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I have had an ongoing problem with Thunderbird being unable to log into the various mail servers that I use. I've tried repeatedly to solve this problem and have been able to cure it in the past by clearing the cache, but it recurs over and over again. I cannot keep wasting my time like this. I'm an independent contractor and I need to be able to use my e-mail client consistently. I've got work to do! This morning, it's suddenly decided that it cannot log into any of the three services that I use.

Is there a lasting solution to this problem? If not, please tell me and I'll move on peacefully, but please don't keep me chasing my tail for something that cannot be fixed.

I have been using Thunderbird for many years. I have 4 accounts that have all been set up and working fine. This morning the 2 yahoo.com accounts stopped working. I logged in to the impacted accounts using a web browser and password just fine. I then updated Thunderbird to 116.0 to see if that would fix the problem, but it did not. The outlook and gmail accounts are working fine, for now.

When Thunderbird attempts to download mail for the yahoo accounts, I get a large pop-up window with "Edge: Too Many Requests". The pop-up window is blank except for that error message. I get the small pop-up with the Authentication Failure message. Sometimes I get Retry, Enter Password or Cancel. But I never see a window that will allow me to enter my password.

I can send/receive mail from the accounts while logged in via a browser but authentication fails within Thunderbird.

I'm running Thunderbird with one account without problems. When I try to add a second account I get as far as entering name and e-mail. After this, a cirkle starts spinning and never ends.

I've been using the Thunderbird App (v12.1) on a Google Pixel 8 (Android 16) for a while now with several Email accounts from different providers. One of them is a T-Online Email address. Recently it appears to have stopped syncing the folders only for this account. I still get emails in the inbox but all the folders are empty. It only says "Bis zu 100 weitere abrufen" (request up to 100 more) but tapping that doesn't make a difference. In the settings I have the sync set to everything without limitation.

I tested the same account with K9 (v11.1) and Google Mail and in both all the folders have their content.

Does anyone have the same issue or any suggestions? Is there any logging that I turn on to see if there's any errors?

Thanks!

Hi...I'm having trouble with T-Bird connecting to outlook.live....error message:

"Your browser is currently set to block cookies"

I checked my settings and I don't see anything blocked...I also added:

Microsoft.com Allow outlook.live Allow

...and I still get the same message - "set to block cookies".

I'm far from being a computer wiz and just started using T-Bird about a month ago and I'm very happy with it. Any help with resolving this problem would be great! It might be something simple...as I'm no expert and still learning. Thanks, Bill

Under Inbox | Trash in my TBird account is a structure

2019
  subfoldername
     sub-subfoldername

in italics, in gray letters. When I try to delete it, I see "The server replied [Nonexistent]" and the structure disappears; until I close and reopen TBird, and there it is again. When I select "Empty trash" I get no error message and the structure disappears; but it reappears on reopening TBird. How can I make it gone gone gone?

Ubuntu 24.04.3 LTS new installation. Thunderbird 140.3.1esr (64-bit) Adding an existing account Type in My name and email address and click Continue It says it is looking up configuration and it is just looping around and does not report an error. I have waited over an hour with no result. The only way to recover is to go to the taskbar and right click Quit. It would be helpful if there were away to know what is blocking the search for the configuration.

Trying to add an email account. I go to 1st screen. Enter name and email address. Press continue. The screen spins and does not stop. Not after 10 minutes. I had tried earlier and got did get to the config screen. But was having problems. Cleared cache in Firefox, and then could not get past the 1st screen. Also, screenshots show how to add account shows three fields - name email, password. But I never saw that screen. That was a more old school style screen. he current screen I see has dark blue background, more modern style. See image attached. I had previously gotten past this screen, now I can't. Please help! Thank you

Hi, I used Thunderbird on a portable computer in installing automatically my mailboxes without issue. Then the systems suggested me to upgrade to Windows 11. I did.

But since that time I can not more use Thunderbird because it cannot set up my mailboxes on outlook and a specific national operator.

Is there an issiue in usign Thunderbord under Windows 11 ?

Tks.

Trying to set up a new email account in Thunderbird I go to the Account Hub, enter the name and then the email address of the new account and select <Continue>. There then appears a greyed-out box showing "looking up configuration" with the usual turning circle indicating waiting for a response. After three hours still greyed-out with the turning circle and no response. I have tried several times. Please advise a solution

I use thunderbird in UK with several emails accounts. Works splendidly on desktop and mobile. Now in Greece I can neither send or receive emails on any account. But Gmail and outlook work fine. Is there a firewall problem or similar? Thanks

Hello, I want to convert my POP account to an IMAP account. I am following the procedure for creating a new email account. I enter the account name, email address, and password. But at the end, I always get the following message: Authentication error. Unable to connect to the server. The configuration, username, or password are probably incorrect.

Please note that I am using the same name, email address, and password as for my POP account, as recommended in the online help.

Best regards Dominique Chevalier

Been using Thunderbird for years with these accounts. Just today outlook accounts failing to login. Accounts do not receive email. Can not send email. Checked server settings, which were unchanged and obviously worked previously. Tried deleting passwords in password manager and re-entry. Failed. What's up with the outlook connnection?

Seid einer Woche habe ich keinen Zugang mehr zu meinen E-Mails. Es sagt mir jedes mal "Anmeldung auf dem Server imap.gmx.net mit Benutzernamen "thias.weber@gmx.de" fehlgeschlagen" Ich hatte zuvor nichts verändert und alle eingegebenen Daten sind korrekt. Auch eine Anmeldung auf einem anderen Gerät oder bei einem Freund (bei dem alles Funktioniert) führte zu keinem Ergebnis. Neuinstallation auch nicht!

For a week, I haven't been able to access my emails. It tells me every time "Login to the server imap.gmx.net with username 'thias.weber@gmx.de' failed" I hadn't changed anything beforehand and all the entered data is correct. Even logging in on another device or at a friend's place (where everything works) did not lead to any result. Reinstallation doesn't help either!

pleace help!

I am unable to get my email to work - when I open Thunderbird I get the message "500 something went wrong and we couldn't complete your request". New emails aren't coming through on my computer, nor can I delete existing emails. I can however still send and receive on my phone, which is weird.

I am trying to add my gmail account to Thunderbird, with the normal procedure. It immediately gives the correct settings with OAuth, send me to Google to get the permission when confirming these, then displays «Unable to connect to the server. The configuration, username or password are probably incorrect.», although I have double checked all of these. The same thing happens to a friend I am trying to help (with the latest Thunderbird version available) (140.2.0esr on Ubuntu 24.4.3 in my case). I wonder what happens, as I used to install Thunderbird and add accounts easily, from Google or other services, on a number of people's computer, a few months ago.

Hi, I cannot any more access Yahoo webmail using Thunderbird (140.3.0esr (aarch64) on Mac laptop (Ventura 13.3.1 OS). When I tried to login directly into the webmail server via Firefox to clean the spam folder I was asked to change my password which I did and that works fine. I could change the password on iPhone Mail by first deleting and then making a new Yahoo account with the new email and that works too. I changed the password in Thunderbird following the web advice for two hosts found in the menu: mailbox://pop.mail.yahoo.com and oauth://login.yahoo.com (mail-w) - which one should be kept? After that, when I tried to get messages the following info appeared: "Host contacted, sending login information..." but the contact was not established. First, I use POP3 protocol for Thunderbird and, I believe, IMAP for iPhone Mail. Second, a brief web search suggested that similar problems occurred in Thunderbird before so I hope it will be relatively easy to solve this problem. Thank you.