safe mode with networking, Thunderbird starts up immediately and I have no issues, but I have no idea what is causing it to be so slow when in normal start up and how I can fix this issue?

I have been having these issues for a long time now and have tried everything I can think of.

Any help would be greatly appreciated, have used Thunderbird for years and it would like to stick with the platform!

Many Thanks,

Hello! Windows 11 22H2 22621.1555 + Thunderbird 102.10.1 (64-bit) I face a problem with Yandex mailbox with the following authentication settings: smtp.yandex.com:465 SSL/TLS OAuth2 The "Enter credentials" window gives --- 400 redirect_uri does not match the Callback URL defined for the client --- after logging into account. The address in the window is https://oauth.yandex.com/authorize?response_type=code&client_id=...&redirect_uri=http%3A%2F%2Flocalhost&scope=mail%3Aimap_full I removed the client_id but "localhost" is authentic and suspicious. What can cause the problem?

After changing my password I get the following error message: "Server imap.pt.lu has disconnected. The server may have gone down or there may be a network problem" Thunderbird is running well on my mobile, so why not on my PC? I have tried these things: Internet connection is working (as you can see from this mail) I have checked server settings, they seem okay. I have deinstalled and reinstalled Thunderbird. All to no avail. Can you help me?

I've been a faithful Thunderbird user since the beginning - and continue to use Thunderbird with our company's Microsoft365 deployment

until Monday of this week -- when suddenly I find that my credentials are being refused.

The symptoms

• XXX: Connected to outlook.office365.com
• nothing in the activity viewer
• no email coming in

I've read and tried all the fixes proposed in the article at https://support.mozilla.org/en-US/kb/microsoft-oauth-authentication-and-thunderbird-202 (restarting thunderbird after each step, naturally)

• have authorized Thunderbird to our Microsoft365 tenant
• created and tried registering with a new thunderbird profile
• have set my security settings to 'accept all cookies'
• have used the config editor to remove 'oauth2.issuer' and 'oauth2.scope' values
• I've checked that my account in Microsoft365 has IMAP and Authenticated SMTP enabled

So, since Monday, I've been living in hell, trying to pretend that the Microsoft Outlook app for macOS is useable, but it's practically debilitating to be forced to use that piece of software.

Can somebody please point me to another possible set of steps that I can use to try and diagnose this?

I absolutely hate myself for having to ask for help on this, but I'm at my wit's end...

Keeping got massage: The folder 'Inbox on parkerlin@hochien.com' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again.

Have clean up all In box mail and compacted it, but still has same problem .

I had Thunderbird automatically upgraded to 115. Since then I only see the new emails, all folders and emails from September 12th, 2023 have disappeared. Unfortunately, the restore command doesn't help with MozBackup either; it is executed but with no result. Please describe to me step by step how I can restore the folders and emails.

In this folder: C:\Users\kschl\AppData\Roaming\Thunderbird is just an old profile. Therefore, I wanted to use a backup via MozBackup to restore all data, unfortunately this doesn't work. An initial comparison of the newly created profile also shows the folders, but they are not displayed in Thunderbird - there is an incorrect setting.

Please describe this to me step by step, including in which directory I should store the backup in the future.