Thunderbird Community Forum

Normally, I can right click and tell Thunderbird that this is NOT junk, however, when I do this, these emails go back into the inbox and virtually instantly return to junk.

This is from anyone's email address that arrives from one particular website: @legacydigitalagency.com

I haven't come across this issue since I started using Thunderbird 20+ years ago.

Believe my T-bird account has somehow been corrupted. Takes forever to load on PC and always puts new emails in Trash folder. Often does not accept correct password. If I save / backup PROFILE, uninstall T-Bird and delete any Thunderbird folders on PC, if I restore per backup, will I be restoring the corrupted app. Don't want to loose email addresses, thousands of emails and email folder structure. Will a restore work? Thank you. Greg D

PS Version of T-Bird on laptop still puts all new email in Trash, but loads much more quickly, etc.

Is there a way to create a Thunderbird account even though your system is not able to log into my iCloud.com email account using my credentials?

lorsque j'envoie un mail par mon compte aol, celui ci figure aussi sur les messages envoyés gmail. Je souhaite qu'ils ne paraissent que sur la messagerie d'envoi d origine comment y remédier ?

Good morning

Since this morning (05/03/2026) Thunderbird freezes within a minute or two of opening the program.

Everything in the program freezes up. I cannot even close it.

I am running Version 140.8.0esr on a Windows 10 PC.

Initially I was getting a pop up warning message that ask me to confirm if I wanted to send an email with attachments of over 20 MB. There were 3 or 4 such messages. I had not tried to send such emails.

I checked the Outbox in Local folders for old messages, but it was empty. I also checked the Unsent messages files in Local Folders in the Profile folder. I deleted the Unsent Messages.msf file to no effect. I renamed and replaced the Unsent messages file. Also no change.

I checked for crash logs but there are none.

I have run out of ideas as to what to try next. Does anyone have any advice?

I got a new account on my german provider 1&1 and used the right servers the company recommends on its Website (same servers as the previous account). For some reason it is not possible for me to send any Emails but to receive them. On my Iphone I neither receive nor send messages because the server isn‘t working as well. I tried several different accountnames…. I hope you can help me. Thank you!

(PS: first image from Iphone, second image Thunderbird on Macbook)

Hello, i have installed latest TB an try to use it on one PC - This PC is part of company network, users login to windows by domain controller login. there is also a exchange server in the same network. i have created a running and working thunderbird-exchange connection for 2 different users but with the third user its noch working anymore. is there a limit to user accounts on one PC or? Thank you all kind regards andi

I am using the latest version of Thunderbird 148.0 on a MacBook Air with latest OS Tahoe 26.3.

Yesterday I was unable to receive messages via Thunderbird app but could log in to my provider and view the messages on webmail. Checked my account configuration and changed the port to 110 which seemed to fix the problem.

However, this morning I again cannot receive emails but I can send them. When I click on Get Messages, the bottom pane which normally shows the app contacting the server and downloading messages instead only shows the blue 'thinking' line (sorry, don't know what proper terminology for this is) for a few seconds then stops.

When I go to Server settings for incoming and check connection to server it is fine.

Any ideas why this is happening?

There is a way to add a folder to a Thunderbird account that combines other folders. The one I want to create would be "Inbox and Sent emails combined". I did it in the past, but I can't remember how to do it anymore. Can someone help with this? I am running Thunderbird 140.8.0esr (64-bit) on Linux Mint.

I cant receive emails only send them. I receive an error message when starting Thunderbird "the current operation on inbox <my email address> did not succeed"

Sometimes Thunderbird asks for a donation. But in order to donate I need the indication of a SEPA account. Other options are too cumbersome for me. Because this topic is not listed in the topic list, I have selected "Accounts".

I use earthlink.net (28yrs) with Thunderbird. I set up a second account (name123@earthlink.net) which somehow became my primary account. It accesses fine, but my major account (name@earthlink.net) asks for password which I don't know and can't find using tools, account settings etc. This just started and I typically get 50 emails per day and cannot access. I can access X@earthlink.net

(PII redacted by moderator)

re: OAuth2 Authentication for Yahoo, AOL and ATT

My settings selections don't really follow your help descriptions to the letter,so..., also, I already have 2 accounts on 2 platforms and they seem to already be configured with SMTP outging servers using OAuth2.

I'm confused since I'm now on 140.8.0 and have not needed to change a thing, contrary to expectations set from T-bird app popup warning and Mozilla article.(?)

The https://support.mozilla.org/en-US/kb/thunderbird-and-yahoo article is ambiguous. Does mailnews.oauth.usePrivateBrowser only need to be set to true if you have 2 accounts from the (Yahoo, AOL, ATT) set? Or if you have any 2 accounts, including, for instance, 1 Yahoo! account and 1 Gmail account?

Hello. My email account with you is not receiving emails. But I did test for sending emails and it seems to work? Can you look into this please? x@windstream.net

(PII redacted by moderator)

Bonjour je n'arrive plus à accéder à ma boite mail à l'ouverture il m'est demandé mon mot de passe , je l'ai oublié quand je suis la procédure pour afficher mon mot de passe, il m'est demandé un code confidentiel que je ne connais pas, comment puis je faire? je n'arrive pas à trouver ou le reinitaliser. et lorsque je tente d'accéder à la messagerie j'ai un message suivant: "echec de la connexion à imap.sfr.fr avec cet utilisateur" je n'avais jamais eu de problèmes jusqu'à aujourd'hui Puis je supprimer le compte de messagerie et le recréer ensuite? mes dossiers locaux et archives seront ils conservés ou perdus? Merci pour votre aide envoyez moi vos réponses à " jm.X@ gmail.com" car plus d'accès avec Thunderbird