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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.

10+ times a day I'll go to search something using the address bar (google search) and it won't search anything. At the same time it won't load any new tabs unless they've been opened recently and it will open them offline. To fix the problem you either need to fully close out of Firefox and reopen it or open a new window in Private Mode and search something (which loads the pages) then exit out of Private Mode and research in normal mode and it will work... It also won't load certain aspects of websites like automation's in Salesforce, but if you open Private Mode it will load those aspects perfectly.

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?

Hello,

Despite the setting that Firefox never automatically deletes my history, it appears that a large part of my history was automatically deleted. Hence two questions: How can I set Firefox in the configuration so that my history is guaranteed to really never be deleted? Is there a way to recover the deleted part of my history, if so, how?

Thanks and best Regards, Andreas

Hello dear Mozilla. In a few moments ago the firefox crash and show massage that its was importing my data to restart its self. But after restarting I cant run the App in its crash again and I had restart my system. After restart my system I run the firefox but my tabs , my them , my extensions and ... almost gone. pleas help me to recovery them I really really need them. Thanks.

Example: If I start typing in the address bar and type the letter a... amazon.com comes up since I frequent there a lot. But, if I start typing the name of my bank nothing comes up in the address bar. I always have to type it out.

For the first time in a week I went directly to my GMX account but couldn't se my emails, contacts or any information other than the form layouts the pages are blank, however in Opera everything is seen. Also for many months Firefox doesn't allow the Recaptures to load so many sites, and services like sending of contact forms, wont work, its extremely frustrating as Firefox has all my passwords. I could go to Pale moon is the PW's can be shared as a FF user of over 20 years it is my preferred browser and would appreciate these issues resolved please.

firefox "100.0.1" keeps freezing non responsive have to shut it down through task manager, it happens all the time. it happens at random. I have uninstalled and I have used trouble shooter I have refreshed firefox nothing helps.

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

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.

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