Forum communautaire Thunderbird

I recently set up Thunderbird for Windows as a troubleshooting step for my Yahoo Mail account which has been generating an incessant number of authentication pop-ups in Microsoft Outlook (Classic) for Windows. I had been using New Outlook for many months before switching to Classic Outlook a couple of weeks ago. With New Outlook, there had been no authentication issues nor pop-ups appearing. I have been using the OAuth authentication, not app passwords, in all cases.

Setup within Thunderbird was relatively easy and the OAuth authentication went through without issues. The account has synchronized and seems to be continuing to do so as I read, delete, and send messages.

However, when I went in to the Activity Manager, I'm seeing a number of errors, appearing every 10-15 minutes or so. They read as follows:

• Alert from account xxx@yahoo.com: AUTHENTICATE Server error - Please try again later

• The current operation on 'Inbox' did not succeed. The mail server for account xxx@yahoo.com responded: UID FETCH completed.

• The current operation on 'Inbox' did not succeed. The mail server for account xxx@yahoo.com responded: p.

Can anyone help me understand what they mean? It would help me stabilize Thunderbird and might give some clues as to what is happening in Outlook Classic for me. It would seem some have authentication issues with Yahoo on different platforms while the service works perfectly fine for others. I would like to move away from Yahoo as I find it finicky with a number of its features, but I'm a long-term user (25+ years) and don't see that being a practical solution at the moment.

Thanks!

I use Thunderbird for email. Suddenly I can neither attach nor insert files/photos into an outgoing email. Also, keyboard shortcut ctrl+shift+A doesn't work and is greyed out. I have no extensions and troubleshooting mode doesn't work either. What's wrong?

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

AVG sends message: "We've identified a site certificate problem" "Trust for this certificate has been revoked."

Looking at certificate page that AVG provides is Greek to me. General tab displays:

"This certificate has been revoked by its certification authority"

issued to : inbound.att.net

issued by: Digicert Global G2 TLS RSA SHA256 20250 CA1

Valid from: 4/12/26 to 10/28/26

Details tab:

lists a bunch of things that I don't comprehend and offers an option to "copy to file" and lists a number of formats to copy the file to.  Have no idea which would be the one to use. 

Trying to access email directly from browser has not been successful because it wants verify my identity by sending message to my phone, but it does not send anything.

New mail keeps going to either the Inbox, Notifications, or the Newsletter folders by default. No filters have been added to change the initial settings. How can the settings be modified so that all incoming mail goes to the inbox, eliminating every future instance of it being directed elsewhere?

I have no interest in the Notifications or Newsletter folders. I'm happy with getting rid of them completely, if that is a possibility that can solve the problem.

I tried turning off the add-on and turned off dark mode. I have been successfully using it this way, having to change the font color using font/bkgrnd color control. I have not updated win10 or TB since the last time I used this function. I send out daily emails with findings to a group bcc list. Not complex nor variating.

I went to light mode, turned off JonathanKamen's "Send Later" add-on (which is designed and executes well). Process successfully concluded.

Turned back on "Send Later". Still works.

I prefer dark mode. Documenting for advice and to see proactively if some gap is there in code say for error handling.

Thank you, Greg [redacted phone# from community support forum]

when I add to or make changes to thunderbird calendar on my desktop, it does not copy to my laptop. they are on the same network. can they both sync to new changes?

T-Bird consistently reports receipt of an email to be received one hour earlier that it was actually received. For example, I received and email at 4:03 pm (Windows 11 time and actual time). The time that T-Bird reports the email as being received is 3:10 pm. I would appreciate help in resolving this. I think it might be the cause of a problem with scheduling an appointment - the online confirmation says 3:10 is the appointment time while a confirming email (received moments later) says 2:10 is the appointment time

i'm using thunderbird for my email messaging. when i reply to an email, why doesn't it show up in the inbox along with received email i replied to? it is nice to see the whole thread at once.

I keep getting this message: "We've identified a site certificate problem, trust for this certificate has been revoked." The location is "inbound.att.net" So I can't receive any E-Mails on my PC, but I can on my phone. How can I fix this?

I recently lost all of my saved emails and the folders they are in on my laptop computer. They are fine on my desktop computer. I have tried everything to restore them to my laptop computer. (backup option, export profiles, etc) But when I try to restore them to my laptop nothing works and they are not restored to it. I have tried every option that I used to save them but they will not restore. P.S I have tried every option on Google searches with no luck. I am running Windows 11. As a side note I never had a single problem when I was using Windows 10 and Moz Backup still worked. Help Richard Clauser [redacted from public] @gmail.com

Hello,

I hope you are doing well.

I have another issue with Thunderbird. It labels many legitimate emails as spam, and they stay in my inbox.

How can I search for and find these messages in order to remove the spam label?

Thank you in advance!

You Know!!! This is not uncommon. This is the first time for me. I've removed the Open as Admin... Off & On. Total BS that this isn't a top issue when I come here. Lousy support. I need to go elsewhere.

On MS Win11, my TBird IMAP client (up to date) has two mail accounts. In one, deleted messages return immediately after deletion! Also, (possibly related), this account has TWO Spam folders (I did not do this). The other mail account's messages stay deleted and has only one Spam folder. I ran the re build tool on the first one without success. I am NOT technical, but have donated several times to TBird (I love it)

The attach button is not working on new emails. I've been dragging files into new emails as attachments. Thunderbird version 157.0.1. When will this bug be fixed? Thank you Norm

Norton flags that the Thunderbird certificate has expired. Looked at instructions on the help, but most are to start from scratch. This is a new problem as of today, so fairly sure it isn't on my end, but cannot verify.

Connection error: Certificates. Works, doesn't work Thunderbird 157 intermittently fails to connect to imap.shaw.ca:993 with SEC_ERROR_UNKNOWN_ISSUER. It affects two separate Shaw email accounts, while Shaw Webmail continues to work normally.

Installed a week ago to replace MS365/ outlook Worked fine. But now it's acting up. Both my Shaw emails as well as my wife's email on her computer.

This does not happen with my domain emails.

I want to attach a file to an email. However, the ‘Attach’ button isn’t responding. The help button at the bottom of the page isn’t responding either. This hasn’t been a problem before.

Ich will an eine Email eine Datei anhängen. Der Button "Abhänge" reagiert aber nicht. Auch der Hinweisbutton an der Fußleitse reagiert nicht. Bisher war dies kein Problem