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hi 大家好， 我用的是thunderbird115，imap协议收入邮件。我发现我的thunderbird 位置文件夹非常的大有565GB，但是我的邮件占用服务器的空间却只有40GB。我查看了我的配置文件夹里的内容，发现有很多名字为nstmp-数字的文件，有几十个，这些文件大量的占用了我的硬盘空间。想问问这些nstmp文件有什么作用，能不能删除他们，删除他们会对邮件有什么影响吗？谢谢大家。

我的邮件客户端为128.7.1，用的时IMAP协议。在客户端界面显示收件箱（包括收件箱下级文件夹）总共大小为78GB,但是在%appdata%中的thunderbird文件夹却有恐怖的795GB！！！我尝试压缩收件箱但显示只压缩了7.5GB。。有人知道这是什么问题吗？我应该怎样减小%appdata%中的thunderbird文件夹的大小？谢谢。

Whole thing running very slowly. Keeps trying to compact folders, Inbox I think,. Have about 88 000 messages in Inbox. Could just delete older ones, say older than a year. Any simple way of doing that?

Hi I have been used to Thunderbird responding to my beginning to type recipient names with a list of matches. Suddenly it has stopped doing so. I have checked that all my addresses are still present in the Address Book (relief!), but I note that the Contacts sidebar is completely empty (even the Address Book options are missing). I can't find a setting to correct this, and would be very grateful to know how to revert to the previous good performance. Thanks

Hello, I am unable to see my email messages in the panel. I do see the number of emails that I have, but unable to open anything. Has something major happened with Thunderbird? The email function was working fine and the next morning, all of my messages in the panel disappeared.

I'd appreciate any immediate feedback. Thank you.

I couldn't get emails to download from server. This began 2-3 days ago, for no apparent reason. I got Unable to write the email to the mailbox. Make sure the file system allows you write privileges and you have enough disk space to copy the mailbox." I've never made any changes to the default program, so 'something' (maybe new update?) caused this problem (to my TB & and hubby's TB!) I tried to delete a LOT of emails and compact the file, but TB froze and I can't continue to compact, and CANNOT EXIT the program to try to restart. There's no way to try to fix this as long as I can't get TB to respond.

Interestingly, both my hubby and I had the same problem and it began during the same time period. We both have Windows 10/11. To try to fix his TB email, I deleted 5000+ emails, set the system to retain only the last 150-200 emails, and then was able to COMPACT the file. This seemed to magically return the email to its previous working order, and all current emails were downloaded. (Fingers crossed that this will still work properly when he checks email later today; others have said the problem returned.)

However - I'm not able to use the same 'fixes' to get MY TB to load email. I tried to delete a lot of emails and then 'compact', but it FROZE - showing this message: "Compact folders (Not responding) Thunderbird needs to do regular file maintenance to improve the performance of your mail folders. This will recover 685 MB of disk space without changing your messages. To let Thunderbird do this automatically in the future without asking, check the box below before choosing ‘Compact now’. " I can't get TB to recover the 685MB of disk space because it won't respond to anything.

I'm stuck. I hope someone can help. I checked some possible fixes via the community, and threw up my hands in despair when many of them needed 3-5 pages of instructions to complete the task! Help please? Thanks in advance.

Following the latest update (may 20, 2025) When any message is deleted, the entire inbox becomes empty until the program is closed and reopened. (then they all reappear). I am running windows 11. Thanks for any help

Suddenly I am getting a pop-up window on Thunderbird asking me to sign in to continue with Mozilla Thunderbird email. It populates my email address and after clicking ‘next’ it says.

‘400. That’s an error. The server cannot process the request because it is malformed. It should not be retried. That’s all we know’.

i cannot send or receive through Thunderbird, at present. Who is the genius out there that can tell me what to do?

Thunderbird opens okay, but does not check for new emails. If you press it to manually trigger a refresh - it does not react. It just constantly says DONE in the bottom left hand corner

I am having recurring problems sending e-mails, not knowing when it is going to work or not. The following message is one that I usually get:

"Sending of the message failed. An error occurred while sending mail. The mail server responded: <info@axxxxx.co.uk> recipient rejected - relay denied.

Please check the message recipient "info@xxxxx.co.uk" and try again."

I also get the following message when trying to send:

"Login to server mail.madasafish.com with username btom@madasafish.com failed."

These are my current settings:

Details of selected server: Description: btom Server Name: mail.madasafish.com Port: 25 User Name: btom@madasafish.com Authentication method: Password, transmitted insecurely Connection Security: None

I haven't changed any settings from the last time I was able to send e-mails, so I would appreciate any help.

Within my means, i am a keen su[[porter of Thunderbird, but I must confess I am really getting fed up with it. Recently I have been having A spate of problems. I recently had a problem where all my inbox mail ended up in my trash folder and you provided help to solve this issue, thank you. No sooner had that been fixed when I then booted Thunderbird up and, although all folder in the left hand page were there, all present and correct, there were were no emails listed on the right hand side except the Thunderbird home page. Do I just give up on Thunderbird for fear of what next problem looms up unexpectedly?

I open TB and everything is fine = about 6 accounts. At some point, all accounts stop showing emails in the right pane. The navigation pane still shows the email count in each account and folder. A message in the right pane says there is no emails to show. The only way to get it back is to close TB and restart it. What is happening and how to fix it????????? W11, TB 1.38.0.0 x64

Thunderbird has started opening a "Reply to sender with a copy to myself" e-mail when I double click to open an e-mail. If I actually send a reply, the original e-mail disappears from my Inbox. How do I stop this? Thanks.

Most attachments come through as application/octet-stream which I should be perfectly able to view via "gnome-text-editor" or "gedit" etc. I want to be given the option to use one of these.

I don't see any mechanism in the menus to allow this, though. The "application/octet-stream" is conspicuously absent from the content-type list, which is absurd since that's what 99% of all attachments are recognized as.

Note that I want this as an *OPTION* to going through the steps of downloading and then viewing the file.

I have 2 imap accounts set up in Thunderbird. When I try to Copy/Move a message from 1 account to another account, thunderbird will return an error that the APPEND is missing ')'.

I have turned on MOZ_LOG and it shows that the append has is wrong as the line ends as UTF8 (~{348+}

According to AI the ~ was inserted and the ) was dropped. It should have send ...UTF8 ({348})

The dovecot IMAP server is rejecting the the append.

How can I resolve this?

Screenprint of the log attached.

Kind regards,

Leo

After compacting, nearly all my my e-mails that were stored in subfolders have disappeared. You indicated that most of these should be recoverable, but I'm unable to locate any process for doing so.

Some of these subfolders contained links to paid subscriptions, and of course - restoring those is pretty critical, both personally and professionally.

Please explain how to go about recovering all these missing e-mails. I cannot believe a regular maintenance procedure would result in such a significant data loss.

Many thanks and best regards!

John Van Epps johnvanepps0312@gmail.com