Thunderbird Community Forum

Hi, In profiles, I have several, many of which are up to date and 2 are large, one which is meant to be my current profile at about 2.5 Gb and another at 3.6 Gb (plus others of about 50 Mb) - see screenshot. What is going on?

I quite often get this message, though it tends not to be a problem later "Unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox"

One of the solutions seems to be Compact a File. How do I do this?

When I try to send a new e-mail the address list which appeard on the left of the screen has now vanished and I am unable to Bcc several contacts with the same massage. Can someone tell me please how to get the list back on the screen when I select 'New Message' Thank you Bernard Solca

When I receive a newsletter from my club, it doesn't show the pictures. It does describe the picture and warns it might be AI generated. If I reply to the email or forward it, the pictures are displayed. I suspect this might be a settings problem. The original email includes:

[image: A picnic table and benches on a stone surface AI-generated content may be incorrect.] [image: A group of people dancing in a room with lights AI-generated content may be incorrect.]

[image: A person and person standing next to a vase AI-generated content

may be incorrect.] [image: A person sitting at a table with food on it AI-generated content may be incorrect.] [image: A group of people sitting at a table with plates of food AI-generated content may be incorrect.]

[image: A group of people dancing in a room with lights AI-generated content may be incorrect.] [image: A group of women posing for a photo AI-generated content may be incorrect.] [image: A group of people standing in a room with lights AI-generated content may be incorrect.]

Can anyone shed some light on this?

Dear Sir or Madam,

I have lost all stored folders with my email correspondence from the Local Folders for an unknown reason (I restarted my computer, and they disappeared). I can find some of these emails using the search option, but I cannot see the path of their storage location. I have checked my Profile/Mail/Local Folders, but they are not there. Are they stored on the server? How can I recover these folders?

Thank you very much in advance,

Jasmina

I have 2 hotmail accounts that Thunderbird can access but my wife's one has not since set up.

I have had to set up new email account for my wife because her one she has used for 10 years will end after 6th January 2026 because email service provider is ceasing email business. I have an hotmail address that has worked seamlessly with Thunderbird for 10 years. If it is tried in Thunderbird to access the new account to check for new mail it either states not authorised or not connected. I have tried adjusting settings to be same as mine but not succeed in solving. I am at a loss. Maybe it was easier set up accounts 10 years ago?

Sorry - I feel as though I'm monopolising this forum at the moment!

In my Menu bar, I have Delete, but, using this, I can only delete emails from the Unified list, not individual accounts. I CAN delete from individual accounts if I select the email, right click and select delete. Seems odd

Greetings. I would like to import a *.pst file from outlook 2016. Both outlook and thunderbird are installed on the same computer. When using the import tool, the status goes to 33% and stops. How might I troubleshoot this? Thanks

Hi, I use thunderbird 140.6.0 esr for Linux (Debian 12 with KDE 5). After opening Thunderbird, I am asked for the password to retrieve mail. If I make a mistake when typing it in, I have no chance to correct the password and have to restart TB. There is a correction window for the SENT password.

I just downloaded Thunderbird because Outlook is doing a bad job or preventing on these junk emails and I'm wasting too much time sifting through all the junk emails every hour. Now I have Thunderbird and I don't see an option to mark an email that is in my junk folder as not junk.

I recently went back from Thunderbird daily to the release channel when I set up my new PC.

1. On opening an email - The Subject display in Daily Version is Bold and according to the font as set in Thunderbird Settings. Just Perfect. It is not the same in the Release Channel. Looks not so nice.

2. In Release Channel -- under settings If I choose to display the "Name Only" under Message List for address display format. It ignores

3. Release channel is ver 146.0.1 .. If I go back to Thunderbird daily .. will I be able to use the same profile used for the Release channel?

With my thanks in advance

Hello,

I'm having a problem moving messages from one folder to another. There's one message which will not move no matter what I do. I'd like to turn off QuickFolders so that I can determine whether it causes the problem. How do I turn QuickFolders off, and then when I'm done with my experiment, turn it back on again?

an year ago on 11/25/24, I have raised this same issue https://support.mozilla.org/en-US/questions/1475852#question-reply Another user https://support.mozilla.org/en-US/user/davidsk/ replied that it is a bug ! I still have the same problem !!

My hard disk is again almost full. And it is primarily Thunderbird bloated folders.

In the MAC hard-disk, size of the many of the folders stored in local directory, are much larger that the size on TB.

For reference, On TB, "_cc folder" is 2.0 GB On Mac Finder, "_cc folder" is 13.63 GB

I have right-click the folder and press "compact". The folder on TB reduces in size. But, the folder on the Mac harddrive does not reduce in size.

Thunderbird 115.4.1 (64-bit) on macOS 26.1 Server Type : POP Mail Server

Appreciate help to get this fixed.

Thanks Attached screenshots

I was working with thunderbird today. Was in a specific email folder I had named "reference" that I use to store various emails, probably around 50 emails in there. Suddenly they all deleted from the folder as I was watching the screen. Checked spam/trash folders and nothing. Also logged into my webmail provider and nothing there either. Any idea what could have happened here? They just seem to have literally vanished. Have used Thunderbird a number of years and never experienced anything like this.

i am crying here i have changed my password for Comcast several times but i think ih ave screwed up The smtp server i am not sure wast do do there this is what i have can yu please tell me what to do please help i t will not et me send please

Thunderbird has managed to keep all the message headers however the body of EVERY email is now empty. I had archives of email going back to the 80's and it's all gone. I tried to import backups again but TB throws away the body of the messages.

Note that there are many different email address formats in use from regular TCP/IP, XNS, UUCP, Mainframe 8.8, and others. The headers are there and show the addresses but the content is totally empty for every message.

Before TB gets a hold of them, I can read them so I know the data is there and it is TB that is removing it.

Please help

I use Thunderbird 115.18.0 on a Windows 7 machine. I wish to transfer all my Thunderbird data to a machine running Linux Mint 21.3 which has Thunderbird 128.12.0esr. I have not been successful after many tries. Could this be because the Thunderbird revisions are different? If so, can I get 115.18.0 to install on my Mint machine? If not how should I proceed? I have already tried creating a new .thunderbird directory with ********.default directory from the other machine. I have also tried a new .thunderbird directory with a the ********default-release directory as directed by one site.