I-Thunderbird Community Forum

I use to be able to mark email as junk by right click then K then J. The junk option is not there any more but spam is. The problem is both add star and as spam are both S, so K - S does not work. Need to change one of them to a different letter.

Since yesterday (27 Apr 2026) any and all mail that comes into Thunderbird gets marked as SPAM. I searched online and found people saying that I could reset the junk training filter, so I did this, but incoming mail was still marked as spam. The next suggestion was to delete the training.dat file. Did that, restarted Thunderbird and incoming messages are still marked as spam. The last suggestion was to turn off adaptive junk mail controls. Didn't want to do that because I assumed that it would let spam through. Nope. Turned it off, restarted Thunderbird and two emails from my work came in and got flagged.

I'm running version 140.10.0esr (64-bit) on Windows 11. I am using IMAP to connect to the mail server but it's not running any spam detection software (like Spamassassin). I know this because it's my server and even if it was, no updates have been preformed since the first of this month and this just started happening yesterday. Combine this with the bug that Thunderbird notifies me of incoming mail, even if it's spam (didn't post about this because there are plenty going back a couple of years), is starting to make me look for an alternative.

1) How do I get the emails Thunderbird marks as spam to be moved to the Spam folder without me doing anything. I have thousands of emails now most marked as spam but I have to go in and move them one by freaking one!

2) Also you freaking filter system doesn't work worth a crap! I have created filters for instance: for any emails that have @cypress.com in the From part of the message to be moved to a folder under my inbox named Cypress. I have run it many times and actually none of the filters I've created work? They are very simple to understand and I am doing them correctly as far as I can tell but they don't work. I have created at least a dozen filters and the only emails moved are ones I moved manually myself.

And this training crap you have I don't know what you think it should take a computer to learn to move something to a folder. It's not like a child that has to be taught how to spell. You tell it if it has this in whichever field you've selected then it should move it. Not have to be taught? Not a bright idea in my opinion. It's why AI isn't very smart at least what they release to general users. Anyway I digress.

If you can help me with the above issues in the above paragraphs 1 & 3 I would greatly appreciate it.

All e-mails from Pay pal go into trash. Have marked as Not Junk but this has not helped. Needed e-mail from Pay pal today to pick up a click & collect order but didn't receive any e-mail. Tried to log in to Pay pal on Android phone not desktop PC as I usually do. Kept sending codes to my e-mail address to log in but I received nothing. Wasn't until I had come home and accessed Thunderbird on my PC that I found them all in the Trash. Luckily store gave me my order and I didn't have to go back.

Despite my marking messages several times as NOT spam, Thunderbird keeps on and on RE-marking them as spam. And the mails are coming from one of my own addresses, and they ARE in my address book!!!!!

There seems no way that I can stop the beast from misbehaving.

Bonjour, Pourquoi actuellement tous les messages que j'envoie avec ma messagerie Thunderbird depuis mon compte FREE sont-ils identifiés comme spams par mes destinataires GMAIL ?

Good morning.

A few days ago the "Junk" folders in my Thunderbird accounts, without any action on my part, were suddenly renamed as "Spam" folders.

Anyone know why this happened?

Thanks

I keep getting messages from 2 sites that give me a virus. Hoardpot AND contact@musterateam.com When I tried to unsubscribe it didn't work.

Tell me what to do please. Thanks

‘spam filters do not work. After 18 years of putting up with it I want block senders and sender ip's WHAT IS UP? WHY DON"T YOU FIX THIS - Do I have to go to M$oft?????’ for ‘Thunderbird’

thunderbrd version 153.0.1 64bit windows11 Spamfilter problem

my contacts are all in the personal address book convinced they get filtered as NOT SPAM, recently some addresses out of my adressbook get filtered anyway - weird an expert told me to setup a whitelist as a subfolder: I did but same prob... as far I know the address book works like a whitelist anyway, no success also not long ago thunderbird had an update - and it feels since the dodgy filtering started. Using thunbderbird for ages - never had that prob ever - till recent

Is there any known solution please ? Thanks & regards Jochen

This happens regardless of whether message is moved to trash or junk folder. My concern are this also marks spam, phishing and/or malicious emails read which allows read receipt to be sent when enabled. I don't want to be forced to use remove immediately or disable read receipt option to ensure these messages are deleted unread.

I was cleaning up my wife's email when I noticed there are a lot of messages unread and in the trash folder that ought not to be. I am wondering how to fix that for her. Example: some amazon.com emails about orders, or emails from favorite merchants or websites.

I am getting hundreds of emails a day from the following: Mailer-Daemon@gator3303.hostgator.com with this subject: Mail delivery failed: returning message to sender How do I stop this? Thanks

Sending of the message failed. An error occurred while sending mail. The mail server responded: Your message has been rejected because you have been detected sending high likelyhood spam.. Please check the message and try again.

This is the message I get everytime I try to send and email.

When Thunderbird "thinks" a message is Spam the spam option on the header is already grayed out, is it ok to delete it then and if it is learning what is spam, how come I continue to get spam email from the same senders?

Hi, I'm using Version 140.12.1e (64b). Is there any way to block and delete undesirable E-Mails om my Incoming box ? Even while being marked 'Undesirable', they stil coming again. Is there a way to erase them automatically ? Many thanks, Have a good day, Dan

In previous versions of Firefox it was easy to create a filter. Not anymore. I want to allow trusted addresses to come into my Inbox without going into Spam. Even when I follow (Google's AI) instructions exactly, all my medical information goes to Spam AND the trusted filter I created seems to have blocked dozens of browser choices in DIY sites, among others.