Thunderbird Community Forum

Hello,

Recently I have started to have emails fail to deliver to a certain domain and the message that comes back is

550 DKIM Sender Invalid - envelope rejected.

I am using Thunderbird v128.8.1 esr (64-bit). Extensions installed are: 1. Attachment Saver (Deimios, v.0.2.2) 2. FileLink provider for Send (Teal Dulcet v2.1.1) 3. Remove Duplicate Messages (Eyal Rozenberg v0.6.1)

I have been in communication with this client for several years and not had this problem before. When I send email to the same recipients using WebMail there is no problem, it is only when I send from Thunderbird.

I am not using any encryption type of setup.

Has anyone come across this before? Does anyone know of a solution?

Thanks, Franc.

I have Thunderbird 140 set up in cards view (threaded). Under Row count I can choose 2 rows or 3 rows. But all that choosing 3 rows does is place an empty row below the subject line. I was expecting it to show me the first line of the email content. Can that be configured? Or what else is the third row supposed to display? (other than the star for favorites, which always appears in the lower right corner but hardly needs an entire row by itself)

• After the update launching thunderbird daily, from anywhere, main `.exe` or shortcut links
• It opens a cmd prompt, I am using Windows 10 build=19041, I also use `windows terminal canary`
• I had no issues before the recent update, is there a way to roll back the version? to the previous commit?

an end to sign in windows that just keep asking for information I do not have would be good and that just keep repeating themselves also I seem to have lost all pop3 functionality without any means of recovering or altering anything. this all started when I found I had 13000 plus emails it was impossible to deleat as they just kept reappering on the next visit to email.

This is the screen I get when I follow the instructions from the first denial screen:

400. That’s an error.

The server cannot process the request because it is malformed. It should not be retried. That’s all we know.

the last time I received an email update on my desktop PC (Win 7 Pro) was 4:08PM (yes, PM) for one account and 4:44AM (yes, AM) for the other account. On my phone, the 4:08PM is the same but the other email account recd an update at 3:17PM.

I have used Thunderbird for many years and have a direct debit set to make a payment each month. Everything on Thunderbird is ok but I cannot write a new email message. The is a little envelope top left that seems to have a padlock on. HELP!

Hello! My husband making a new company online and we just set up the needed emails with domain connected. Thunderbird was installed on two different laptop and all the 5 email got configured on both laptop. We run several test on all to see if it is going all fine sending and receiving on both laptop In one of the laptop when sending emails from thunderbird to gmail with 4 email out of 5 has a problem and at gmail site ends in spam or in one instant does not even deliver. We run a test program but that showed all fine, however emails keep showing up in spam at gmail site. Where is the problem? At the host? or at Thunderbird or at Gmail? What should be done to fix it? Thank you very much any suggestions and help. Kind regards, Krisztina

Incoming e-mails do not always appear in the inbox when they arrive. They always do appear but there are often delays, sometimes of a few minutes, sometimes of several hours, and sometimes of many hours. At the end of the delay they always do appear, with the time at which they were sent indicated, even though that time is earlier than the time at which they appear in my inbox. I have sometimes sent e-mails to myself, as tests -- and these are also often delayed for five or ten minutes. I am not aware of any actions that I take that precipitates either the start or the end of the delay.

Hi, I have a problem with Thunderbird tabs. I have some emails open, but after some time these emails disappear and I am left with tabs without title or content, why?

[img]https://i.ibb.co/1GzhFpNy/ThunderB.jpg/img

Tag names can be changed via message > tag > manage tags. But how can I change the tag ID ?

Let's say for example, I want to change the tag ID "unreplied" to "needsreply".

steps:

1. in user.js: change user_pref("mailnews.tags.unreplied.tag", "unreplied"); to user_pref("mailnews.tags.needsreply.tag", "needsreply");


2. search&replace all instances of regexp ^X-Mozilla-Keys:[^\r\n]+unreplied in all .eml files


3. Some tags are not stored as "X-Mozilla-Keys" inside the .eml file but elsewhere ( https://forums.mozillazine.org/viewtopic.php?t=3123346 ) – I suppose in the .msf files. They are in Mork format. Can I run a search&replace on them or will that break them?

Are these 3 steps enough or is more needed ?

Whenever a new message is received, which should go to the Local Folders\Inbox, instead a previous email from 2 days ago is always shown. I have recreated new emply Inbox and Inbox.msf files, but to no effect. Any suggestions on how to fix this?

Hi,

I'm experiencing issues with threaded view in Thunderbird (version 139.0.2 on Windows). Some threads do not display all messages -only a few emails are shown (e.g. 2 out of 8), and others are missing from the thread view even though they are present on the server. Rightclicking a message and selecting "Open message in new tab" sometimes works (but still doesn't show all messages), and sometimes it doesn't open a new tab at all. the missing messages do exist on the server, and I can find them using Ctrl + Shift + F , but they do not show up in the thread, nor do they appear via Global Search, even though the global index has finished building.

I have tried the following: -Right-click folder > Properties > Repair folder -Deleted and rebuilt global-messages-db.sqlite (global search database) -Reduced IMAP mailbox size from 140GB to 110GB -Waited for reindexing to complete

But the problem persists. It seems that Thunderbird either doesn’t associate all related messages with the same thread, or skips them entirely in display and search.

What can i do to fix it? Thanks in advance

I am using MacOS 10.13, Thunderbird 115.15.16ESR: my Hotmail worked until 15 May 2025 and then it would not download new emails. Screenshots are available if you want me to post them. I got an error message: "authentication failure while connecting to server outlook.office365.com". I updated Thunderbird to the latest for my OS: 115.18.0ESR. Still no new emails. I deleted my email account on Thunderbird and tried to reinstate it. Now I get an error message when trying to set up the account: "Unable to log in at server. Probably wrong configuration, username or password." I tested my password by logging into my Microsoft account with it on my browser. I can also login to my email using Firefox, but I want my Thunderbird email client to work again.

The configuration I am using is: I use my normal hotmail password in the password field. I also set up a new App Password with Microsoft and tried that without success. With the 115.18 update there is a new field: Your login. I just put my hotmail email address in here. incoming: outlook.office365.com, port 993, SSL/TLS, Oauth2 
outgoing: smtp.office365.com, port 587, STARTTLS, Oauth2 (I have also tried: smtp-mail.outlook.com)

I enabled 2-step authentication with Microsoft in my Microsoft account more than a year ago. Interestingly, I don't get a prompt on my iPhone Microsoft Authentication App when I select Done when trying to set up the hotmail account on Thunderbird.

Please help. I am desperate, and I have wasted a lot of time on this without success. Cheers

when i oppened tbird on windows 10, it showed a page to obly my for a donation. i had made a donation short ago, but eventhough, i just made another one time donation. when i open tbird again, i can not get out of the donation page. what should i do please???????

Not sure what has changed, but I have a lot of sub-folders in my email handler, I've set up filters and generally, the incoming mail get through the filters and ends up in the correct sub-folders, but today, I've been trying to add one sub and it fails. No message, no error. Just no sub-folder creation. Did an update do this to me? And others?

My desktop computer died, so I needed to copy all my data files from backup (which worked fine) and then install all the apps that I regularly run on my laptop. When I installed Thunderbird, I got the latest Release 139.02. It behaves very differently from what I think is called the "Classic View" that was running on my Desktop. I REALLY hate it, but can't figure out how to set the Thunderbird parameters to do that. My problems include:

-- Overview of Thunderbird "Views". I can't find any documentation that explains [a] the various viewing options that Thunderbird offers and [b] EXACTLY how to set them.

-- Release Notes. I haven't found any release notes to explain when/why a major change to view was done.

-- Periodically, even for same release, Thunderbird CHANGES my parameter settings. Most annoying is changing the General Message-List settings to "Show Only Display Names For People in My Address Book". I live in a retirement community where many husbands & wives share the same Email address. With this setting, Thunderbird shows the name associate with the first message I received from this Email address. So the heading doesn't show which person actually sent it (although I can make a good guess when Thunderbird is telling me it came from a dead person. [g]

Is there ANY way I can get Release 139.0.2 to display messages the way I've been seeing them for at least 10 years? I REALLY need help. (If I can't get Thunderbird to behave the way I want, seem like I might as well switch to reading/writing messages directly from Google Gmail web site. It's equally lacking in documentation, but I suppose that eventually I could figure it out.)

Thanks in advance for any help anybody can offer.GMail, I'd seriously consider switch to using Gmail directly without Thunderbird.)

I'm aware of the many caveats regarding use of 'Repair Folder'. It's widely known that the results are...inconsistent, to put it charitably. Nevertheless...

I keep vast quantities of messages in local folders. For some of those folders, I manually archive the contents annually, by creating a new folder with the name of the year ("2025"), then dragging messages from the existing folder to the new folder. This sometimes works. More often than not though, it fails in one way or another. Sometimes I drag them across, a handful of them show up in the new folder, but then the rest just sit there in the old folder, in selected state, but with no activity taking place. Sometimes merely selecting smaller 'chunks' of messages to drag across will work. In others, such as last night, even that didn't work.

I then invoked 'Repair Folder' in a vain attempt at recovery; sometimes that will clear the issue. However, when I did this, what happened is that the chunk of messages that were selected wound up having all their date fields (in the display) reset to near the epoch - January 20, 1970. When I view the message source, the dates are correct.

I'm unable to find a way to recover from this.

Any advice would be appreciated.

Windows 10 Pro 22H2 Thunderbird 128.11.1esr (64bit)