Yonke imikhiqizo Community Forum

Problem It prompts "Unable to log in at server. Probably wrong configuration, username or password" when adding Gmail on my Thunderbird on Manjaro Linux. My Google account has 2FA and Authenticator enabled.

No google webpage asking for login popped out. (but Microsoft's webpage did popped out and asked me to do 2FA when adding an outlook account).

Tried to add and use "Google app passwords" but it didn't work for me.

All other of my emails worked well including outlook and several others.

Thunderbird info: 128.7.0esr (64-bit) Mozilla Thunderbird for Manjaro LinuxManjaro - 1.0 On KDE Plasma 6 Wayland session

This seems to be an ancient but long not fixed problem (?) 🤯 Could anybody here help a bit (?) Would appreciate that veeeery much!!! :3

After entering verification code from email i receive an error every time i try to login into this account on my PC, i fully cleared browser data several times but it didn't help

i cannot get Gmail configured in Thunderbird. ive deleted it and re tried countless times but is keeps saying wrong credentials. ive followed all the guides and done everything . what is NOT happening , is Thunderbird does not open a browser to sign in with google. why?

I've been using Thunderbird 140 esr on Windows 10. I got a new computer with Windows 11 and decided to go to the Release channel for Thunderbird which is at version 142. When I try to set up my ATT/Yahoo account, it fails "Unable to log in at server. Probably wrong configuration, username or password." If I go to the manual setup, the authentication method I used for TB 140 on Win 10, OAuth2, isn't one of the options. How do I get that option back? I tried unticking the Create Accounts in the new Account Hub, but that didn't help. I also tried uninstalling 142 and installing 140 esr on my Win 11 box. It has the same problem: No OAuth2 option.

my wife's computer uses Spectrum webmail and Thunderbird to access her email. She uses Thunderbird all the time. Last night Spectrum did something so her password was deleted. We finally got webmail up and working with a new password, however, when she tries to access Thunderbird a message comes up and says to log into mail.brighthouse.com and put in the password. We tried this several times and the same message comes up without letting us use Thunderbird. Sorry we are seniors and this is driving us crazy,as my wife loves TBird.

Thanks Richard Buzzard buzzard2841@gmail.com

Hi, Thunderbird was working fine in the morning, but later in the day, it suddenly stopped downloading messages from my Hotmail inbox and asked for my password again. When I entered my password, I got the following error message:

"Sending of password for user mazyarm@hotmail.com did not succeed. Mail server pop-mail.outlook.com responded: Authentication failure: unknown user name or bad password."

Thunderbird won't sign in to check emails. I also get the message:

"Login to server pop-mail.outlook.com with username mazyarm@hotmail.com failed."

And those are the messages I now get whenever I click on the Get Messages button. However, I am still able to access my Hotmail account directly using the Firefox web browser, so I know that my username and password are not the problem.

Does anyone know what's going on? How do I solve this problem? Thank you, Maz

I upgraded to update 138. Thunderbird now requires me to enter a Primary Password. I never set a primary password. I cannot send, receive, or make any changes to Thunderbird.

How do I get out of this situation?

Today I changed the password on one of my gmail accounts. I edited the password in Settings in 3 places: imap, smpt and oauth. Next time I started Thunderbird I got a gmail authentication pop-up. Se first screenshot. The email address was shown correctly. When I clicked Next, I got the failure message. See second screenshot. I rebooted and tried many times with same result.

I have several other gmail accounts on this same Thunderbird client and they continue to work correctly. I know my password is correct because I can access this email account both directly on gmail and also on another computer where I set up Thunderbird just to test for this problem.

Any idea what is going on and how to fix it?

Hi there Thunderbird Community,

I am first time user of Thunderbird, and I am using version 140.2.0esr (64-bit).

I have been trying to connect my Gmail account, and it keeps on giving me this error that I have seen on other threads: "Unable to log in at server. Probably wrong configuration, username or password."

From the other threads, I tried to do the troubleshooting suggested:

 - cleared the cookies associated with Google
 - added https://account.google.com as an Exception for Cookies and to always allow
 - disabled Account Hub since it seems to have issues from what I read on another thread
 - changed my Google account password
 - tried another Gmail account with no success
 - tried various Thunderbird versions, uninstalling the old one before reinstalling the new one:  Thunderbird Release (Recommended), Thunderbird Extended Support Release (current version being used), and Thunderbird Beta.  I have not tried Thunderbird Daily.

I have added Google OAuth screen-by-screen images of what I saw before getting the Thunderbird client error message.

Any ideas?

Thanks! James

I live in Germany and use Deutsche Telekom's T-Online system for my main e-mail system, so my email address is: k.vanleuven@t-online.de

Due to some security problem, I had the change my T-Online e-mail password and since this time I can't send or receive e-mails from my German version of Thunderbird. Thunderbird asks me for the"secureimap.t-online.de" server password, but it doesn't recognize the new password that I have for my T-Online e-mail system.

I store my e-mails in various folders folders in Thunderbird and I want to continue using Thunderbird for my e-mail management.

I think I might have to re-install Thunderbird from scratch. Must I do this, if so haw do I save all my e-maile files?

Your help in solving this problem will be very much appreciated.

Karl Van Leuven

I had a free email account with my previous ISP (big mistake!). I had to create a new email account elsewhere when I switched ISPs. All was good for almost two years but I just bought a new PC and have ported all my email accounts over to the new Thunderbird. It appears that everything is set up correctly but I have one annoying problem. The old email account is kept only to be able to look at old email (pre-new email account) from time to time. It is not even possible to sign into the old account but Thunderbird keeps asking for the password. Is there anyway I can stop it from doing this?

Thanks!

I recently transferred my Thunderbird account to a new PC and have been getting a pop-up to enter credentials for a google account every 10 minutes or so. After the pop-up is opened (sometimes in the background), no new mail will be fetched until the pop-up is closed, this is frustrating as I sometimes don't notice the pop-up so seems like I am not getting emails. The pop-up is for Google account, but my mail accounts is from MS Outlook, I don't use Thunderbird for any Gmail and I don't think this Thunderbird profile is associated in any way with my personal Google account.

This is a work computer, so not associated with my personal accounts. I dont want to put my personal Google login here and I don't know how to stop the pop-up.

The transfer was done by copying my profiles folder to the new PC, then installing Thunderbird and creating a new profile, and pointing to the profiles folder. I've had the same profiles folder for 10-15 years or more and not seen this before.

Sam

After installing upgrade to 139.0.2, POP downloads failed. Last was on 6/19/2025 at 8:19PM. I deleted both saved passwords.. Went to AOL and generated a new APP password but there was no way to upgrade to it. I sent a test message to myself [ smtp] and AOL logged me in and TB generated the saved password oauth://login.aol.com (mail-w).

However even with shutdown TB and restart, there was no request for a POP password [ such as the new AOL APP generated one. What should I do? Is this a bug? I can read and use AOL mail on my browser [EDGE]. LKint@verizon.net

Whenever I sign in to sync my browser it keeps asking me to sign in again to reconnect to sync.

I've tried reinstalling the browser, deleting the Mozilla directory in %APPDATA% and reinstalling, removing account and signing in again.

No matter what I do I keep getting asked to sign in again to reconnect even though the initial sign in was successful.

Unfortunately my laptop crashed with windows 10 on it. I have since had it fixed with windows 11 installed. However when I try to sign in to my Sky email account through Thunderbird (imap.tools.sky.com) my password fails. I have signed into my sky email separately (they use Yahoo) with the same password and the same password works fine so I can get into my email account with no problems that way. I am now stuck as I am using the correct password but Thunderbird is saying that the login has failed. So I am asking how can I solve this.