Thunderbird Community Forum

Hello, In our WordPress website, we have a page dedicated to our contact form. I have it connected to the email I have in Thunderbird so I can receive the forms; however, I keep getting the error of:

Mailer: Other SMTP SMTP Error: data not accepted. SMTP server error: DATA END command failed. Detail: Your message has been rejected because you have been detected sending high likelihood spam.

I saw online that I have to contact Thunderbird to resolve this issue since they are the SMTP provider. Please let me know what I should do.

(Note: I am not a coder so if I need to do any coding, please specify where I have to go and what to click)

Thank you

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?

I find TB spam filtering pretty weak. As one example, the same spam email can come in multiple times, be marked as spam each time, yet never be caught by TB. I'm running behind - currently using release 115.18.0 - I have had no reason to upgrade until now. My question: If I update is spam filtering improved?? thx,

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.

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 !

I have a valid correspondent email address, that no matter what I do it keeps sending his email to spam.This started about two months ago, up till then there was no problem. (A) where do you hide the list of email addresses that are being considered as spam? (B) if his email address is not there, what else can I do to fix this annoyance. Asking him to change his email address is not an option.

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.

Is there a spam file for thunderbird? I haven’t been able to find one. Xfinity has a spam box on my site. I had mail sent to me and could not find them on thunderbird or Mac mail but I Katerina found them in the xfinity spam folder..

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?

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

Migrated from comcast(xfinity)to yahoo which was a pain. That said, I moved the "Bulk "folder to the trash thinking Thunderbird's Junk folder would be what I needed. Apparently not, and now I cannot get the Bulk folder out of the trash and back where it belongs. Help??

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.

Is the feature supposed to behave this way? I find this rather tedious. Am I missing something here?

Current behavior:

My installation does not seem to automatically execute spam filtering for unified folders or saved searches. As soon as I manually select one of the included folders within - e.g. an individual mail acccount's inbox - the algorithm triggers and everything works as expected, but only for the one folder I clicked. This leaves me with having to click through all my mail accounts manually to make use of the adaptive junk mail controls function.

Expected behavior:

Selecting a unified folder triggers junk mail controls for all the included folders and moves messages to the respective junk folders automatically.

My Outlook account moves what it thinks are spam/marketing messages into a "Junk" folder. Sometimes there are important messages here that I must mark as "Not Junk" so that I can continue to receive new messages from this sender in my InBox. I cannot map this Junk folder into Thunderbird even after I go through the steps and checkbox this folder to be synchronized. It does not appear in the left-side "All Folders" section.

Many solutions suggest that I make changes in "Settings\Privacy & Security\Junk" section. This does not exist. There, however, is a "Spam" section. Is this the same functionality?

Further, under "Accounts\Spam Settings\" there is a "Destination and Retention" section. There is no "Junk" folder available under "Other".

Does anyone else have problems linking server-side Junk folders into Thunderbird?

Thank you in advance for taking the time if you replied, Tim

ps. I've googled this extensively, and all the presented "solutions" are not accurate as the Thunderbird "junk" options they refer no longer exist. Has there been recent UX changes, and this is now a lingering bug?

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.

What is the function of File / Empty Trash? Will it empty trash in all mail accounts or only the selected? If I select Blogs & News feeds will File / Empty Trash empty read posts there as well? Empty Trash is a bit unclear.