Thunderbird Support Forum

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?

MacOS Sonoma 14.4 seems to have broken a number of apps. AFter updating to Sonoma 14.4 I experienced a great number of crashes with Thunderbird, so I completely uninstalled Thunderbird and removed all traces of plists, Application preferences, everything, reinstalled Thunderbird, and added back the two email accounts I use with it.

It now takes up to 30 seconds to start up Thunderbird, after which it happily no longer crashes, but obviously the startup time is unacceptable. I experience the same problem with Typora, and the developers there informed me that they believe the problem is with a Sonoma change that broke WebKit. I don't know if Thunderbird still uses Gecko or if the new version is WebKit. Please let me know if other Sonoma users have reported this problem or if it's just my system.

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.

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)

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

When trying to sign messages with thunderbir on debian mails won't deliver.

If they are not signed, it will send smoothly even if they are encrypted.

~$ lsb_release -a

No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux trixie/sid Release: n/a Codename: trixie

~$ dpkg -l |grep thunderbird

ii thunderbird 1:115.7.0-1 amd64 mail/news client with RSS, chat and integrated spam filter support

~$ dpkg -l |grep gnupg

ii gnupg 2.2.40-1.1 all GNU privacy guard - a free PGP replacement ii gnupg-l10n 2.2.40-1.1 all GNU privacy guard - localization files ii gnupg-utils 2.2.40-1.1+b1 amd64 GNU privacy guard - utility programs

using gnome-desktop-3

~$ dpkg -l |grep pinentry

ii pinentry-curses 1.2.1-3 amd64 curses-based PIN or pass-phrase entry dialog for GnuPG ii pinentry-gnome3 1.2.1-3 amd64 GNOME 3 PIN or pass-phrase entry dialog for GnuPG

Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp.gmail.com failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again.

What can I do?

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 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! 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?

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...

bij het importeren van adressen is het misgelopen. Er waren een 90 tal adressen en na de bewerking vermeldt het systeem een 2700 adressen. de teksten waren niet leesbaar: alle letters dooreen. Die kan ik nu niet verwijderen

For past 24 hours only, I have been unable to open email attachments. v115.7.0, however last update was 31/01 and has worked perfectly until now. Still use Windows 10.

Double clicking on attachments does nothing, other than popup software option for formats without specified defaults. Either way, no indication that attachment is opening.

"Save as" is saving attachment document to target folder, however trying to open these errors, suggesting document is corrupted or in incorrect format.

Have tried restarting system to no effect; likewise error continuing in troubleshoot mode. Cannot see any obvious settings that would impact this, nor have I consciously altered any of these.

I'm certain this may be an easy fix, or my own error, but this is eluding me.

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 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.