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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

I have a filter that moves emails based on the Sender... to a Local Folder (*) The system is set to [Filter After Junk Classification]

Every new email moved (by the Filter) to this Local Folder is marked as Junk. I manually set each email as not-Junk but the issue persists. (*) I have added a Filter action (as well as the Move): Set Junk Status to Not Junk (but this is not successful)

Any suggestions to fix, are welcomed.

Hello: I send out newsletters to about 100 senior men golfers. I've been struggling with my messages going to spam or junk folders. My messages don't contain spam, but some mail servers are rejecting them. I've been working the problem (proper server authentication, DMARC, SPF, DKIM, etc.) but one of the suggestions I've read is to make sure there's an "list-unsubscribe" link in the email header. I've placed one in the body of the email at the bottom of the page (still fails), but how do I make a header in Thunderbird in which to place a link? Thanks for any help.

Thunderbird does correctly mark emails I choose as spam spam. Problem is, TB fails to move these marked-as-spam emails to the selected spam folder. I've searched for cures here but nothing helps. Now what Mozilla??? See attached pics...

A couple of suggestions.

1) After opening an email marked as spam (by Thunderbird's spam filter), there is no option to confirm that this is, indeed spam. The email can be marked as "Not spam," but not confirmed to be spam. Unless I'm missing something, I have to go back to the inbox, mark it as spam manually, and then it is automatically sent to the spam box.

2) Assuming I understand the spam filtering correctly, once Thunderbird marks emails as spam, they remain in the inbox for at least 1 day (or longer if desired). I would like to have those emails sent IMMEDIATELY to the spam box, where I can still examine them to make sure they're spam before deleting them.

That way, the inbox will have only emails that either are not spam at all and those that haven't been marked as such.

As the system now works -- unless I'm misusing it somehow -- once the filter marks emails as spam, I still have to wade through them to sort out the good ones. In my view, that pretty much defeats the purpose of having the filter in the first place. I still have to "mark" them as spam again to get them sent to the spam box.

Perhaps I should note that this inbox gets dozens of spam emails every day and that I check it multiple times per day.

Yesterday Thunderbird worked just fine. This morning I tried to respond to several emails and got this error message: Sending of the message failed '"An error occurred while sending mail. The mail server responded: [VO=1] Message blocked due to spam content in the message. Please check the message and try again."

There was no spam in the person's email... just text.

Next I tried to send a freshly created email with just a YouTube video... then the last half of the error message said: An error occurred while sending: RBL restriction: Blacklisted by Internal Reputation Service - 195.181.168.179

What is going on??? The SMTP settings are correct: Port 587 STARTTLS Help!!

Hi I get out to 3 dozen spam emails a day in my inbox. I want to know if there is a way to send these directly to my junk email folder bu using the providers address. For instance, if I get quite a few from say @yahoo.com, is there a way to set up the filters so everything from @yahoo.com goes directly into the junk folder? Thanks, Marc

I am trying to whitelist a domain name. TB won't let me do that. This company has a plethora of emails. I don't want to whitelist every single one of them. That would take me days. It is impractical. I want to whitelist the domain name which is concentrix.com. I want to ensure that all emails coming from that domain name land on the inbox folder. How can I do that on TB?

I love Thunderbird, I think it is an excellent product all round, but one thing that really, really niggles me is that it continually marks certain senders as junk.

I receive Emails from these senders all the time, and often miss Emails because Thunderbird has marked them as junk, and moved them to the Junk folder, which means I don't see them on my mobile devices (IMAP).

I've marked this sender as "Not Junk" at least a thousand times. Each time it accepts my tag, and moves the Email back to the Inbox. However, that doesn't last, as the next Email, or the one after, or the one after that, ends up in Junk again.

I've seen a few posts that protest - this is not Thunderbird's fault, it's your Email provider, but I've already crossed that one off the list as I have white listed the entire domain at the Email provider. So nothing is getting flagged from the Email provider, to hint that it might be junk.

I'm always on the latest version of Thunderbird, and I have adaptive junk filter logging enabled, but it is completely empty of any logs. I also have "Do not automatically mark mail as junk if the sender is in "collected addresses" & "personal address book". I have a number of entries from this domain in the personal address book, as well as *.@domain-name.com, though I'm not sure if that format is correct to capture the entire domain.

Any help on this matter, gratefully received.

M

Hi, until recently I used to get a reply-mail from my affiliate partner in my Thunderbird mail, but it's not working anymore.

I am trying to find a spam folder where I can check and possibly exclude that?

Please, help. Thanks.

Fix the problem; how can I see all that are in the trash folder? I need to be able to delete the oldest ones and access those sent there recently in error. The display says there are over 900, but I can only see nine and the dates are not the most recent nor the least recent nor consecutive.

I don’t want any spam filters from Thunderbird. “Uncheck Enable adaptive junk mail controls for this account” never worked. https://blog.thunderbird.net/2024/09/thunderbird-and-spam/ The message "Thunderbird thinks this message is Junk mail" still appears. I’ve deleted Bogofilter.sfd, DSPAM.sfd, POPFile.sfd, SpamAssassin.sfd, SpamPal.sfd from Thunderbird.app/Contents/Resources/isp. What else do I need to delete from Thunderbird to get rid of the message "Thunderbird thinks this message is Junk mail"? I’m using Thunderbird 128.9 ESR on macOS 15.4.

Right now when blocking a sender the deleted message go to "Trash".

How can I do a "hard/permanent delete"(Shift+Delete) when blocking a sender? Can this be done so that it bypasses the Trash and is permanently deleted?

Hello, All of a sudden when turning Thunderbird on, I have found that all messages in my Inbox have gone ( except a few for last day or two). Looking around Thunderbird I have found all Inbox emails have bee dumped into my Trash folder! Please help - how can I get emails back where they belong and get Thunderbird back into working order? Very grateful for any help' Thank you, kindest regards Brian Benger PS where will I get your reply if my email not working??

Hello,

I need assistance with a very specific Thunderbird issue.

I use Thunderbird with multiple email accounts. Every one of them has a functioning Junk/Spam folder except for one: my Google Workspace account max@dantanas.com

. This is the only account where Thunderbird refuses to create or recognize a Junk/Spam folder, and the option to assign one is disabled.

I am not looking for general explanations about IMAP, Gmail, filters, server policies, or Thunderbird’s junk logic. I need a concrete, step-by-step procedure that results in:

A visible, usable Junk/Spam folder for max@dantanas.com

inside Thunderbird.

Thunderbird recognizing that folder as the Junk folder.

The Junk settings becoming available so the account can move spam to that folder like all my other accounts do.

To be clear:

All my other accounts in Thunderbird already have functional Junk/Spam folders.

The problem is isolated to this one account.

I need an exact sequence of steps that I can follow to fix it, not abstract descriptions or background information.

Please provide a direct, step-by-step set of actions that will enable Thunderbird to create or use a Junk/Spam folder for this account.

Thank you, Max Makowski max@cape-co.co max@luck.fish

My junk email has increased dramatically lately. I'm sure it's just life on the internet but I'm trying to figure out if clicking "unsubscribe" actually does anything. I've been putting all the emails that I click "unsubscribe" into a separate folder. I'd like to sort the folder by the email address of the sender. However, when you click on the "from" selection in the message window it gives you the entire entry that the sender put in the send section. In other words I see "The Scary Law, Thomas T. from NFE <daily@today.newfinanceera.com>". Is there a way to get a column that just shows the "<daily@today.newfinanceera.com>" so I can sort on that item?

I am running Thunderbird 140.6.0esr on a Windows 10 desktop PC. Yesterday I was accessing my inbox and had a problem. I marked a message as Junk in the message bar. My virus software, TotalAV, flashed up a Red message box say HTML issue - Junk. Following that Thunderbird gave a message saying Junk folder full and greyed out the button on the Message bar. Then the Junk folder disappeared from my folder list and now pressing Junk for a message causes no action. Before the Junk folder disappeared it had 2 unread messages.

My Junk settings say "Junk" folder on: my account name.

I do not know how to proceed. Please help.