Форум поддержки Thunderbird

All of a sudden I can not use the Bcc to send out mail. A dialog box appears no matter the selection of any address from address book to send to, including myself. See screen shot below.

I upgraded to Ubuntu 22.04, with the download Thunderbird Mail was also installed. It quite often freezes requiring me to shut the computer down and reboot. Also it will not allow me to send BCC mail. When it freezes, I get the option to wait or force shutdown. Any advice would be welcomed.

Rodney Jackson.

This is to re-open thread 1296678.

I too have this problem, I suspect a failure mode and I have a work-around.

I'm now on TB 91.8.1 build 20220413002405 but this has been going on for at least 4 years - I reported it (here, I think) some years back but no one did a fix so I built the work-around.

For context purposes I now have over 4G of mailboxes going back to at least 1993 so not easy to do housekeeping. I started using TB in approx 2011 and imported the old mail from my Eudora installation at that time, meaning 8 years of use before the problem started. I also used Thunderpunger before the author ended support(and it doesn't work now) and I have noticed some odd artefacts coming from its use, primarily whole (very old) mail boxes suddenly appearing as "new". The mail boxes are nested to at least 8 deep in some places. I also have about 40 active filters. The installation is still using POP3 and fetches mail every 5 mins. The filters were all set to run on fetching new mail and essentially file the messages in different places. The point is that it is a substantial chunk of files. Nice and efficient (not) but its what I use.

The filters started failing in approx 2019 in that on a mail fetch an error message saying "unable to access mailbox blah" would appear. This appeared to be worst at system start-up when the overnight mail was streamed in. This was a pain because you have to click "ok" each time the warning box popped up. I also noticed that when the filters ran successfully they all worked ok. At first this seemed to always be certain mail boxes but there were no problems with the file system. In fact I followed the suggested remedies when I posted the thread in the support forum without improvement. I also attempted deleting the mailboxes and making new ones elsewhere in the mail system and thus in the file system but the problem persisted. It looks like TB is running out of resources during the pass on "run filters when fetching new mail" when this runs the first time on boot, but not subsequently.

The work around was to switch off all the flags saying "run on fetching new mail" and instead "run [on inbox] every 10 minutes". The problem is now completely absent.

Over to you guys

I have my University of FLorida (UF) email downloaded in thunderbird. It is IMAP so whenever i delete something on the UF website it then deletes in Thunderbird and vice-versa. I am now experiencing for the first time in years a few emails missing in Thunderbird, but that are in the UF website. See for example the email below from PC-Progress I received yesterday (5/16th) at 10:28 am. It shows on the website under imbox, but not in Thunderbird. When in Thunderbird I put the PC-progress email in the search box it founds the email (see screenshot below), but when I click on it it goes to the conversation and the email is not there. Any suggestion?

Hello,

I encounter an error when sending a message with an on-premises exchange server. With Windows, an error window appears and is automatically closed. On Linux, the window remains displayed, which is problematic. In both cases, the message is sent and copied to the sent messages folder The windows error message says "copy to sent folder error" (obviously wrong) In console the error raised after QUIT command of mailnews.smtp with the error code 2152398868.

the error was reported by several of our users and I was able to reproduce it.

Console Log : mailnews.smtp: Message sent successfully. SmtpClient.jsm:1293:21 mailnews.smtp: C: QUIT SmtpClient.jsm:579:19 mailnews.smtp: error { target: TCPSocket, isTrusted: true, name: "NetworkError", message: "Network", errorCode: 2152398868, srcElement: TCPSocket, currentTarget: TCPSocket, eventPhase: 2, bubbles: false, cancelable: false, … } SmtpClient.jsm:434:17 mailnews.send: Sending failed; Le message n’a pas pu être envoyé car la connexion au serveur sortant (SMTP) « ******* » a expiré. Veuillez essayer à nouveau., exitCode=2153066800, originalMsgURI= MessageSend.jsm:336:27 mailnews.smtp: S: 221 2.0.0 Service closing transmission channel SmtpClient.jsm:413:17 mailnews.smtp: Closing connection... 3 SmtpClient.jsm:153:17 mailnews.smtp: Socket closed.

Hi,

I have several email accounts in Thunderbird (91.8.1 (64-bit), but for some reason there are always issues with my mail.com [not gmail] account. Emails have been ending up in people's Spam folders, and often when I try to send an email I get the following error message in Thunderbird: ______________________________________________

Sending of the message failed. An error occurred while sending mail. The mail server responded: Requested action not taken: mailbox unavailable Failure sending mail. Try again later. Please check the message recipient "[email@address.example]" and try again ______________________________________________

This happens at random, with different recipients - when I send the same email from my account via the mail.com website, this does not happen, so it must be a Thunderbird issue? Please help!

My Thunderbird app has not received or notify me of any emails for the past two days. I've had to use it on google in able to see my emails. It just has a continuous loading sign when i say get mail and nothing comes through. I have tried uninstalling the app and redownloading it too

This has happened sometime ealier already, but now it's worse. I got an email from friend, including approx 10MB attachments (photos). When I try to open that, Thunderbird freezes. The whole PC gets slow. I need to close Thunderbird so I can continue working again. While it's opening the email, I cannot do anything in Thunderbird (just to wait... endlessly). Earlier I fixed this by closing it first, then restarting the PC, but now it didn't work. Also reinstalled, but no help. Also deleted that email from gmail, still no effect. What to do now?

I am using Windows 7. I also tried to open with Antivirus in off mode, no help anyway.

"Error Message-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." I have two addresses(Same Domain). Address A works fine when sending a message. I get this error message when sending a message using address B. No problem receiving mail with either address. What do they mean by "Mailbox unavailable"? . I checked the outgoing server of address B, It is not added automatically so i was added manually, But still it is getting an error. Your help would be appreciated.

While browsing e-mails, e-mails open and when the e-mail has no photo attachments, the program behaves normally, the messages are loaded quickly. When the message includes attachments in the form of photos, various jpg, png formats, the program hangs for a moment, about 10 - 25 seconds, it happens only in the case of e-mails containing photos. I have 4 computers with the same configurations, with the same program, the same configuration, the same windows 10, the settings are the same on all computers, the same account type (POP3), the same e-mail end, and stranger the problem occurs on 2 computers and on the other 2 no, on the other 2 they have the same email with the photo message, the email is loaded very quickly, on the other 2 you have to wait as I wrote above until they are buffered, and the other 2 computers open the message preview in the same way, I couldn't find anything about it in the help, please help.

I have over 200,000 emails on a gmail account I'm hoping to sync with Thunderbird. My goal is to have them all downloaded onto a local server on my computer so I can refer to them all offline. I've been periodically pressings "get messages" which used to download messages 1000 at a time (I'm not sure why it doesn't continually sync with my inbox!) Though, sometimes it would download 2-3 at a time which was frustrating and fairly futile. Now, it's stopped downloading entirely. How do I keep syncing my inbox?

Hello, The scrolling speed of the different toolboxes in the software became much too fast with the pad on my computer (Zenbook 14"). It didn't do that before the last update. Am I the only one? I lose a lot of time every day with this bug.

Thanks :-)

I am trying to setup support for Thunderbird Autoconfiguration, to make it easier for people to configure the software.

I have read the documentation that I can find, Thunderbird makes a ton of requests to different URLs. I've tried to make it happy buy having as many of the different URL's it is contacting return the info.

https://autoconfig.example.com/mail/config-v1.1.xml?emailaddress=user%40example.com

I can see both from the website & the developer tools, it is getting the config file back. No error in the client, other than to say 'Thunderbird failed to find the settings for your email account'.

My question is, how can I debug the issue? It is clearly getting the config file back, but there must be an issue with the config file that is preventing it from using the data in the file.

I've been using Thunderbird for almost 2-3 years and lately, I was connected to a limited internet connection and noticed that Thunderbird is consuming more than 25GB per day on average. Although my emails are not changing that frequent but it keeps on consuming a lot of traffic.

I'm using configuration for Exchange mail server and synching the mail every 1 minute. The size of the offline messages is 3.5 GB

How can I stop this consumption? Or at least to understand why is this happening?

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

I am using a university email system hosted by google, servers are imap.gmail.com and smtp.gmail.com using university credentials, which involve 2-factor authentication using Duo. It has worked fine for several years, but last night we had a power failure that outlasted my UPS. When I started up Thunderbird this morning, I could not access the account, every attempt threw up a dialog from the University saying "Web Login Service - Stale Request". Clearing cookies and cache was not helpful. I deleted the account, shut down Thunderbird, restarted Thunderbird, and re-created the account. Now I can receive mail, but I still get the same error when I try to send mail. The account works through the gmail browser app, but I find that app to be worse than useless. I have no idea what to try next. Thanks for any help/suggestions.

Ever since last update, Thunderbird has not worked. Runs out of time, to download new messages, won't let me delete messages. Thinks for a long time. Uninstalled program and then reinstalled . No change. Not sure what is going on.

I am receiving this error message and have checked all the settings and have found nothing wrong with them.

Has anyone received this error and/or know how to fix it? Thanks.

Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [104.47.65.110] Diagnostic-Code: smtp; 5.3.0 - Other mail system problem 554-'5.4.14 Hop count exceeded - possible mail loop ATTR34 [DM3GCC02FT017.eop-gcc02.prod.protection.outlook.com]' (delivery attempts: 0)

I have a lot of issues with my mailbox. Constantly have to repair folders because the wrong subject shows on the wrong email. A big one I had was my inbox getting bogged down, but I learned it doesn't like to have more than a couple thousand emails in it. I kept getting a "exceeded maximum number of connections" error but read something about too many folders, got rid of a few folders and that error went away.

1) What other kinds of tips are there for keeping TB behaving well? 2) I see that my profile has a lot of old files for old folders that don't exist anymore. There's also nstmp files and foldercache.json files. Should I delete all these types of things to clean up? Or should I just start fresh with a new profile and re-download all my email messages? I can't imagine how long that will take because sometimes folders download quickly but other times take forever and I'm not sure the difference. I just downloaded a 4000 email folder in a 20th the time of another 2000 email folder.

Our company email host uses Office 365 exchange. As of yesterday (26 May 2022) all emails were blocked to Thunderbird on our networked office PCs using Windows 10. We cannot send or receive email on Thunderbird (fortunately it still comes through to our iPhones). Our host hold us that Microsoft has "recently started blocking POP3 connections on software such as Thunderbird".

 How do we fix this problem so that we can continue using Thunderbird, which has our email records for some 10 years?  We do not want to use a Microsoft mail client unless we really have to!  I imagine we aren't the only ones with this problem, but I couldn't easily find it by searching help.
 Many thanks!