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I have seen many questions a bit like mine but they all refer to downloading emails. Mine is different: "The folder 'Trash on my@email.com' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again." It now happens on two different email addresses (one is POP one is IMAP). Trash seems otherwise to work and can be deleted. But still this alarm. MAS OS 15.1.1 (24B91) - latest Thunderbird 128.5.2esr (64-bit)

Have a folder on my yahoo webmail account with >100K emails accumulated over time. The emails are of no lasting value

I just received a notification (via a banner on yahoo webmail when I log in) that my storage is full (never seen this before, but not surprised that Yahoo would be looking for "additional storage" revenue - not interested.)

I'm attempting to delete the emails in this (large) folder (which are of no lasting value), so far with no success.

The initial problem is that yahoo's functions to expunge (permanently remove) the emails (after moving them to their trash folder) does not work (either 0% progress overnight, or progressing 0-100% progress, in either case all of the emails remain in their trash folder and I continue to be notified (by the banner at sign-in) that email storage is full (and I do not wish to purchase any additional storage from yahoo.) As this is a non-premium yahoo account, no support exists.

It appears that yahoo webmail does not expose their trash folder via imap (it appears empty on imap view). Thunderbird "empty trash" on the hosted Trash folder shows no contents and completes immediately with "emptied trash".

I've now tried moving emails from yahoo's trash folder to another (new) folder on yahoo webmail, then using thunderbird imap to move those emails from yahoo to a local folder. My expectation was that "move" means gone from server, present on client. That appears not to be the case.

While this step does create a local copy, a copy appears to be left in yahoo's trash folder which still cannot be removed, so the core problem (of their impact on yahoo webmail storage) is unresolved.

I understand that "expunge" exists in IMAP but I don't see how this can be used with Thunderbird.

As I'm somewhat going in circles trying to solve this problem, I'm reaching out here for advice.

Thanks

I tried unticking enable and it did NOT work. Help! I want the stupid filter gone. I have struggled for two years with the junk filter which does not work right. I have done shift J. The filter does NOT learn. A week aog, I saw that I could uncheck enable and that was supposed to stop the filter. That also did NOT work.

Today, an email I forwarded to myself from another platform went in junk. I never wanted any junk filter. It has been nothing but trouble and now I can't even disable it.

Hello I have asked this before but i did not get an answer i could use i did get an answer but it did not work. So i am asking again. I can run Thunderbird for like a month and then all of a sudden all inbox mail goes to trash folder abut not with the name of the sender with my name as the sender I have reinstalled several times i have changed my security gone from 64 it to 32 bit removed some add ons or extensions. Now it is run from Comcast email and that is correct as far as i know. Not sure i have it filtered correctly i am stumped please help me here . every time i d reinstall i need to put back manually all my contacts and that takes forever . Please i have even disabled Norton antivirus for 1 hour and it was doing this with windows explorer as well so please I know i asked this before but nothing worked. I hate to stop using Thunderbird but if this keeps happening i may need to. the only extensions i have in Thunderbird enabled are emojis, config button, restart, and ublblock. Not sure how to get to filters and change any thing. Thanks Please i need help thanks upset Thunderbird user

The last few days most of my emails have been tagged as ***SPAM*** and automatically moved to my Junk folder. I have to be sure to check that folder. I've tried "training the app by moving valid email to the inbox but the problem persists.

I use an AOL email account and Thunderbird on my Mac. In Thunderbird, the junk mail folder - which AOL call "Bulk Mail" for some reason - has moved to the Trash folder and I can't get it out. It's a Thunderbird problem - if I go onto my account at AOL.com, everything is normal. How do I get it out? I've tried cutting and pasting it, creating a new folder...nothing seems to work. I don't want to empty the trash in case I no longer have a junk folder at all

Hello,

I run Thunderbird 146.01 under Windows 11 Version 10.0.22631 Build 22631... TB pulls messages from a POP Server.

Though I have tried many fixes TB keeps reverting to requiring that I manually run both Spam Sorting, and Filter Sorting, usually after running these functions automatically for about a week.

Might someone suggest a fix that will have some lasting benefit?

Many thanks,

Lothar

Hi. Somehow, in Thunderbird Mail, I moved the "Bulk" folder into the "Trash" folder and now I can't reverse that. Some of my mail is going to the "Bulk" folder and I'm forgetting to check that, thus missing emails. Is there a way to move that "Bulk" folder back where it belongs? thanks in advance

I saw people posting for over a year about the "Geeksquad" FAKE emails. This still hasn't been corrected, and I am getting them also from the criminal enterprise. They all pretend to be from Best Buy/Geeksquad. They all have Click buttons with the SCAMMER website rxvtom<>.com within the email. Block this Junk, please, before any more people get hurt

I will provide FULL HEADERS Directly to Support Staff. I don't want to Post them here since someone might inadvertently Click on them and get Malware from rxvtom<.>com Malware site.

Protect your Users. Links disabled per request of thread owner

Amazing that there is no topic for Spam, the most hated aspect of email. Mozilla, wake up!

Anyway, I want to be able to highlight a bunch of spam emails, then block all the domains they are being sent from, first checking to make sure nothing was sent from a legit domain like Gmail or Hotmail. Because the smart spammers acquire domains from which they can generate an untold number of email addresses from and they can just a different one every day so blocking an individual email address from someone like this is useless. They'll never use the same one twice because it's so easy to use another one. They own the domain so they control everything at that domain.

I've never heard of any email program offering this which is perplexing as this is the only logical solution to the vast majority of spam we are plagued with in 2025.

We really need an Add-On for Thunderbird as it appears Thunderbird doesn't seem to care.

good day....ii hope someone can help. the other day i was accessing my yahoo account spam folder and by accident, i deleted the spam folder instead of emptying it. the spam folder is now sitting in the trash and i'm unable to remove it from there. when i log into my actual yahoo account, the spam folder is where it's supposed to be and not in the trash. i tried removing the yahoo account from thunderbird and reinstalling it in hopes that it would rectify the problem, but it hasn't. does anyone have a solution?? i would greatly appreciate any help you can offer. thank you for your time...mike s

Hi, I have three email adresses installed on Thunderbird. All have Junk folders I see on screen. But while two addresses sow junk files one is all the time empty. But this address on mail app on iPadAir displays yhe lot od junk messages in the same time. All settings for the three adresses on Thunderbird are he same. My PC is Win 11 64-bit Desktop HP Pavilion. Icon for bad junk folder is a little bit different than the icons 1 Version of Thunderbird is 28.6.0esr (64-bit)

Bonjour, Les messages que je télécharge dans thunderbird sont illisibles :

X-ProXaD-SC: state=HAM score= . X-ProXaD-Cause: 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 X-ProXaD-Context: Received: from zimbra-e1-04.priv.proxad.net (unknown [172.20.243.152]) by smtp6-g21.free.fr (Postfix) with ESMTP id 81A9178035B

alors que les anciens messages sont encore lisibles. Merci

So, all of a sudden my incoming emails went directly to the "Junk" folder for no apparent reason. When I go to the Junk folder to view my emails, they don't show up in the right viewing column.

And when I try to send them back to my "Inbox," they don't go there and I have no idea where they go. I can't see them anywhere. I've checked my outgoing settings and they're where they are supposed to be....as well as my incoming server settings. They are where they should be. I use Comcast, and have checked with them, and those settings are correct

So at this point I have no idea what to do, and obviously need help from someone much more knowledgeable then me! Hopefully I've explained the issue clearly, and have made it easier for those of you out there. I'm not a computer dummy....but this has be quite baffled, as it came on suddenly, and had weird characteristics.

Thanks to all,

Michael...

I tried gleaning this single outgoing email of "excessive spam/sales language" (I am only thanking someone for their purchase, not asking for another); "excessive links" (they and their graphics were fine before). no "excessive emailings/quantities" (I am only sending one single email and don't do more than a few with this content ever and haven't send even one email like it in weeks); co0ntacted my internet provider (RCN Astound can't help me and told me to contact Thunderbird), I already checked POP & SMTP stuff...

"Sending of the message failed. An error occurred while sending mail. The mail server responded: [VO-101] Message blocked due to spam content in the message.. Please check the message and try again."

What do I do?

I even checked that I had the latest version of Mozilla Thunderbird: yep! :/

I have turned off every junk filtering option in Thunderbird, globally and for each account, yet the application started and continues to mark nearly every incoming email I receive as possible junk -- even emails from MOZILLA... It is not my ISP, nor my email provider, as they are not filtering junk, either. The banner on the preview window says "Thunderbird thinks this message is Junk mail", so that tells me it is THUNDERBIRD that is doing this. How can I get the app to stop??? There are no helpful conversations in the forum, since I've tried all of the solutions that were presented. I'm about to just delete the app and use something else which is a shame since I've been using Thunderbird for probably 20 years, but I cannot continue if this problem does not stop.

I am receiving the following error message on a Win 11 desktop running Thunderbird 128.6.0.esr (64 bit): "The folder '[Gmail]/Trash on my.fr33.email@gmail.com' could not be compacted because writing to the folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again." I do not have a folder [Gmail]/Trash on the gmail server. I also do not get this error on other Thunderbird clients running Win 10 or Win 11. I also do NOT get the error when I manually compact the my.fr33.email account, either at the account level or at the Gmail folder level. Once I acknowledge the error the system seems to run normally until is wants to automatically compact folders. Any suggestions will be appreciated. -- John Randle Knoxville, TN

HI.... HELP...Got Hacked... All of a sudden, starting a week ago, I get 60 and more, unwanted E Mails from people I don't know, & have to go thru & delete them daily.. I have a list of my true correspondents & can re enter them, if there is some way of one time, emptying the Input box or what ever, to stop this from happening, every day...........Thanks. Ken

Thunderbird 143.0.1 eclipse.

Quite recently I noticed that, in the list of folders, I see 2 "Junk" folders.

On looking at the properties for 1 Junk folder the location is shown as "imap://*********%40gmail.com@imap.gmail.com/Junk",

but properties for the other shown as Junk locates as "imap://*********%40gmail.com@imap.gmail.com/Spam".

I've tried renaming that folder in Thunderbird to Spam but the change doesn't take effect.

What went wrong, and more importantly how can I rename it to see it as "Spam"?

tnx.

Hello, I have marked a number of emails as junk in the Suspected Spam folder. Why are they not immediately moved to my junk folder? Or do I have to move the marked emails there manually? Or is it better to delete them manually immediately after marking them?

Best Regards