Thunderbird Support Forum

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?

I'm a long time user of Linux Mint. Now on 20.3 and Cinnamon desktop. Also a long time user of Thunderbird. Now in version 91.8.1 Always used the "allow insecure apps" in my gmail account settings and used normal password stored in Thunderbird. Google urges to change the authentication method to oAuth2. Tried everything to no avail. Always "authentication fails when connecting to imap.gmail.com" Cleared all cookies, allowed them, deleted all saved passwords, followed all published advise I could find, and nothing. Then I made a brand new profile pointing to an empty dir and entered my gmail address and checked everything. Same result. In despair I installed Evolution and all run fine at the first try. Should I really give up on Thunderbird? Thanks in advance for any help!

On May 20, 2022, in a few days, Google will turn off "unsecure access" to Gmail from Thunderbird and Outlook. This will require changing the Thunderbird account settings from "Normal Password" to "OAuth2" for verification. Problem is OAuth2 verification will not work on my Windows 7 laptop. It just runs in circles. A Google page opens, asks my Google account password, accepts it, and then shows a page asking to allow access to the account. Saying yes just closes the window, but no mail gets POPed down to Thunderbird. In my testing, OAuth2 does work on my Windows 10 laptop. If you are as stubborn as me about still using the Win7 computer, you can change your Google account to use 2-factor verification. They will call you or text you every time you log in to the Google account itself, or you can buy a USB dongle. Once you have 2FA setup, you can go to the "Security" sidebar in your Google account, and create an "app password". I said "Mail" and "Windows Computer" and it generates a 16-letter password shown as all caps, but when cut-and-pasted in my Keepass password manager is all small case. You can then go back to, or stay at "Normal Password" in your Thunderbird account settings, and when the password to your Google account fails, put in the app password and check "Remember in Password manager". Then you can POP emails from Gmail again. I don't know if Outlook has these problems. I assume IMAP on Win 7 might have these problems. I did create a new T-bird profile just to try this out. I detailed that misery quest in a previous post: "Almost can get Gmail with 2FA" https://support.mozilla.org/en-US/questions/1369836

The sad thing is my Google password is 15 characters alpha mixed with numeric, I assume case sensitive, and also special characters. So it is much more secure than the app password Google assigned me. Especially more secure now that hackers know our email password is 16 alpha non-case-sensitive. Oh well, that's Google for you. Don't blame them, blame the idiots that set their passwords to Password1.

After figuring out this with the new test Google accounts I made, I just switched one of my three "real" Gmail accounts to 2FA, and an app password for mail. If I read right, if you try to outsmart the system and drop out of Google 2FA, it also invalidates all your app passwords as well.

It would be nice if the T-bird team could see why OAuth2 verification fails in Win7. I posted results in my T-bird error console in that previous post. I hope this is a weird thing that only affects me, but just in case, I thought I would post this for other Win7 dinosaurs out there.

After update to above Beta I keep getting mailbox filter errors on Default account, occurs at start-up & when some new messages arrive that are sent into the filters . See screenshot attached. Many Thanks

Hi, I'm using Thunderbird chat with XMPP and Openfire as XMPP server. My only problem is that I can't transfer file on chat window. However, I can easily send files on other XMPP client such as Pidgin or AstraChat.

So, my question is, does Thunderbird chat support file transfer ?

Thx

After updating Thunderbird to the new version 91.9.1, most of my email messages disappeared.

An error message was displayed after updating to the new version. Thunderbird restart chashed and I started the program again, just to noticed that the messages were not anymore in the folders.

How can I recover my messages?

Andy

I have lost my IMAP and SMTP connections between Thunderbird v91.9.0 on Windows 10 and two Gmail accounts. One is a standard @gmail.com account and the other is an @my_domain account on Google Workspace. The experience is (almost) the same on both.

Any help would be greatly appreciated.

When I try to read IMAP mail through Thunderbird, I'm presented with a pop-up (apparently from Google) to log into the gmail account with the email address pre-populated in the "Enter your email" field. Curiously, the email address for the Google Workspace account is broken into two parts with the user name left justified in the field, the @my_domain right justified and a gap between them. This is not true for the standard @gmail.com account, where the field is prepopulated with a left justified username@gmail.com. I click the "Next" button and an "Enter your password pop-up (apparently from Google) appears, into which I enter the password and click "Next".

Then I see a pop-up (apparently from Google) which says "Mozilla Thunderbird Email wants to access your Google Account", with "Allow" and "Cancel" buttons. I click "Allow" and often (but not always) see a small pop-up (apparently from Thunderbird) which says "Authentication failure while connecting to server imap.gmail.com".

The experience on the sending side through SMTP is similar. Upon clicking "Send" in Thunderbird, I'm presented with the same sequence of pop-ups (apparently from Google) to enter Google user name, password and permission to allow Thunderbird to access my email. Then there is a "sending message" pop-up (apparently from Thunderbird) which never completes.

Here are what I think are the relevant Thunderbird settings --

 Thunderbird settings for user@my_domain.com
   IMAP server: imap.gmail.com        
   IMAP port: 993        
   User name: user@my_domain.com        
   Connection security: SSL/TLS        
   Authentication method: OAuth2        
               
   SMTP server: smtp.gmail.com        
   SMTP port: 465
   Connection security: SSL/TLS        
   Authentication method: OAuth2        
   User name: user@my_domain.com        
           
 Thunderbird settings for user@gmail.com
   IMAP server: imap.gmail.com        
   IMAP port: 993        
   User name: user@gmail.com        
   Connection security: SSL/TLS        
   Authentication method: OAuth2        
               
   SMTP server: smtp.gmail.com        
   SMTP port: 465
   Connection security: SSL/TLS        
   Authentication method: OAuth2        
   User name: user@gmail.com        
               
 Thunderbird Preferences            
   Accept cookies from sites: Checked        
   Accept third-party cookies: Always        
   Exceptions: https:accounts.google.com -- Allow        

Here are what I think is the relevant Gmail setting --

  IMAP is enabled

Has anyone received this message or know how to fix the issue that may be causing it?

The reason for the problem: 5.3.0 - Other mail system problem 554-'5.4.14 Hop count exceeded - possible mail loop ATTR34 [BL0GCC02FT003.eop-gcc02.prod.protection.outlook.com]'

I am using v. 91.9.1 of Thunderbird e-mail

I have been running 4 e-mail addresses, all with BT.

This last week 2 of those addresses have stopped sending outward messages although I haven't changed anything in Thunderbird or BT.

The other 2 addresses work for both in & outgoing mail.

On the failed outgoing mail I get the following message:- "Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) mail.btinternet.com. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'." BT says they can't help. The problem is with Thunderbird??

Any ideas ? Regards David Bates

Hi, I have an existing installation of Thunderbird 91.9.1 on my linux system. I have a gmail, outlook and web.de mail each running via this installation (IMAP). My new workmail is hosted by 1&1(ionos). I can log in via web interface. Autoconfig finds the configuration that is (according to their help articles) the correct one to access the Mail via IMAP. Incoming: imap.1und1.de SSL/TLS 993 Outgoing: smtp.1und1.de STARTTLS 587 normal Password Username is my full email address. There have been no typos. I checked 5x, copy pasted, rechecked. Pasted it into the web interface login, and thunderbird before clicking go on each -> tb - no, web - yes domain is talsen.team

I would appreciate some pointers to get this fixed. And yes i did read prior questions regarding this error. It did not help in my case.

About a year ago, I was experiencing problems with the current-at-the-time version of Thunderbird which I have been using for ~15 years after transitioning from Eudora. After much frustration, I decided to move to the beta releases & the problem (long forgotten) went away. I thought that the stable release would catch up with me & I could revert to the stable versions one day but I understand this is not possible or advisable.

Q1 : Can I revert from v. 102 betas to the current stable ?

Q2: With the latest 102 beta 2 release (4 June 2022), all my tabs disappeared & I can not get them back. I may be missing the obvious but I can not see how to get them back. I tried reverting to beta 1 but no change. The update was done via the usual "help, about" when it prompted to upgrade. Help messages on the subject seem to refer to older versions where things were obviously different.

Clearly something went wrong & I am not sure if I can fix it myself or must wait for a fix. Any tips welcome.

I am now using gmail to collect my (multiple accounts) pop mail for me until the problem rights itself. I traditionally use pop as I am often offline due to location. This is also my first ThunderBird support question ever.

Hi, I updated my version of Thunderbird by downloading the latest version and installing it as opposed to allowing Thunderbird to automatically update. The basic reason was my old version didn't support OAuth 2.0 which I needed to continue using my gmail account. After the update, I had 2 problems. First, my address book was empty but I have solved that from a backup Profiles folder I have. The second problem is when I start Thunderbird I get the following error message in the pane that would normally show the last email in my inbox:- "File not found

The file mailbox:///C|/Users/blogs/AppData/Roaming/Thunderbird/Profiles/ohv7zad7.default/Mail/Local Folders/Inbox cannot be found. Please check the location and try again."

The 8 digit default file is showing a different 8 digits to my actual Profiles folder. What do I need to do to prevent the error message appearing every time I start up Thunderbird, All my old emails are appearing as they should. Thanks PL

Login to my Thunderbird account has failed for the second time in less than a month. The first time it happened, the system seems to have fixed itself. This time, it is locked. See the attachment showing the error message. I vaguely remember being advised a few years ago to delete something in my TB and reinstall, that the content of my account is stored elsewhere and would reinstall. Is that correct?

I was able to login to all my gmail accounts via thunderbird yesterday, no problem. Today several, not all, of my accounts are giving me a "login to server imap.googlemail.com with username <username@gmail.com> failed. Retry/ Enter New Password/ Cancel. I try entering the password and no luck. I login with the same password via Firefox to gmail on web and it works fine.

Whats up?

A few days ago I got error message from Thunderbird: "Sending of password for user crangard65@gmail.com did not succeed. Mail server pop.gmail.com responded: Username and password not accepted.

Later the same day, after shutting down PC, got into Thunderbird without any problem. Has been OK for a few days then yesterday the same error appeared. I have no problem accessing my gmail directly via Firefox using my usual username and password.

Any suggestions?

Operating system is Linux 4.15.0-163-generic and Thunderbird version is 78.14.0, Build ID 20210901192859

Thank you.

Win7 AMD quad core 64 bit desktop. A few days ago, Tbird 91.10.0 started failing login to both my gmail accounts; wouldn't download mail. When I checked account settings, the 'oath2' parameter had been changed. I re-selected 'oath2', and re-entered my passwords, and everything worked (getting and sending email, both accounts). Last night, when I tried to *send* an email, I got an 'enter password' popup. Entering the password (same one that worked to get mail) did not work, for either account. Today, the problem persists after rebooting, etc.

Gmail's web interface allows logins, receiving and sending mail for both accounts on the same computer.

The seemingly most applicable (closed) thread says to, among other things, enable cookies, but gives no direction as to where that setting is located.

Any thoughts on cause or cure? As I said, this failure just started 'out of the blue' a few days ago. I've used Tbird for many years without any of these issues.

Thanks for any assistance, Charlie

For several days I get the message "Login to server imap.gmail.com with username alansharp26@gmail.com failed". This seems to be since the following update has been installed: Thunderbird 90.10.0 (20220525135609)iNSTALLED 6 June 2022 , 22..22.43. I can receive emails using Outlook on my laptop, and also on my phone and iPad. I have checked the settings and they seem correct.