Thunderbird Community Forum

Incoming mail (txt only; no html) is getting more and more unreadable the last weeks. It looks like in the attached screenshot. I am desperate. What can be the cause of this?

At the same time there are problems with outgoing mail. Characters like 9 or : do not appear on screen although I typed them. When I copy the text to another program, these characters do show. Very annoying. Hope there is a solution to be found somewhere!

Best, Mike

It says my sbcglobal.net settings are out of date. Pops up once a day. HOw do I update my settings for ehsratcliffe@sbcglobal.net?

I have been using Thunderbird for many years, and it's been a while since I cleaned out my Inbox & Folders. I get about 1200 emails a week, so the clutter is extreme. Yet it is still stable, and now I am waiting to see at what level it falls over. Currently I have 84,544 emails in my Inbox, 131,597 in the Junk Folder,33,718 in Archives, 13,388 in another Inbox, and a whole heap which get deleted when I compact the system.

I reckon compacting it has got rid of another 200,000 or so this year.

I am very impressed, well done guys.

redacted@dcsi.net.au

How do I stop Thunderbird 115.10.1 closing tabs by itself? Previous version (I don't know what previous version I was running before the inadvertent forced update to 115.10.1) would leave tabs open until I manually closed a selected tab. How do I get 115.10.1 to perform the same way?

Hey Forum, 2 problems.

1. 1. - I have been having some problems w/my paypal account. Someone has been trying to hack into it. Twice in two weeks. I talked to a paypal tech and was told that they are accessing my emails. And she advised changing my email password. I have use Tbird for several years and don't remember having a password. But if I do, where is it, and how do I change it?
2. 2 - For awhile now I have been getting an error message when trying to send an email. (I can recieve, but not send). it says: "Enter your password for ***********@suddenlink.net on smtpsuddenlink.net" Where would I find such a password and where is smtpsuddenlink.net? Also could the above problem be related to this one? They started about the same time.

Using 140.2.1esr (64-bit) on Win, laptop has plenty of disk space free. When writing a long-ish message, I want to stop and think, so I do Ctrl S to Save... Sometimes works fine. Sometimes Thunderbird hangs and does not save, so I lose everything I wrote, very frustrating. Problem happened off and on during many weeks. I cannot replicate the problem on demand. Shut down- restart did not help. Any help will be much appreciated thanks.

Have 2 email accounts that Thunderbird picks up: Outlook and GMail. Would like to push EVERYTHING downloaded to Outlook folders (from Outlook.live.com) to my GMail account folders. Seems like it should be easy, but I'm not having good success. Can anyone help or point me in the right direction?

In both my Inbox and my saved email folders, when I click on an end-to-end encrypted email, Thunderbird (v145) displays "Loading Message..." and then blocks with a spinning blue "working" cursor for on the order of 30-60 seconds. The Thunderbird dialog then appears to make some progress, as the windows seems to "flash" as if it's being cleared, but the email content doesn't appear. After about another 20-30 seconds, the encrypted email contents appear, correctly decrypted.

This long delay only occurs when I click on encrypted email messages, and it happens every time I click on an encrypted email message, and this behavior only started occurring in the past couple of days (correlated, I believe with Thunderbird updating to v145) so I think it's safe to assume the issue is with end-to-end encryption/decryption in Thunderbird v145.

Up until today I have been able to send emails(with attachments) from my laptop to my cell phone. Now when I want to send an email I receive an error message saying" An error occurred while sending mail. The mail server responded:(VO-1)Message blocked due to spam content in the message. Please check the message and try again. I tried several times since and the same result. Thank you.

I have spent 3 hours trying to figure this out. Nothing works for me.

Authentication always fails yet when I log into Outlook it always works.

I turned off using the new hub and was able to setup my email account but it told me OWL was not active (or something about OWL).

Godaddy is my provider.

What am I not doing correctly?

I received an e-mail containing an invitation. Inside the invitation, Thunderbird corrupted a URL (zoom link) by adding an extra "\", and corrupted the sender's e-mail address, by concatenating it with the sender's last name from the previous line. Has anyone else seen this? How can I prevent it from happening?

Screenshots of the invitation are attached, one copied from the message on the mail server (gmail viewed in Chrome), and the other showing how Thunderbird rendered it. It's drastically different in format, which would be fine, except the content has been changed as well. Note the extra "\" in the Zoom link in the Thunderbird version (verified incorrect) and the e-mail address Davidcdavid@FCNL.org, containing the extraneous characters "David"

Many thanks for help.

I use a search-based folder that simply combines the messages from the spam folders of multiple accounts. There is no actual query, it's set to "Match all messages". For several years now, that has resulted in a search folder where the first message in the list appears twice. I can't delete both of them, but if I delete one, and shift away, then go back, the duplicate is always gone.

This is not exactly a critical bug, but it is annoying and causes a little extra work. It would be nice to have it fixed.

I am currently running 140.5.0esr (64-bit) under Windows 10, but this has been true for quite a few versions back.

Is there other information I can provide that would be useful?

I am sending a message with Thunderbird through my email server Yahoo. The sending has worked flawlessly until yesterday afternoon; I am getting the following error.

Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.mail.yahoo.com timed out. Try again.

This works fine with Outlook but not Thunderbird since yesterday afternoon.

Clyde Barre

I have a Windows 10 machine, have been using Thunderbird and pobox for years.

In case you're not familiar with pobox, it is a mail forwarding service; I pay for an email address and they forward email to up to three servers. I've thereby kept the same email address for a very long time, just changed the address(es) they forward to as I change ISPs, etc. At some point I quit using my ISPs server for my email and just used the one at pobox.com. Pobox was purchased by Fastmail, and so they have some new server names; my old ones have continued to work on my current system.

I use POP3 instead of IMAP because I want the email on my machine, not on a server somewhere. I configured Thunderbird to do this long ago, and so I don't remember details; I've been depending on being able to extract any needed information from its configuration. I am confident I have the password correct; I can log into the web interface to my email, and the password works there.

My new machine is a dual-boot Win11/Ubuntu; my plan is to use the Ubuntu machine almost exclusively and only boot Win11 when necessary. I want to move email operations to the new Ubuntu machine.

I've read info on moving Thunderbird; I find the profiles on the source machine, move up two directory levels, find the equivalent directory on the new machine, copy with replace. I found:

c:\Users\name\AppData\Roaming\Thunderbird

on the Win10 machine, and

Home/snap/thunderbird/common/.thunderbird

on the Ubuntu machine, so I copied the files from the first to the second.

Having done that, when I start up Thunderbird, it displays a page saying "Set up your existing email address". If I do that, of course, it will create a new profile, and I still won't have the old one. I've tried creating it manually, but (a) I don't know how I will then merge it with an old profile and my thousands of email messages, and (b) I'm having trouble figuring out the incoming and outgoing server settings. I remember struggling with that back on Win7 or whenever it was.

Anyway. Anyone got suggestions on what might be going wrong here?

This is a new problem, and I don't know why - nothing has changed on the account. When trying to send an email, I get the message Sending of message failed. An error occurred while sending mail.The mail server responded Relay access denied. Authentication required. Please verify thst your email address is correct in your account settings, and try again. I have checked account settinga, and the address is correct. However, the 'from' address at the top of the email to be sent gives our names (Iain & Sue), the correct email address, then repeats the email address, then Cc Bcc. This does not seem right. Can you help, please? Iain Harrison

I am using Thunderbird 115.5.2 (64-bit) on an older iMac on OS 10.12. I have four email address accounts, all gmail, and using POP. I have stored emails I wanted to keep in sub folders in Local Folders. This has all worked well for years.

Yesterday I lost lost all content from some of the subfolders in Local Folders, while some retained some content and a few seem intact. I also lost most emails that had arrived in the inboxes in the last week. The folder pane still shows the accounts, with their own set of folders. As usual, the inbox folders are highlighted with the number of new emails downloaded from the Gmail server to each address, but I can not see them in the message pane, or find them anywhere else. I sent a test message from one of my addresses to another – It didn't show as sent in Thunderbird, but did go through the gmail server and the message count of downloaded messages on the recipient address went up by one, but I couldn't see the email. Then I tried clicking on the folder "properties" then 'Repair Folder' but nothing happened, although the information on that window showed the number of messages and MB that I would expect to be in that folder, rather than what was there, which presumably means they may still be in there somewhere? I would be very grateful for help – I'm not tech savvy and feeling completely lost.

Hi,

I’m using Thunderbird on Windows and recently ran into a certificate warning that I can’t safely interpret, even after searching the web and using AI tools (which gave me inconsistent answers).

Thunderbird tries to connect to the iCloud contacts server p123-contacts.icloud.com (CardDAV). When it does, I get a “wrong site” certificate error. When I click “View certificate”, Thunderbird shows a valid certificate, but not for Apple/iCloud – it’s for login.kraftcom.de (issued by DigiCert / GeoTrust TLS RSA CA G1). I did not accept the exception.

From what I can see online, p123-contacts.icloud.com is a legitimate Apple domain, but it is also mentioned in some phishing / scareware contexts, which makes me even more unsure how to interpret this combination (Apple host + Kraftcom certificate). I’m also not sure whether this is simply a captive-portal / ISP login interception effect or something that should worry the wider community.

My questions:

Is this behavior expected in any scenario, or does it indicate a misconfiguration / MITM situation that Thunderbird should treat as a serious security issue?

Is there anything I should check or change on my side (Thunderbird config, network, ISP, certificates)?

Is there any additional diagnostic information I can provide (logs, screenshots) that would help you assess whether this is a Thunderbird issue or a network/ISP issue?

I specifically did not confirm the certificate exception and I would like to keep my setup secure, but I also want to make sure the community is aware if this is a broader problem.

Thanks in advance for any guidance

That's a weird one, but I did some testing, and I am sure it is some problem with my Thunderbird or configuration.

Here is what I do. I received an email. I reply to it. I see the reply in the Sent folder. Then I click on the reply and choose to reply to that (as a follow-up email). I verify the recipient is correct and send it. They received my email, but I can no longer find it in my Sent folder. It is nowhere to be found. Tested with another email client - everything works as expected.

Does anyone have a clue what I am doing wrong??

When using shared group calendars (as it's commonly found in small companies) all events that are marked as "public" are visible with details on personal calendars that are shared on some public calendar. Changing to "private" solves, but one need to remember doing this while creating an event.

It would be very useful to have an option for switching to "private by default" when creating a new event. Any possibility? Anyone else with the same need?