Thunderbird Support Forum

I have a bellsouth.net email account which is actually att.net hosted on yahoo.com. I'm sure that's a large part of my problem. I can't get Thunderbird to accept the account...seems to be either a credentials or server setting issue. AT&T and Yahoo support has not been able to help. And I'm all out of ideas.

I get a message: "This POP3 server does not seem to support encrypted passwords ..." My provider use only TLS 1. In the pas I have to set security.tls.version.min to 1. This trick doesn't work with 102.

I also try to set security.tls.version.enable-deprecated to true : no good result.

With security.tls.version.fallback-limit set to 1 : no good result.

Any idea?

TB wont send outgoing emails to the gmail account

have spent 4-5 hours on this over last month

have tried- disabling Avast antivirus, disabling firewall, changing ports, erasing and reloading TB

HELP mike barrington mikebarr118@gmail.com

It seems to me something changed recently in Thunderbird that results in my receiving this message instead of being able to download my email:

Sending of password for user dave@dianeanddave.net did not succeed. Mail server mail.dianeanddave.net responded: Authentication failed. My Thunderbird logins are in the first attached png file. My email server is Hostgator and my accounts are shown in the second attached png file.

I can still see my email on Hostgator webmail by logging in to CPanel and choosing the dave@dianeanddave.net account. Using Thunderbird's Troubleshoot Mode provides no further information.

I need the convenience of my Thunderbird access restored.

What should be my next step?

Dave Johnson

Now I am not talking about junk or trash, I understand how that works. But some messages, mostly ones sent automatically from a contact form I have, the subject is prefixed with (Spam?) although they are not.

Is this a Thunderbird thing, could it be an AVG thing, or windows defender or what but is so annoying

I received the following from my e-mail provider, and as a total dumbo about this, want to ask if I need to do anything about this in Thunderbird (Linux). As far as I can see, my e-mail account in Thunderbird is set to POP3, encrypted using SSL/TLs, normal password - can anyone tell me if this is OK - Thanks.

Quote: "We are contacting you because one or more of your devices or programs uses the TLS 1.0 and/or TLS 1.1 encryption protocols to connect to our mail.com email servers, or is using an unencrypted connection. This involves either access via SMTP (sending emails) or retrieval via POP3/IMAP (receiving emails).

Unfortunately, the TLS 1.0 and TLS 1.1 encryption protocols are outdated and no longer meet current security standards. To protect your email communications, soon we will no longer allow access to our mail.com servers with these outdated protocols. Unencrypted access will also no longer be possible.

After the protocols have been deactivated, the transfer of emails between your affected device or program and our mail.com servers will no longer work; i.e. no emails will be transmitted to or from your mail.com email account using TLS 1.0 and TLS 1.1. Furthermore, unencrypted SMTP/IMAP/POP3 connections will no longer function. In other words, as of Oct. 5, 2022, it will only be possible to connect if TLS 1.2 or TLS 1.3 encryption is in place." Unquote

I was horrified to receive an e-mail from mail.com, telling me that my e-mail service would effectively be withdrawn in about 3 weeks unless I upgraded TLS 1.0 to TLS 1.1. I barely understand what that means but I have done my best to comply, short of buying a new computer. I have queried the usual sources, which tell me that if I upgrade Thunderbird to the latest version all will be well, so I tried to implement some of the often contradictory advice offered - to no avail. When I started, About Thunderbird informed me that I was running version 68.10.0 (64- bit). After trying all that I could understand, About Thunderbird tells me that my Linux 18.3 (Sylvia) computer is still running version 68.10.0 (64- bit). I suppose that's a bit better than screwing the whole thing up - but not a lot. My update 'shield' icon continues to show a green tick and assures me that my system is up to date. I appear to have disappeared up my own tail pipe. If some kind soul would explain how I can extricate myself from this impasse I would be exceedingly grateful.

I originally installed Thunderbird about 2 years ago via the package installer on my Linux desktop. Currently running the 68.10 version which has never updated nor is there a function to update the program. I've read through the FAQ's and nothing was helpful. This all came to my attention when I received the following email from my email provider at mail.com a few days ago.

"Deactivation of TLS 1.0, TLS 1.1 and unencrypted access We are contacting you because one or more of your devices or programs uses the TLS 1.0 and/or TLS 1.1 encryption protocols to connect to our mail.com email servers, or is using an unencrypted connection. This involves either access via SMTP (sending emails) or retrieval via POP3/IMAP (receiving emails).

Unfortunately, the TLS 1.0 and TLS 1.1 encryption protocols are outdated and no longer meet current security standards. To protect your email communications, soon we will no longer allow access to our mail.com servers with these outdated protocols. Unencrypted access will also no longer be possible."

They indicated that mail service will stop to my Thnderbird account in a couple weeks if the problem has not been corrected.

Thank you for any suggestions about correcting the issue.

Hello everyone !

I've used Thunderbird for a few months by now, and all worked well. However, approximately a week ago, Bitdefender suddenly started to prevent Thunderbird from starting, warning me that it had detected a vulnerability exploit in thunderbird.exe.

I tried to de-install and re-install Thunderbird, on my data (D:/) disk and on my system (C:/) disk, but it didn't help... Is it possible that the vulnerability is in a config file that isn't deleted when uninstalling Thunderbird?

Thank you in advance for your help!

I get dozens of emails stating, "It looks like you're using plain-text email" or something to that effect. I see this message when I merely highlight the email in the list but without opening the email by clicking on the list entry. "Allow remote content" is set to off.

How do they know?

Thanks.

I have installed latest version of Thunderbird and all works as it should but 2 things seem wrong and not sure if bug, incorrect setting or just not allowed:

1 When I send encrypted email to myself it is automatically unencrypted and readable. I would prefer that any encrypted email I receive forces me to enter my private password every time. Can I configure this? 2 I would like to set Tbird to automatically encrypt all emails to an address I have the public key for. however It looks as if I can only set 'encrypt all' or 'don't encrypt' which means I need to manually select for each email or have to set as 'encrypt all' and then get message for almost all recipients that they don't have public key etc.

Advice appreciated.

I prefer to use S/MIME to digitally sign my email messages. Prior to Thunderbird 102.3.1, using S/MIME to digitally sign my messages was the default.

Now, for every single email I send, when I click "Send" I get the dialog box "OpenPGP Alert - Cannot digitally sign this message, because you haven’t yet configured end-to-end encryption for <email address>". I have to then select "S/MIME" from the encryption/signature menu.

It's a pain to have to remember to do this for every email I send.

I checked my account settings. "Do not use OpenPGP for this identity" is checked. The correct S/MIME certificate is selected.

How do I set the default signature method to be S/MIME instead of OpenPGP in this new version of Thunderbird?

I'm running Thunderbird 102.3.1 on Mac OS 10.14 Mojave. The Enigmail plugin is disabled. I have an OpenPGP key that I created 20 years ago on my system, and Thunderbird recognizes its presence, but I do not use it.

Hello, I'm afraid TB stopped working after I changed my gmail password. Whenever it tries to connect to the imap server, I get the oauth login prompt, fill out the password, confirm that I want to allow TB to access my gmail account, but after that, I just get the "Authentication failure while connecting to server imap.gmail.com."

I have OAuth2 set as the authentication method, I have cleared the saved passwords, updated TB, manually deleted obsolete files in the profile folder and basically tried every advice I could find, to no avail.

All worked well before the password change (the big end-of-may less secure app business did not affect me).

Currently, I have removed all my gmail accounts from TB and am trying to add them again. One of my gmail account uses 2FA, in this case, I also tried to use the app password. The other gmail account does not use 2FA, so I just used the regular password. In either case, I get the popup asking me to allow TB to access my mails, which I provide, but end up with "Unable to log in at server" message.

Any help would be greatly appreciated.

ThunderBird stopped being able to pick up email from our pop3 server.

The Error console shows:

mailnews.pop3.1: SecurityError: a SecurityCertificate error occurred Pop3Client.jsm:336:18

_onError resource:///modules/Pop3Client.jsm:336

This doesn't give me a hint as to the problem is with the security certificate. It hasn't changed recently and worked yesterday.

The cert is self-signed and expires in a few days. Previously (not recently) I had to do a variety of things to make Thunderbird happy with it.

Network Solutions upgraded their email, and I multiply-checked all my settings in Thunderbird (102.3.2) and can retrieve mail but the outgoing mail hangs and time out with an error. I just discovered it's not my settings, but there's no password listed for the default outgoing SMTP server (my own domain). (I have 2 email accounts, and listed in the "Saved Passwords" are 2 passwords for incoming IMAP plus one the other account outgoing SMTP, 3 total.)

Is there any way to add a password without deleting the default server and then adding it back in, or some other solution?

Thanks

I regularly receive and send emails with an S/MIME signature on a ECA card (certs are authenticated via the US Government). I also use a Yubikey for MFA, those certs are authenticated by our local certificate server. Several emails per day are encrypted with the certificates on the ECA card, mostly received. I use ActiveClient as the driver for the ECA card. The last few releases of Thunderbird have been particularly problematic in that 1) if the ECA card has not been previously authenticated with a PIN, and I try to send a signed email, the Broadcom card reader does not recognize when the ECA card is inserted, although it does see the Yubikey device, 2) If the ECA has been authenticated within the 10 minute timeout period, Thunderbird will let me send a signed email; 3) after the card has timed out 2-4 times, Thunderbird no longer responds after trying to read an encrypted email even if I authenticate the ECA using ActiveClient or going to a secure website that requires the ECA card for access. Note that FireFox will let me successfully re-authenticate no matter how many times the authentication has timed out.

My current issue is that I cannot get Thunderbird to respond at all, as the last thing I tried to look at was an encrypted email. Every time I restart Thunderbird, it opens on that email and I can't seem to close the tab before it locks up, then gives me the spinning wheel... Attached is a screen shot of task manager where TB is not responding. I will try rebooting next to see if I can get a cleaner start to TB get the version number, and read a couple of emails before it locks up.

I am trying to set up the calendar in Thunderbird for my mother. She uses a google calendar and it is working fine on the old computer.

However, on the new one, it lets me get as far as trying to select a calendar to subscribe to be the list is blank.

In trying to troubleshoot, I tried setting up my own calendar on a different computer and the same is happening.

Mother's is a Windows 11 and mine is a Windows 10.

In troubleshooting I came across a post that suggested that I open the dev console and by golly there is an error there.

The same error appears on both accounts/computers. [Exception... " �invalid_request��� You can't sign in to this app because it doesn't comply with Google's OAuth 2.0 policy for keeping apps secure.

You can let the app developer know that this app doesn't comply with one or more Google validation rules.

 �3https://support.google.com/accounts/answer/12379384 ��*.

�redirect_uri��urn:ietf:wg:oauth:2.0:oob:auto2�������The out-of-band (OOB) flow has been blocked in order to keep users secure. Follow the Out-of-Band (OOB) flow Migration Guide linked in the developer docs below to migrate your app to an alternative method.�Ohttps://developers.google.com/identity/protocols/oauth2/resources/oob-migration" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: resource://gdata-provider/legacy/modules/gdataSession.jsm :: login/authFailed< :: line 311" data: no] 2 gdataSession.jsm:311:25

   authFailed resource://gdata-provider/legacy/modules/gdataSession.jsm:311
   <anonymous> self-hosted:1115
   onPromptAuthAvailable resource://gdata-provider/legacy/modules/gdataSession.jsm:330
   onAuthorizationFailed resource://gdata-provider/legacy/modules/OAuth2.jsm:226
   _checkForRedirect resource://gdata-provider/legacy/modules/OAuth2.jsm:145
   onLocationChange resource://gdata-provider/legacy/modules/OAuth2.jsm:187

Where is/how do you set the calendar to use OAuth 2.0?

Email works fine is already set to OAuth 2. The calendar on the old computer works fine. Before the "choose account" window opens, it does seem that google trys to open a pop-up to enter the password, but the window closes and the "choose calendar" window that is blank open. Is this a bug? Can it be fixed?

Thunderbird version 91.xx and older used to have an option in the Composition Toolbar of the [Write] window to insert a digital signature. See attached digisig_TB91.jpg.

From Thunderbird 102.0 onwards that digital signature option is removed, though its settings in [Account Settings > End-To-End Encryption] are still there. See attached digisig_TB102.jpg.

Shall the digital signature option in the Composition Toolbar ever return?

P.S. 1. Yes, yes, I know. I can still insert a digital signature, but switching the function ON and OFF again in [Account Settings > End-To-End Encryption], is an annoyingly time-consuming hassle. 2. Do not confuse with encryption. That's a totally different function and purpose.