Not a Valid Signature Error While Other Clients Validate It

Hi everyone, I'm encountering an issue with Thunderbird (version 128.5.1.esr) on Windows 11 with the latests updates that I can't seem to figure out. Whenever I receive … (citește mai mult)

Hi everyone,

I'm encountering an issue with Thunderbird (version 128.5.1.esr) on Windows 11 with the latests updates that I can't seem to figure out. Whenever I receive a digitally signed email, Thunderbird reports that the signature is "not valid" accoridng to the provided screenshot.

Here's the strange part:

The same email shows a valid signature in other mail clients, including Outlook (iOS, Android, Windows, macOS) and Apple Mail on macOS.

The email is sent using a golan application (GitHub Repo https://github.com/theexiile1305/go-mail) , so it should be consistent across the board.

I can't understand why Thunderbird alone is flagging this as invalid. Has anyone else faced this issue or knows what might be causing it? Could it be related to how Thunderbird verifies signatures or interacts with certain certificates? How can I access the logs to get a deeper insight into this issue?

Thanks in advance for any insights!

Asked by Michael Fuchs acum 13 ore

impossibilité d'intégrer un compte gmail sur un ordinateur de bureau

Bonjour, sur mon ordinateur de bureau, je n'arrive pas à créer un compte Gmail dans Thunderbird : impossibilité d'accéder à la fenêtre qui demande au compte gmail l… (citește mai mult)

Bonjour, sur mon ordinateur de bureau, je n'arrive pas à créer un compte Gmail dans Thunderbird : impossibilité d'accéder à la fenêtre qui demande au compte gmail l'autorisation à accorder à Thunderbird d'accéder aux dossiers. j'ai pourtant vérifier adresse et mot de passe. J'arrive sur une fenêtre qui me demande de saisir le mot de passe pour accéder au compte gmail... mais ça tourne en rond... Merci pour votre aide.

Asked by BRAME Jacques acum 14 ore

Thunderbird

Ho contattato il provider di posta “sicurezza postale.it il quale mi conferma che il mio certificato non è revocato. Non capisco pertanto perché la mia posta certificata … (citește mai mult)

Ho contattato il provider di posta “sicurezza postale.it il quale mi conferma che il mio certificato non è revocato. Non capisco pertanto perché la mia posta certificata non funzioni..

Asked by Carmine Calabria acum 14 ore

managing .eml files

I've written a program that runs every 15 minutes to look for any new emails that have arrived. So... (1) Can all emails be received automatically as separate .eml files… (citește mai mult)

I've written a program that runs every 15 minutes to look for any new emails that have arrived. So... (1) Can all emails be received automatically as separate .eml files? (2) After my program reads the .eml file, is it ok for my program to delete the file? (or is that going to screw up an index somewhere?) (3) I will be using Thunderbird for one email address with POP3 and SMTP. I will be using MS Outlook for other email addresses, also with POP3 and SMTP. Will Thunderbird and Outlook live happily together?

     Thank you,     Art Lieberman

Asked by Art Lieberman acum 21 de ore

Separator line after email signature

Hi All, Recently there has been so much of space coming in after the email signature of every reply or forward I do (before the email separator line). Can you please adv… (citește mai mult)

Hi All,

Recently there has been so much of space coming in after the email signature of every reply or forward I do (before the email separator line). Can you please advise how can I remove it. Happened with the latest thunderbird update.

Regards,

LS

Asked by lsingh acum 2 luni

Last reply by lsingh acum 21 de ore

Every start of Thunderbird 128.4.0esr on Windows 11 I get the message: "Zum Ausführen der gewünschten Aktion ist kein E-Mail-Programm zugeordnet. ..." (No email program is assigned to perform the desired action)

Every start of Thunderbird 128.4.0esr (64bit) on Windows 11 (64bit) I get a dialog with the message: "Zum Ausführen der gewünschten Aktion ist kein E-Mail-Programm zugeor… (citește mai mult)

Every start of Thunderbird 128.4.0esr (64bit) on Windows 11 (64bit) I get a dialog with the message: "Zum Ausführen der gewünschten Aktion ist kein E-Mail-Programm zugeordnet. Installieren Sie ein entsprechendes E-Mail-Programm, oder erstellen Sie in der Systemsteuerung unter "Standardprogramme" eine Zuordnung, wenn bereits ein Programm installiert ist."

Thunderbird is the standard E-Mail programm in "Standardprogramme". Reinstallation of Thunderbird did not change the behavior. User account is not administrator. For installing Thunderbird, the administrator password was requested. Windows 11 is freshly installed. Thunderbird has been installed as one of the first programms. Windows is: Windows 11 Pro, Version 24H2, installed 10.10.2024, build 26100.2033. Dialog appeared right from the beginning, even before a profile was imported, and at every program start.

I post-installed two extentions, but the dialog showed up before and after installation and also if I disable them. The dialog appears right after the Thunderbird window has been created (that is after the master password entry of the profile).

Playing around with settings, I experienced, that switching the Thunderbird language from German to English (US), the dialog and message disappear. Could you please fix it with the German language pack?

Asked by volker.gloeckel acum 1 lună

Last reply by volker.gloeckel acum 1 zi

How do I reinstate notification of number of new emails in my taskbar icon --NEW SOLUTION

Following on from the archived question "How do I reinstate notification of number of new emails in my taskbar icon" at https://support.mozilla.org/mk/questions/1395000 .… (citește mai mult)

Following on from the archived question "How do I reinstate notification of number of new emails in my taskbar icon" at https://support.mozilla.org/mk/questions/1395000 . This question is solved and archived, but I had trouble understanding the solution and I think others may also, so I have found another solution to add the new emails (red numbers) to the Thunderbird tray icon on Windows.

Tools>Options>Add-ons Manager> (search) Windows Taskbar Unread Badge (--Put an unread mail count badge on the Thunderbird icon in the Windows taskbar--) > Add to Thunderbird.

Asked by devlinder acum 22 de ore

Cannot access emails after automatic upgrade to 128.5.1esr 32Bit !

My Thunderbird had an automatic upgrade this week to 128.5.1esr 32Bit. Since then, I have not been able to pull down email for any of my accounts. When attempting to pu… (citește mai mult)

My Thunderbird had an automatic upgrade this week to 128.5.1esr 32Bit. Since then, I have not been able to pull down email for any of my accounts. When attempting to pull email from remote servers, the Thunderbird status message is "Checking server capabilities ....". This has gone for hours with no change, or the attempt just stops with no status update and no emails. This occurs regardless of VPN usage. What happened and how do I fix this ?!?!?

Asked by dragonboy acum 1 zi

Last reply by Googlethunderbird acum 23 de ore

Thunderbird constantly crashing

I have been using Thunderbird for many, many years now and been happy with it. However last 6 months or so, it has been constantly crashing, often several times a day. … (citește mai mult)

I have been using Thunderbird for many, many years now and been happy with it.

However last 6 months or so, it has been constantly crashing, often several times a day. Crash reports almost never get sent as it says there is a technical error.

Using a HP Spectre 360 (7 years old) with Windows 10. All windows updates have been applied, and constantly virus checked etc. No other programs giving me grief like Thunderbird which is the most important program. Before Thunderbird I used Eudora which was also great. Always regretted changing to Thunderbird.

I am now over it and Thunderbird. How do I transfer all my emails, attachments etc going back 10-12 years or so to a new email program.

Any suggestions regarding a better email client. Don't want to use Outlook. Have been looking at Proton Mail.

Asked by John acum 5 zile

Last reply by John acum 23 de ore

Slow downloading and sending of emails. Started 2 days ago.

Until two days ago TB downloaded and sent emails quickly. Now downloading is delayed. The subject shows up but when you click it shows nothing until it finishes downloadi… (citește mai mult)

Until two days ago TB downloaded and sent emails quickly. Now downloading is delayed. The subject shows up but when you click it shows nothing until it finishes downloading. Similar delay with sending. When I send it takes about 30-45 seconds to complete the sending of an email. I have not made any adjustments to the settings.

How can I resolve this? Thank you

Asked by Christopher Lehn acum 23 de ore

Lessons from a new user

A person might become dissatisfied and frustrated with Thunderbird because some functions do not work as one might expect without modification and because the program is … (citește mai mult)

A person might become dissatisfied and frustrated with Thunderbird because some functions do not work as one might expect without modification and because the program is more complex (and customizable) than other e-mail apps. When I first tried using Thunderbird, I gave up on it quickly. Then I returned, learned more about how it works, and am now very satisfied with it.

I am not an expert, but I learned some things that may be useful to other people.

Please correct any inaccurate information and add to incomplete information.

My experience was with Thunderbird 128 on a Macintosh computer.

I suggest that you make these changes in the order in which they appear here.


MESSAGE FORMAT

Thunderbird uses an mbox format (there is more than one mbox format) for storing messages by default. It can also use the maildir (eml) format. Eml is better, at least in some ways. To use the eml format, one must change a setting before setting up accounts. The setting is in Thunderbird settings - General at the bottom. It is “Message Store Type for new accounts”. You may want to set it to “File per message (maildir)”.

A support article from 2019 warns users about this format: https://support.mozilla.org/en-US/kb/maildir-thunderbird

But some users report that it was working well as early as 2016: https://www.wilderssecurity.com/threads/thunderbird-from-mbox-to-maildir.389599/

As of December 2024, there is no warning within Thunderbird. This option is presented as a standard feature. I do not know if using the format causes any problems. A list of known bugs is here: https://bugzilla.mozilla.org/buglist.cgi?classification=Client%20Software&classification=Components&f1=short_desc&f2=OP&f3=short_desc&o1=nowordssubstr&o3=anywordssubstr&product=MailNews%20Core&product=Thunderbird&resolution=---&short_desc=maildir&short_desc_type=allwordssubstr

If you set up accounts before making this change, then you will want to create a new profile and make the change there before setting up accounts. The process for creating a new profile starts with Help - Troubleshooting information - about:profiles.

I have not been able to get messages in local folders stored in the maildir/eml format. I do not know if that is possible. Does anyone know if it is?


THREADED CONVERSATIONS

Thunderbird threads conversations by default. Many people don’t want threaded conversation. There are several things one can do to prevent and change threaded conversations.

First, go to Settings - General - Config Editor. Search for mailnews.default_view_flags and change the setting to 0. This setting should change the default view.

If threaded conversations do appear, there are at least two ways to change them to unthreaded.

1) View - Sort by - Unthreaded affects the current message list.

2) Copy your preferred message list settings from one list to another. At the far right of the column headers in every message list, there is a button to “Select columns to display”. Click on it. At the bottom of the list that appears, there is a command to “Apply current view to …” If you have folders with “children” folders, you can apply your preference of no threads to the parent and the children in one step.

Official documentation on threading is here: https://support.mozilla.org/en-US/kb/message-threading-thunderbird


SET UP ACCOUNTS

I have included this step mostly so that you can see what I suggest that you do before and after setting up accounts.


EXCHANGE/OFFICE 365/MICROSOFT 365 ACCOUNTS

If you have an Exchange/Office 365/Microsoft 365 account, Thunderbird will set it up as an IMAP account. If you want to use it as an Exchange account, you need an add-on. “OWL for Exchange” is the most popular one. There is at least one other add-on that does the same things. I do not know how well they work. I chose not to install “OWL for Exchange” because it seemed to require more access than I was comfortable granting.

When you use an Exchange account as an IMAP account, you do not have to specify a location for sent messages. They will be saved in the “Sent Items” folder, not the “Sent“ folder. If you specify a folder in account settings - Copies & Folders, you will have duplicates.

Some people that said that there are problems with these different sent mail folders because of how Apple Mail handles them, at least on the iPhone. But Apple seems to handle these accounts properly as Exchange/Office 365/ Microsoft 365 accounts on both the iPhone and the Mac, and it seems to use the proper folders. So I suspect that the issue has to do with Thunderbird setting up these accounts as IMAP accounts.

To ensure that all e-mail apps that you use to access your Exchange account store deleted messages in the same place, I think you want to go to account settings, server settings, and have deleted messages saved in “Deleted Items”.

Native support for Exchange mail functions (only mail) is under development. https://wiki.mozilla.org/Thunderbird:Exchange


IMPORT LOCAL FOLDERS

You may have messages stored in local folders in another e-mail app. The easiest way to get them into Thunderbird is 1) to export them in mbox format (or just copy the mbox folders if the messages are already stored in an mbox format) and 2) put the mbox folders (without file extensions and index files) into the folder (directory) Profiles/[your profile]/Mail/Local Folders.

On the Macintosh, the Profiles folder is in ~/Library/Thunderbird.

“~” indicates the user, as opposed to the system. So the full path is: Macintosh HD/Users/[your computer account name]/Library/Thunderbird/Profiles/[your profile]/Mail/Local Folders.


MESSAGE LIST WINDOW SETTINGS

Once you have your columns set as you want them, you can use the next-to-last option in “Select columns to display” to copy your settings to other message list windows.

To set the default sort column and sort order, use the configuration editor (Settings - General - Config Editor …”.) To get the sort order typical of e-mail apps, descending by date, set mailnews.default_sort_type to 18 (date) and mailnews.default_sort_order to 2.

More information about sorting options is here: https://support.mozilla.org/en-US/questions/1432391


PREFERRED FONTS

To set your preferred fonts, you probably must set them in two or three places. One of them is easy to miss.

Go to Settings - General - Language & Appearance. Set your preferences for “Fonts & Colors” there.

Then click on “Advanced …”. In the dialog window that appears next, you probably have to set your preferences in two places: under your main writing system, e.g., “Latin” and under “Other Writing Systems”.


COMPOSE WINDOW

The header layout in the compose window has wasted space and crunched headings that annoyed me. If these things annoy you, learn how to correct it here: https://support.mozilla.org/en-US/questions/1477069

I set the left margin to -60px.


DASHED LINES BETWEEN MESSAGE AND SIGNATURE

You can remove these dashed lines by going to the configuration editor (Settings - General - Config Editor …”) and setting mail.identity.default.suppress_signature_separator to true.


WORD WRAP IN THE COMPOSE WINDOW

To get better word wrapping in the compose window, use the configuration editor to set mailnews.wraplength to 0. This may be useful only for plain-text messages. I don’t know.

Using the Edit - Rewrap command (with a shortcut) is useful sometimes too.


SEND PROGRESS INDICATOR WINDOW

The window that pops up after you give a command to send a message may annoy you. You can disable it using the configuration editor (Settings - General - Config Editor) by setting mailnews.show_send_progress to false.

The compose window will still remain visible until the message is sent. There is a progress indicator at the bottom of that window that makes the pop-up window redundant.

You can set Thunderbird to “send in the background” so that the compose window disappears after the “send” command. Do this by setting mailnews.sendInBackground to true and offline.send.unsent_messages to 1. There are some trade-offs in this approach. See here for more information: https://www.summet.com/blog/2015/11/16/making-thunderbird-send-messages-in-the-background-like-outlook/

I have decided not to use this approach because it puts a message in the outbox of the Local Folders account and never seems to send it unless I give it the File - Send Unsent Messages command.

Does someone know how to have messages sent in the background but immediately and without intervention?


NOT ALL IMAP FOLDERS APPEAR

Which IMAP folders appear in an account depends on 1) whether or not the account is set to show all folders or only subscribed folders, and 2) which folders are subscribed to.

The account-level setting for showing all or only subscribed folders is under account settings: Server Settings - Advanced.

If you set Thunderbird to show only subscribed folders, then right-click on each account name in the folder pane, select “Subscribe …”, and check the folders that you want to subscribe to. You will have to check this setting every time you create a new IMAP folder.


GLOBAL SEARCH

Some people are frustrated by global search and conclude quickly that it does not work. In my limited experience, it works fine. But one must understand that searching is set on a folder-by-folder basis. Right-click on a folder, select “Properties”, and make sure that the folders you want to search are set to be searched. I believe that “Trash” is not set to be searched by default.

Asked by mozilla664 acum 1 zi

Last reply by david acum 1 zi

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Thunderbird: Email is broken, all gone, Only “chat” window shows.

Thunderbird: 128.5.1esr (64-bit) Using the provided interface I am unable to find any of my email, or get “chat” to go away. I am quite frustrated. What can I do? … (citește mai mult)

Thunderbird: 128.5.1esr (64-bit)

Using the provided interface I am unable to find any of my email, or get “chat” to go away.

I am quite frustrated. What can I do?

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Answered by frisbin acum 1 zi

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I opened Thunderbird and all my emails and email accounts are gone. It wants me to set up all over again. There is nothing there but a screen that says set up your email … (citește mai mult)

I opened Thunderbird and all my emails and email accounts are gone. It wants me to set up all over again. There is nothing there but a screen that says set up your email account with user name and password.

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Email download freezes using POP to Comcast - since yesterday am.

I've been using POP email with Comcast for years, and haven't changed anything. But I noticed a new version of Thunderbird was loaded two days ago - might be the problem?… (citește mai mult)

I've been using POP email with Comcast for years, and haven't changed anything. But I noticed a new version of Thunderbird was loaded two days ago - might be the problem?

Can someone connect to my Win 11 PC to figure out why incoming mail is so constipated, please?

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