I-Thunderbird Community Forum

I am trying to create filters for all the spam I have been receiving. It mentioned a tools menu for adding additional filters, but I am not seeing a tools menu anywhere,

Is there an easier way to block unwante senders than the extra effort to create a filter ? It seems there should be an easy way to "Choose or Apply a Block to a specific email sender by simply clicking on a "BLOCK" link to prevent that sender from sending unwanted emails(not just that email)

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’m running Thunderbird 147.0.2 (64‑bit) on Windows. In this version, there is no Mail Toolbar and no Junk/Spam button available in the Unified Toolbar layout. My issue is this: When I manually mark messages as Junk, they stay in the folder where I marked them. They do not automatically move to the Junk folder, and there is no way to bulk‑delete or bulk‑move the messages I personally marked as Junk. I’m trying to find out: - Is there a built‑in way in Thunderbird 147 to bulk‑delete messages that I manually marked as Junk? - If not, is this a known limitation of the new interface? - Is there a recommended workflow for users who manually mark spam but do not have the classic Mail Toolbar? I’m not looking to switch to the Classic interface — I just want to know how to manage manually‑marked junk in bulk in the current Unified Toolbar layout. Thanks for any guidance.

In the past week emails from one of my friends started going into junk mail. The person in in my contacts. I selected 'enable adaptive emailjunk mail..." and selected the correct address book. The mail still went to the junk folder. I changed the 'move new junk mail to: my inbox, still went into the junk folder. I had him send me 10 emails that I marked as 'not junk' still no success. My emails come from yahoo.com - went there and there was nothing in the spam or junk folder in my yahoo email account. This is happening to only one email address. There's nothing strange in the title of the email or the content. I've run out of ideas.

Some mail can not be delivered to sender. I am having mail is turned back and explanation about : I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message.

                  The mail system

<slavica.jevtic@mtt-infiz.com>: host mtt-infiz.com[92.205.179.59] said: 550

   "The mail server detected your message as spam and has prevented delivery."
   (in reply to end of DATA command)

But sometimes it goes very easy the same mail? How does it come? Same mail will pass and same mail will not pass sometimes?? thank you Nikola Guslov

Hello,

I have defined about 45 simple filters to get rid of spam. They are all based on keywords found in subject or sender.

All of them are enabled and set this way :

Apply filter when : _ Manually Run X Getting New Mail ( Filter before Junk Classification ) _ Archiving _ After sending _ Periodically, every 10 minutes.

Perform these actions : 1. Set Junk Status to : Junk 2. Move Message to : "super-junk" folder 3. Mark As Read

See example in attached image.

PROBLEM : They do not run automatically when new emails are received. But if I run each of them manually, they work.

QUESTION : What is wrong ?

Thanks !

Emails I've approved of and added to the address book are still showing up in the spam folder; to include marking them not spam or running the Spam Controls. Is there another way for this annoying behavior to stop?

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.

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.

Dozens of emails per day from a domain with firebaseapp.com in the domain. I cannot seem to get them to go to junk or preferably block them.

I get 4 to 6 messages from spammers trying to get me involved with Xrated sited....all of these emails are from hotmail.com.......This has been going on for several weeks or maybe months....do you or I have the ability to block all emails from hotmail.com????? I am tired of blocking these so many times every day.

I am being barraged by email spam by the hundreds all day and all night I have placed almost 100 filters that put the spam in the trash, but since many of my contacts wind up in the trash folder as well, i need to look through it all to verify spam, not something important.

Is there any way to keep these unwanted emails from loading?

Just recently, some of the emails I receive are full of messages in red next to almost every line of the email saying that things like "Likely fraud detected" or "Do not trust this website." There is no indication as to what program is creating all these warnings. I have tried to turn off anything I can find in Thunderbird's security settings to no avail. The main source of emails with these warnings is "Beermenus.com" which I have been receiving for quite awhile before this started. Any ideas on what to do

I've been using Thunderbird for a few months now and I have been marking email as "spam" or as "not spam" but I am finding that a lot of addresses that I mark as "not spam" still end up in my spam folder, even after marking them several times.

What I have been doing is restoring the email that I want to read back to the inbox and marking it again as "not spam". Some email that I mark as spam does get moved to the spam folder, which is fine.

Is this was happens for some considerable time or am I getting something wrong?

How the [edited] do I turn automatic spam filtering off? I've literally unchecked EVERYTHING related to junk or spam, but it's still marking every [edited] email that I get as spam. Even addresses in my address book!