Thunderbird Community Forum

I am using Thunderbird as an email client. I have the option set to normally send emails as plain text. If I receive an email that is formatted and then reply, the email is composed as unformatted. I wan the reply to be formatted.

Is there anyway Thunderbird can detect formatting and automatically format the reply the same as received?

How can I reply to an already formatted email so that the reply is formatted?

Thunderbird has worked fine for me over the years. I rarely send mail but started receiving a message that smpt server refused connection and contacted Network Solutions support. Their advice is below but I have clicked Clear Security Exception many times but can't get beyond it. Any ideas would be welcome.

To configure your mailbox in Thunderbird, please follow these steps:

   Open the Thunderbird application.
   Select Add Mail Account.
   Enter your Full Name, Email Address, and Password.
   Click Continue. 
   When you reach the page titled "Connect your email settings", click Edit Configuration.
   Change both the Incoming Server Hostname and Outgoing Server Hostname to mymail2.myregisteredsite.com.
   Click Connect.
   Enter your mailbox password when prompted.
   After entering the password, a warning message may appear. Select Confirm Security Exception.

Please note that you may need to click Confirm Security Exception three or four times before the account setup is completed successfully.

The reason you are receiving the security warning is that the mailbox is configured to use Connection Security: None. This is necessary because your mailbox is hosted on a legacy email service that is not compatible with SSL/TLS or STARTTLS encrypted connection methods. As a result, Thunderbird may display security warnings during the configuration process.

If you require further assistance with Thunderbird configuration, we recommend contacting your personal IT professional or someone familiar with email client setup and administration, as third-party email client configuration falls outside our support scope.

Every time I send an email to more than 25 or so recipients, the message does not send and I need to reverify my Hotmail account. After I do that, I resend and it goes thru fine. Not sure what the problem is. Thanks,

Ron K

I believe this is because Plusnet are transferring me to Greenby, and I am now required to sign in using my full email address, i.e. ***@madasafish.com. I can't figure out how to change this, it will only let me change my password. Please can anyone help -urgently!

I use Thunderbird with a info@... account hosted by TransIP.

When I send an email, especially when I reply to a previous email and even more when this was my own email, the sent email is not always saved in the Sent folder: neither in the webmail of TransIP nor in Thunderbird. It seems random when emails are and are not saved in the Sent folder.

The replies are sent through; the recipient receives them.

What can I do?

I just added a Gmail account to Thunderbird. It is showing the following folders: Inbox Drafts Sent Sent All Mail Spam Spam Trash Important Starred

I would like to delete the duplicate folders, all mail, important and starred. Any idea how to do that? OS is Windows 11 Pro on my desktop PC.

Appreciate information.

Hi there, I have several email accounts I use Tbird to manage. One of those is a hotmail account. I have the settings setup correctly for IMAP synchronization. But, after the initial pull of messages, the connection to the server seems to fail? For example, I open tbird, it pulls in new messages, run filters, etc... If I come back and try to reply to a message, the outgoing server will timeout (if you test the outgoing server in settings, it connects. If you reply as soon as you open tbird, it will send a message from that outlook account). I believe this issue is more than just the outgoing server. For example, if I move an email to a different folder, it won't register the move until I reopen tbird? Similarly, sometimes if I try to open a message after tbird has been running for a while, the message will not open/fail to load.

These issues seem to be impacting only this outlook account. I'm really not sure where to go with troubleshooting and looking for guidance.

much thanks, Ryan

The support page explains how to mark multiple folders for a search but that doesen't seem to work anymore?

https://support.mozilla.org/de/kb/virtuelle-ordner-verwenden?csrfmiddlewaretoken=59854txNot7DsBgEPVJhp2nEQIij4NizVeyEiZhVnrQyBj2HPkK0gRLbyL3iD3se&revision_id=295410&source=footer¬-helpful=

See “Create a Virtual Folder,” 5th, gray box labeled “Tip” It doesn’t seem possible to select more than one folder?

T'bird 153.5.0 esr on Windows 11 25H2.

Main Inbox folder (using POP3) is about 13 GB

Thunderbird crashes and/or becomes unresponsive on opening. This happens in both normal mode and safe mode.

Typically, there first is this error message: "The account is being processed. Please wait until processing is complete to get messages." I click OK on that message, and after a while, Tbird becomes "unresponsive."

I've tried deleting Inbox.msf, but that didn't help.

Sometimes, I get this error: "Unable to write to the mailbox. Please ensure the file system allows you write privileges and you have enough disk space to copy the mailbox." There have been no changes in Windows accounts, so it seems highly unlikely that there is a permission issue.

The hard drive on this system has about 233 GB free.

Where do I go from here?

Despite my attempts to find an error in my outbound mail settings, I keep getting the message below.

The test of the connection to the server passes everytime, but the mail form will not allow mail to be sent.

It's the ESR version. It all started when I added a vcard to my outbound mail.

"Sending of the message failed. An error occurred while sending mail. The mail server responded: Sender refused. Please verify that your email address is correct in your account settings and try again."

I just purchased a new PC. HP OmniDesk Slim model with Intel Core 13, Win 11 home version, 8 GB DDR5, 512 GB SSD. I just read a previous article, "Move Thunderbird data to a new computer." When you make the move, does it also bring your account settings with the move? And by the move, I mean copying and pasting from old PC to new PC. Or do I enter this info manually? I am moving data from old HP w/win 10 originally installed, to new HP w/win 11. I also read a previous article on forum, "An alternative method for manual transfer between Windows 10 and Windows 11 computers." This was also included in this article. "This section assumes you have a default Windows installation and will work on computers upgraded to Windows 10 from previous Windows versions." My old computer had win 10 originally installed, not upgraded, (as stated above). Any info/help you can offer will be deeply appreciated. Thanks

Hello everyone. From time to time, the "Attachments" button stops working. It can be clicked, but nothing happens. Occasionally, restarting the PC or the email client helps. More often, the only solution is to reinstall the entire program—which also means losing access to years' worth of emails, as I then have to wait for them to be re-downloaded from the IMAP server. What should I do? I’m using the latest versions.

I have a proper profile stored in an backup and 1 *.msf wasn´t restored on the new computer, but it is needed as soon as possible. My tries to restore it wasn´t successfull, there are no needed things to restore. The needed msf is located in the new profile, and I can´t see the item. Therefore I need help for restoring this particular *.msf. Greets The Texman aka K.-P. Aldag

Hello, I recently converted a very large OLM (Legacy Outlook on Mac) to Thunderbird on my Macbook. I added an Office365 (work) Account to Thunderbird, and the Outlook Addon App for Thunderbird. I can receive emails to the Office365 account no problem, but cannot Send emails from the Thunderbird (Host) Office365 email, unless I select the Default Outgoing Server which is a different email. I have reset Passwords, related Server settings, and Account Config settings numerous times.

The only other option is to send from the Outlook Addon App ,,, this works fine, But I cannot access the Thunderbird Local Folders from the Outlook Addon.

Any assistance with this issue is truly appreciated. TD

Recently I updated Thunderbird. When it rebooted, all my emails in the INBOX and ARCHIVED folders were gone. I have tried the usual solutions, including REPAIR FOLDER buttons. Those archived messages were important. Any chance of finding them?