Forum zhromadźenstwa Thunderbird

On replpacing our SMTP server, we've found a strange problem.

Connecting to the SMTP server through TLS, the connection fails, if we add another account, it can't get the configuration data from autoconfig.domain.

Using wireshark it appears that it doesn't even attampt to resolve or connect to the autoconfig server (or connect throughj a proxy).

I can change the SMTP configuration to send insecurely (server can be accessed internally).

If I use a portable copy of thunderbird or start a new User Profile, both autoconfig and connecting to the server works, but all existing users profiles are broken in exactly the same way.

Does anyone know if there's a way to fix the profiles withough removing them and starting from scratch?

TIA for any help in resolving this.

A week or two ago I started having two problems with Thunderbird, but only with some emails related to my clients. Here is a description of each problem (in case the problems are related):

Doubled incoming emails

Emails received at my address david@nsrusa.org are being received and displayed twice. I have set both my email domain servers to delete messages from the server, which is the top advice always given for this problem. The advice doesn't work for me.

Outgoing message failure

Some messages I send using Reply (perhaps the doubled messages) are getting "stuck" in my email server, which keeps sending me updates on this failure. Here is the start of a typical failure message:

This message was created automatically by mail delivery software. A message that you sent has not yet been delivered to one or more of its recipients after more than 48 hours on the queue on server.springtimesoftware.com.

The message identifier is: 1uQFjK-00GA1j-05 The date of the message is: Fri, 13 Jun 2025 21:30:45 -0400 The subject of the message is: Re: Your recent postings

The addresses to which the message has not yet been delivered are:

 ***@bol.com.br
   host mx3.bol.com.br [200.147.41.201]
   Delay reason: SMTP error from remote mail server after RCPT TO:<***@bol.com.br>:
   450 4.7.25 Client host rejected: cannot find your hostname, [69.48.183.241]
 ***@gereconsult.com
   Delay reason: H=mx-vip-01.kinghost.net [191.6.216.38]:
   SMTP error from remote mail server after RCPT TO:<silviomartins@gereconsult.com>:
   450 4.7.25 Client host reje

My environment: Mailservers are mail.nsrusa.org and mail.springtimesoftware.com, both at IP address 69.48.183.241, Windows 11 Home 64, Thunderbird 128.8.1esr 32 (I have just updated to 128.11.1esr), hp laptop.

I am struggling trying to get a consistent format in Thunderbird. First of all let me say that I am happy with the default use of paragraph style and if I want to have occasional single spacing I can use shift-enter instead of enter. Most queries on formatting seem to be about getting single spacing all the time. That is not my issue. That means that if I compose an email from scratch everything is just the way I want it, using the default settings. The problem arises when I reply to an email. The settings then seem to be ignored. For instance the line spacing can be fixed to single spacing whether I select paragraph or body text and no matter what I do I can't get it to follow the default behaviour. Also, I noticed that the font goes to "sans-serifArial" instead of the usual "Variable Width". In fact if I try to select "Variable Width" in the Format menu it is just ignored. How do I get the default composition settings when I reply to an incoming email?

With some of the messages I receive and with film sites such as Netflix and HBO Max, the screen becomes too large to access the control column on the right, a necessary manuever as the scroll arrow has suddenly lost its ability to scroll when that column is no longer seen. What do I need to do to rectify this?

After updating Thunderbird to version 139.0.2 Thunderbird can't connect to my E-Mail provider! Getting error massage saying “user name or password are wrong!” It happening on my PC with windows10 Pro and the same on my laptop with windows 11 Pro. On my browser or my mobile, I can connect without any problem to my e-mail provider. After consulting my provider, his suggestion was to try installing my account again. I did but it didn’t work (same error) I tried installing older version which Thunderbird was functioning on. It didn’t work either. Even that I cleaned my PC from Thunderbird totally. To clear this point on Versions 139.0 and 139.0.1 Thunderbird function as always before. Up to now any Thunderbird update took automatically the existing setting without any problem. Any information how to solve my problem? Thanks.

(Unable to send a bug report via connect.mozilla.org, I have to leave feedback here.) After importing feeds from OPML into Thunderbird 140.0b2 (64-bit), I will export them.

I had to attach fragments of files as screenshots because this site does not allow formatting text as code and removes part of the text.

It seems to me that the export is broken because the generated file lacks both a link to the feed itself (xmlUrl) and to the management web page (htmlUrl). And if the latter is not critical, then without a link to the feed the generated OPML file is useless.

When I import feeds from OPML, I can open the feed properties window ("Folder Properties"), but the only text data I can see is "Name" (taken from "text" or "title") and "Location" (assigned to the feed by the application, and looks like `mailbox://nobody@Feeds/Google Alerts. 941f2f87`). So the feed properties do not have the feed address (xmlUrl), which would allow it to be uniquely identified with feeds in the OPML file, feeds in another aggregator application, or with the Google Alerts interface. Also, when importing, the htmlUrl address, which is used to specify the address of the web interface for managing feeds (useless information for the application, but sometimes useful to the user), seems to be lost.

Also, as far as I understand, Thunderbird does not provide the user with the ability to see the date a feed was added to the application (or filter or sort feeds by this property), or an error log when updating it. Is this correct?

I imported an OPML file with 1872 feeds into Thunderbird 140.0b2 (64-bit), and having no other way to tell if all the feeds were imported successfully, I exported the result to OPML. It turned out that 1871 feeds were imported. I have no idea which feed was skipped. I can figure this out after processing using a spreadsheet, but it would be much more convenient to get a list of erroneous feeds with errors right in the import window.

How do I enable the display of the number of selected feeds? I have all toolbars enabled, but as I select feeds in the navigation panel, I don't see the changing number anywhere. The context menu of selected feeds only has the following items:

1. Options
2. Open in New Tab
3. Open in New Window
4. Delete
5. Move To >
6. Copy To >
7. Compact
8. Mark Folder as Read

currently experiencing error messages regarding my verified address(s) for sending (?)! Had to stop using service temporarily, (I hope) , until resolved...Any response would be welcome Thanx ..

hello all know i ma have asked this recently but either never got an answer or forgot the answer please allow me to ask again/ In my drafts folder when i put something in there should it not be from the actual person that send it> well almost everything in there says my name from and too and not the actual person or company that sent it. i will send you something every thing in the drafts folder has a yellow label at the bottom and the photo i am sending will show you. Now even as far back as 2016 i have some things i sent to drafts and they have my name from and too. I think my Thunderbird is just messed up ok send one photo of just the yellowline at the bottom and send a draft i had saved from 2019 that has the same yellow line

Hi! I'm trying to set Thunderbird as the operating system default under Win 11. I tried to follow Mozilla's instructions: 1. Open the Settings application by pressing and releasing the Windows Start button, then clicking the gear icon. 2. Click the Apps icon, then click Default Apps in the list. 3. Click the icon under the heading Email to show your choices. 4. Select Thunderbird. The trouble is that at n. 3 there is no choice. There is only 'OutlookAccounts' and this item cannot be deleted or replaced. Can you help? All the best, Robifiori

I need to find appointments in my Calendar...however, when I open the "Find", it only allows messages and contact searches. Is there another way to search the Calendar?

Thank you, Nancy

I want to create a semi-automated email, where the body of the email is supplied from a text file. The email is created using bash script that is launched from a desktop icon. My system is Linux Mint.

This works quite well except that if the email body contains commas then everything from the comma on-wards does not appear. For example if the email body should be "Hello Fred, In response to your email of the...", what appears is "Hello Fred".

I have tried changing the HTML/Text settings in Thunderbird, but to no avail. Have also tried creating an email from the terminal, but again the result is the same.

I would very much appreciate some guidance with this.

Thunderbird is set as my default email client on my desktop Windows 10 in the default apps and it's set in the Default Programs control panel but when I try to send a document on my desktop to mail recipient, a message comes up saying there is no email program associated to perform the requested action. It is set in Thunderbird as well as the default mail client. Cortana is no longer accessible on Windows 10 on my pc. Thunderbird is set as the email client in the registry settings, I have only a few Startup programs running on startup and cleared the cache in Thunderbird so I don't know what else to do to fix this?

Whenever I go to delete just one email in Thunderbird, every so often it will also delete the email that comes after it. So I have to go into the Deleted Messages folder and move the email back that I didn't want to delete. My Thunderbird stays updated automatically so that is not the issue. I've cleared the Thunderbird cache many times and that didn't fix the issue and my IMAP folders are synced that I know of but not sure about all the folders and not sure how to do that. I didn't have any issues with this until several months ago for no particular reason I can think of. I really don't want to uninstall and reinstall Thunderbird if I don't have to, if there is another fix if anyone has a solution. Couldn't find anything online except for the steps above I already did.

EDIT: it was an add-on. Issue wasn't replicated in troubleshooting mode.

old post: Yes, I have the account setting on for including signature in replies. It only seems to happen when I use the Reply button that's on the bottom-right -- the biggest one, at the bottom of the thread. When I use that button, a field appears below the thread, where I can type my reply, but my signature isn't there, nor is it included in the message found in the Sent folder. When I reply to an email individually, a new window opens with a field populated by my signature. So this seems like a bug to me, unless there is some obscure setting for this that I can't find. I am a new/returned user so I wanted to check in here first. If others think this is a bug, I'll go through the Bugzilla process.

In the screenshot: the reply button at the bottom doesn't include signature, while the reply button in the top right area does include signature.

I have no idea why, but TB is wonking out lately with strange errors?

The folder '[Gmail]/Sent Mail on me@mydomain.com' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again.

I have a ton of space and have not changed anything on the PC?

Any ideas?