Thunderbird Support Forum

I 've used Thunderbird for several years without any issues - thank you for that - but suddenly, over the last two or three weeks when sending a message, I have been getting an authentication error message from my ISP and the e-mail is rejected. This occurs every time I try to send an e-mail after rebooting my PC.

A password change made no difference.

Incoming messages are not affected.

Clearly my ISP is blocking the messages because it is not receiving the correct password or account name - but why?

The workaround I have discovered is to enter troubleshoot mode, then send the e-mail (successfully). Then I can exit troubleshoot mode and any later e-mails are also sent successfully - until I reboot the PC and then I have to repeat the procedure again.

I am using v91.7.0 (32 bit) on a 64 bit PC and running two e-mail addresses, both of which exhibit the same behaviour.

I do not have any add-ons and I use default preferences.

Any help would be appreciated.

Under macOS Mojave and Debian Bullseye with TB 91.9.0 I cannot import a RSA 2048 bits public key. The error message just says "Error! Failed to import file." Nothing more in the error console. I checked the key with gpg --list-packets and there are no SHA1 digests (algo 2). I can import it without any error in my gpg keyring. Is this a known problem?

The key is (header and footer suppressed because the rendering is wrong, but the key has the correct "-----BEGIN PGP PUBLIC KEY BLOCK-----" header, followed by an empty line, and ends with the correct "-----END PGP PUBLIC KEY BLOCK-----" footer):

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I have an associate who has Thunderbird 91.8 on Windows 11. She has a Google Apps email account in our TM.org domain and has been unable to get it set up in Thunderbird.

Failure to authenticate imap.gmail.com when setting up a new account. Tried pretty much everything the troubleshooting posts have suggested, cookies, etc. Talked with Google Support (it's a google apps email account). Attaching the settings for the incoming server. Have checked and verified the password and email address.

Really would appreciate some help.

Thanks, Jim

My THUNDERBIRD in/out emails no longer work as of 5/16/2022.

My last THUNDERBIRD activity was on 5/13/2022.

How do I fix this lack of usage?

Thank you very much for your help.

Bill Marthens - very satisfied user till 5/16/22.

I can not send emails using thunderbird . I have tried to reply to emails, as well as different emails to a variety of recipients I get the following message. Go to https AUP#IPBL1000. I have not gone there, Is this a scam? How do I get back on track?

Hi,

I have several email accounts in Thunderbird (91.8.1 (64-bit), but for some reason there are always issues with my mail.com [not gmail] account. Emails have been ending up in people's Spam folders, and often when I try to send an email I get the following error message in Thunderbird: ______________________________________________

Sending of the message failed. An error occurred while sending mail. The mail server responded: Requested action not taken: mailbox unavailable Failure sending mail. Try again later. Please check the message recipient "[email@address.example]" and try again ______________________________________________

This happens at random, with different recipients - when I send the same email from my account via the mail.com website, this does not happen, so it must be a Thunderbird issue? Please help!

I've been using Thunderbird for many years and have continued using it successfully since my office changed its e-mail service from serverdata.net to Office 365 several months ago. (Server outlook.office365.com, connection security SSL/TTS, authentication method Normal password.) All was working well as of late on Sat Apr 23. When I next called up T-bird (on my Win 10 laptop) late on Sun Apr 24, I could no longer login to my account. Verified correct e-mail address and password, but multiple attempts to login were all rejected. I could still get in to my account via Outlook at portal.office.com as well as Outlook on my Android, but I can't get in via T-bird....but I hate Outlook and really would prefer to get T-bird working again. On returning to the office the morning of Mon Apr 25, I tried as well with the T-bird installation on my Win 10 desktop (which, again, had long been working fine) and immediately encountered the same problem. So it seems that either there was a silent update to T-bird on Sun Apr 24 which broke T-bird's ability to connect to IMAP on office365.com, or Microsoft did something to the IMAP service on office365.com on Sun Apr 24 which broke T-bird's ability to connect to that service. Yes, I know I could get the Exquilla extension for T-bird and try connecting via the Exchange protocols, but before I do that, it sure would be nice to know whether it's T-bird or office365.com that broke. Anybody else having the same experience? Any solutions figured out yet (other than Exquilla)? Thanks for any insights!

-- Larry Afrin

No mail performance for domain b-bengineering.com SINCE it is now on Microsoft365 !! It has been down for >2 months now. I finally tried using MAILBIRD as a replacement -- But it reported that the server secureserver site is no longer reachable, so users information are lost. Perhaps Microsoft is experiencing the same issues, and can't run my domain ?? PLEASE RESTORE MY OLD EMAIL SERVICE -- It was GREAT before you messed it up !!! Thank you bob@b-bengineering.com judy@b-bengineering.com

My Thunderbird set-up has worked fine for years so I was surprised to discover two days ago I can no longer send emails. I have a Gmail SMTP account which I have never previously have a problem with.

Thunderbird updates automatically and I am on version 91.8.1 - it's possible the problem began when the new version was downloaded but I don't know when that was.

Whenever I try to send an email I get the error:

The message could not be sent because the connection to Outgoing server (SMTP) smtp.googlemail.com timed out.

All of a sudden I can not use the Bcc to send out mail. A dialog box appears no matter the selection of any address from address book to send to, including myself. See screen shot below.

I've been running Thunderbird beta for some time, on one of my Macs. Presently at 101.0b3. It's fine, I don't have any bugs/issues, but I want to downgrade to release and keep my installation uniform.

Now, of course I've read many people do this -- they don't set up duplicate Profiles for it (guilty here).

But what I'm seeing is perhaps a need for some more portability. Namely, if someone has only IMAP accounts, would it be useful to enable export of accounts/credentials in a format that can be imported and is generally portable within the Thunderbird ecosystem?

I see there is an add-on, of unknown (to me) origin or quality -- but it only runs on an older version.

In my case, I have a handful of accounts and while I see you can individually export something from the accounts panel, I don't see any meaningful way to translate that to another version (ie: release) of Thunderbird. Granted, this is not a task that someone does every day (imagine??) but it's a thought.

I wonder, too, if there can be alternate mechanisms to store account information in a secure manner that can be portable -- ie: in the cloud, encrypted -- in a file, etc.

OK that went onto a tangent, sorry -- but as far as I can see, the only option I have is to install the release version of Thunderbird (my beta Profile backed up) and go through the tedium of manually adding accounts.

Am I missing something?

Thanks! :)

Hi! Can you please help me understand why this is happening?

1. When I randomly check my emails through the search function, the emails can not be found on the location it states they are. Ex. location=all mail , but when I search ALL mail , the email in not there.

1. I have SAME Email but the timestamp in Thunderbird is 1 minute less than the time stamp in the Gmail. Ex. In Gmail time stamp is 11:04 am , in thunderbird it is 11:03am

Hello,

I encounter an error when sending a message with an on-premises exchange server. With Windows, an error window appears and is automatically closed. On Linux, the window remains displayed, which is problematic. In both cases, the message is sent and copied to the sent messages folder The windows error message says "copy to sent folder error" (obviously wrong) In console the error raised after QUIT command of mailnews.smtp with the error code 2152398868.

the error was reported by several of our users and I was able to reproduce it.

Console Log : mailnews.smtp: Message sent successfully. SmtpClient.jsm:1293:21 mailnews.smtp: C: QUIT SmtpClient.jsm:579:19 mailnews.smtp: error { target: TCPSocket, isTrusted: true, name: "NetworkError", message: "Network", errorCode: 2152398868, srcElement: TCPSocket, currentTarget: TCPSocket, eventPhase: 2, bubbles: false, cancelable: false, … } SmtpClient.jsm:434:17 mailnews.send: Sending failed; Le message n’a pas pu être envoyé car la connexion au serveur sortant (SMTP) « ******* » a expiré. Veuillez essayer à nouveau., exitCode=2153066800, originalMsgURI= MessageSend.jsm:336:27 mailnews.smtp: S: 221 2.0.0 Service closing transmission channel SmtpClient.jsm:413:17 mailnews.smtp: Closing connection... 3 SmtpClient.jsm:153:17 mailnews.smtp: Socket closed.

My Thunderbird app has not received or notify me of any emails for the past two days. I've had to use it on google in able to see my emails. It just has a continuous loading sign when i say get mail and nothing comes through. I have tried uninstalling the app and redownloading it too

I never could get Virtual Identity or Correct Identity to consistently work predictably, so after many months twiddling them, I removed them. Then I needed to test what I had to do to live without them. There's a problem.

(The email addresses and accounts are fakes, but you'll get the idea.)

When I send this message to myself at a different account:

To: to@gmail.com
Reply-To: replyto@gmail.com

me.to gets the message fine. When I compose a reply, I expect this:

To: replyto@gmail.com
Reply-To: to@gmail.com

But I get this:

To: replyto@gmail.com
Reply-To: to+arf@gmail.com

to+arf@gmail.com was a virtual identity. So it appears that something is screwed. But what is screwed and how would I fix it?

Grateful for any ideas, Mark.

I'm trying to setup IMAP settings for an iCloud account using a custom domain. I'm running into a authentication problem. I don't get a lot of feedback from the error: Login to account "sss@yyy.com" failed Login to server imap.mail.me.com with username sss@yyy.com failed

I'm using an app specific password [0] and my iCloud account as the username which is also based on my custom specific domain yyy.com. I've also tried my iCloud alias which maps to aliasname@icloud.com as the username as well as "aliasname" without the @icloud.com. No luck with any of the permutations.

Any hints on troubleshooting this? Any issues people are seeing with iCloud IMAP and/or using custom domains with it that might help me with this?

[0] - https://support.apple.com/en-ca/HT204397

On clicking on shortcut got "You have launched an older version etc" I didn't know I had more than one! Find I cannot get Tb any other way than downloading fresh copy. Have now lost all of calendar, and Tb now has "calendar" listed on left side, but no calendar present. How to get? Would it be a good idea to have the calendar stored somewhere separately so it can't be lost this way??

Regards, David

No response to previous, so trying again with 2 questions: 1. Having lost addresses and calendar because of having to download fresh program, are addresses and calendar still somewhere in the computer to be retrieved?? 2. To guard against it happening again, can ads & cal be stored remotely for re-importing??

David