Thunderbird Community Forum

Whenever I do anything with email I get a message "not responding" which causes a delay for a few minutes before it proceeds This occurs with almost every action Open email, delete email, browse a different folder (eg Inbox to Sent) it suddenly started happening yesterday

I'm not sure exactly when this problem started but it could have been when I had to move my primary email from Xfinity over to Yahoo. Also not sure if this started after a recent Thunderbird update. I can not send new emails nor can I forward old emails. Haven't tried reply but suspect it is the same. This is the message I get: Sending of the message failed. An error occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Please verify that your email address is correct in your account settings and try again. All settings and passwords are correct as I can receive and send from all my different accounts using browser. I can send emails from my accounts, on my iphone, though not using Thunderbird on iphone. Account settings and passwords are the same on the phone.

Hi all,

I've been using Thunderbird for eons but yesterday morning it started freezing up constantly.

It freezes up ("Thunderbird is not responding") every time new emails are received or any time I take any action while the Inbox folder is open. So, if I delete an email it freezes for a few minutes. If I do anything pretty much, it freezes up for a few minutes. Then it comes back and I can do another action, and it freezes again. This only seems to be happening when I have the Inbox open - if I go to other folders it seems to function normally.

Things I've tried without success: - Troubleshooting mode - Adding exceptions for my profile folders to Windows Defender - Compressing Inbox (and Trash and Junk) - Repairing the Inbox index

This doesn't appear to be a memory issue - right now, memory use for my entire system seems to be hovering at just over 50%. But Thunderbird is still freezing.

My Inbox folder is very large, but it's never been an issue before and nothing significant was added yesterday when it started failing.

Any suggestions appreciated!

Thanks

I recently obtained a digital certificate for use with S/MIME. I followed the process laid out in

https://support.mozilla.org/en-US/kb/instructions-smime-certificate-using-csr

to generate my key pair, create a CSR, submit it to a CA, download the resulting certificate file, and import it into Thunderbird. I also imported the intermediate certificate showed as the issuer for my cert, which in turn appears to be signed by one of the certs trusted by default in Thunderbird.

Having done that, I see the certificate showing up under "your certificates" in the Certificate Manager, with a "not before" date in the past and a "not after" date in the future. So everything appears to look correct, but when I try to send a signed email I get the following error message as a pop-up:

"Sending of the message failed. You specified that this message should be digitally signed, but the application either failed to find the signing certificate specified in your Mail & Newsgroup Account Settings, or the certificate has expired."

And if I look at the console in developer tools I see:

"mailnews.send: NS_ERROR_FAILURE: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIMsgComposeSecure.beginCryptoEncapsulation]

   _startCryptoEncapsulation resource:///modules/MimeMessage.sys.mjs:488
   _writePart resource:///modules/MimeMessage.sys.mjs:536
   createMessageFile resource:///modules/MimeMessage.sys.mjs:82
   createAndSendMessage resource:///modules/MessageSend.sys.mjs:147
   CompleteGenericSendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6456
   GenericSendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6372
   SendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6984
   doCommand chrome://messenger/content/messengercompose/MsgComposeCommands.js:1085
   doCommand chrome://messenger/content/messengercompose/MsgComposeCommands.js:1263
   goDoCommand chrome://messenger/content/globalOverlay.js:99
   oncommand chrome://messenger/content/messengercompose/messengercompose.xhtml:1
   openWindowPrompt resource:///actors/PromptParent.sys.mjs:75
   receiveMessage resource:///actors/PromptParent.sys.mjs:18
   openPrompt resource://gre/modules/Prompter.sys.mjs:1228
   openPromptSync resource://gre/modules/Prompter.sys.mjs:1071
   alert resource://gre/modules/Prompter.sys.mjs:1375
   alert resource://gre/modules/Prompter.sys.mjs:78
   fail resource:///modules/MessageSend.sys.mjs:358
   createAndSendMessage resource:///modules/MessageSend.sys.mjs:157

MessageSend.sys.mjs:149:32

   createAndSendMessage resource:///modules/MessageSend.sys.mjs:149
   CompleteGenericSendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6456
   GenericSendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6372
   SendMessage chrome://messenger/content/messengercompose/MsgComposeCommands.js:6984
   doCommand chrome://messenger/content/messengercompose/MsgComposeCommands.js:1085
   doCommand chrome://messenger/content/messengercompose/MsgComposeCommands.js:1263
   goDoCommand chrome://messenger/content/globalOverlay.js:99
   oncommand chrome://messenger/content/messengercompose/messengercompose.xhtml:1
   openWindowPrompt resource:///actors/PromptParent.sys.mjs:75
   receiveMessage resource:///actors/PromptParent.sys.mjs:18
   openPrompt resource://gre/modules/Prompter.sys.mjs:1228
   openPromptSync resource://gre/modules/Prompter.sys.mjs:1071
   alert resource://gre/modules/Prompter.sys.mjs:1375
   alert resource://gre/modules/Prompter.sys.mjs:78
   fail resource:///modules/MessageSend.sys.mjs:358
   createAndSendMessage resource:///modules/MessageSend.sys.mjs:157"

I can't make sense of the error message, since the certificate appears under "your certificates" in the certificate manager, and it does not appear to be expired. Can anyone suggest how to determine the root cause and fix it? Does it matter that the certificate is for a non-default identify I've added for the account in Thunderbird? Does it matter if the "common name" in the certificate doesn't match the "Your Name" field in Thunderbird? Any pointers on what to check would be appreciated.

I am running Thunderbird 140.11.1esr on Windows 11. I have many email accounts mainly with btinternet which I access with Thunderbird. Most of them work fine but when I tried add another email account with a very large inbox all of the folders download fine but the inbox itself doesn't show any messages but the number alongside the folder says 220479 (which I think is unread messages). I have tried this on 2 different laptops with the same result. I have tried to Repair the folder. The folder is selected for offline use and I have tried to press the Download now button.

Any ideas?

Thank you

Paul

I received a spam message this morning that had a "Disposition-Notification-To" (aka Read Receipt) line that had MY email address on it. I honestly don't know why a spammer would do this - but that's not the issue. I have Read Receipts disabled, but Thunderbird generated an email (to me) and sent it to my mail host. This seems like a bug. Even if the Read Receipt has my email address on it (making it mostly harmless), Thunderbird shouldn't have generated the message. Or am I missing something? Thanks.

Yesterday I had to change my Spectrum email - I have an old road runner email address and swapped over to spectrum.net server from the old server. In this process I had to update my password to access the server.

When I updated per the instructions from Spectrum I was able to do a normal download into my Thunderbird inbox. This triggered me having to input the new password. I did check the box to update the password and save it. After the one time download I cannot get Thunderbird to download emails. I can send emails with no problems but cannot download. No way can I get a download - it does not on initialization, at the set time nor with the manual request.

Spectrum is no help - their web mail works and it's my problem. I realize this is an old system, legacy and all that - anybody got a magic fix?

Any idea on how I messed this up?

Thanks.

TB Authentication Failed with new outlook.com accounts Definetely not a problem of username, password, etc: everything double checked. No problems with old outlook.com accounts or connecting BlueMail for Windows to the new created accounts, but still I would like to use Thunderbird...

Greetings, Is there a way to change the order of threads in a folder? The all appear with the oldest message in the thread at the top and new emails that come into that bunch are buried at the bottom with no indication that they are there. I'd like to have the newest entry to the thread at the top and to have the threads with new messages highlighted until the message is read. Possible? Many Thanks

I have an Orange.re email address, and whilst I can receive emails, I am unable to send emails. Any ideas why? I have verified the smtp server and settings.

The two accounts are separate and resolve correctly using thunderbird for android on my Samsung tablet. I tried deleting the account that is not receiving its own mail and reinstalled it and got the same result.

Since a few days, there seems to be an italicized copy of each folder in my mailbox. I tried multiple times to delete them, but, although they seem deleted, they appear again when I start up Thunderbird. I already contacted the hosting service, but they replied that this is an issue of Thunderbird.

Hi, I was just contacted and completed a survey, and signed up for your newsletter. I saw what looks like new products. I wondered if I need to download/upgrade?. Thanking you

Had to change my ISP password which I did. I then removed all passwords from Thunderbird. I then downloaded the newest version (listed below) After the download I clicked on get messages - no response - did not ask for a password. My ISP pop address is properly listed. I went further and clicked on write - a box opened up asking for a password. Of course I entered my new ISP password and it showed up under saved passwords (smtp etc). I can write and send messages but not receive. I would appreciate a fix to be able to download messages - I miss my Thunderbird. Thank you - I must admit I'm not very teck savvy

I have forwarded (from my Thunderbird account) an email from our local hospital about an appointment to my mailfence address three times now, but all three were deemed undeliverable by the mailer-Daemon. I removed all links on the third attempt in case that was the problem, but no luck.

Error code: 554 Rejected : Spam ?

For further assistance, please send mail to postmaster.

How do I do that? Is my question. Is there a 'Postmaster' address to use?

Many thanks David Edwards

cannot receive or send email says to login to server mail.twc.com failed Also says unable to authenticate to outgoing server SMPT check PW did and still not working. Spectrum say server is failing to communicate with their server.