Thunderbird Community Forum

I was cleaning up my Inbox when I looked at the "Important" folder. I read in a number of places that this is a "Gmail" thing, and messages get in this folder apart from any action etc on my part.

I have a couple questions.

FIRST, are the emails in the "Important" folder only in that folder or are copies in there? I deleted a number of 2 to 3 year old emails that I do not consider important today. The closer I get to this year [2025], the more careful I get.

SECOND, how can the auto-population of that folder be stopped and the folder be deleted? I keep my important emails in designated folders so I can find them.

Thanks in advance

I keep my mail (both sent and received) in local mail folders. My server is gmail, and sent mail is put in gmail's sent folder by default. Every few months, I copy those messages to a local folder, and after I back them up, I delete the server copy.

What to my dismay, I discovered today that only the message headers, and not the messages were present in the local folder, though they had been when downloaded. Looking at the file sizes, I found the sent file to be 0 Kb, and sent.msf 255 Kb, when sent should have been around 60 Kb long.

I have been able to restore the messages from backup (whew!), but I have no idea how then sent file was wiped out. I know I did not do it.

Has anyone else had this happen? Is there a preventive measure I should take?

After I migrated everything to a different computer, 'Local folders' no longer appears in the side bar, so I cannot archive messages locally.

Can some kind person please help me to reinstate it?

Recently, I have experienced an erroneous browser launch, simply by clicking on the title of the message in the list pane. This problem seems to occur when clicking on emails from a particular UK supermarket (tesco.com) and the web page opened has a long and complicated URL, but the page contains only a single pixel which shows up as a white dot on a black background.

Obviously, it is likely that there is something strange about that source, but the problem doesn't occur if I click on the same email in a different email client (in this case Evolution).

I have tried various Settings as advised by web searches and also the solutions suggested in Thunderbird Help (Troubleshooting Mode and Troubleshooting Information).

I am running Thunderbird 140.5.0esr (64-bit) on Kubuntu Linux 24.04.

There is a message in my Inbox that cannot be deleted or moved. I've tried re-starting Firefox several times to no avail.

The stubborn message is actually completely blank when viewed in Tbird. Also - the stubborn message has already been moved to another folder where it can be read (i.e. message contents available). Yet - this stubborn "ghost" mail message will not disappear from my Inbox!?

I am connected to an Exchange email server - one of the "shared" servers administered by Microsoft.

I had hoped to get away from the insanity of Outlook, but it seems when it comes to email, there is no escape!

And finally FWIW, When I view my Inbox in "Web Outlook", there is no "stubborn ghost message" in the Inbox - the message is where I moved it.

Hi all,

Unfortunately I deleted a folder, containing a lot of subfolders from my Local Folders. If possible I would like to restore the folder, including the subfolders.

Any help is much appreciated.

Kindest regards, Leo.

I apologize for the subject line, but there is no better way to describe the problem....

I've been using Thunderbird for a few months now and it has mostly worked well. Then this afternoon I was reading my mail in the Unified Inbox and I noticed something very odd. I had a number of emails showing in the header list with the same "From" and various subject lines. On the face of it, that wouldn't describe any weird behavior except that I noticed the subject lines absolutely didn't match the "From" information.

As I would go to read these emails, the email itself would be correct in the preview pane -- including showing the correct sender name and email -- but the "From" information in the header list pane would still be wrong.

I'm sorry that I can't post a screenshot to make this more clear because there is just too much personal information on screen. But these emails are from several different senders, received by several different email accounts. Everything is correct except that the "From" shown in the header pane is wrong. This is very obvious to me because I normally run entirely in the Unified Inbox with the emails sorted by the "From" information

One example is an email that is actually from "U.S. Department of Veterans Affairs <do-not-reply@notifications.va.gov>" which Thunderbird displays correctly in the preview pane (where I usually read my emails) and if I open the email itself, but the header pane says this email is From "Prepper-co <joshua@prepper-co.com>"

Another example is an email that is actually from "USPS Customer Support <uspscustomersupport@usps.gov>" but the header pane says it is from "Rainier Arms

These two examples were received in different email accounts that aren't even on the same server. I have other emails from these same senders that are shown correctly

I found this problem while using 150.0 (64-bit), which said 150.0.1 was available, so I restarted Thunderbird and it updated to 150.0.1 (64-bit) but the problem is the same.

The sorting of the Recent Destinations menu has changed and is now no longer usable. It is not sorted by most recent or any other obvious order. It now takes me more time to scan through the list to find what I want when it used to be a very useful/quick tool. Anyone else notice this new issue? Thanks!

Hi have various hotmail and live accounts already active in Thunderbird. Tonight, I tried to add a new hotmail account for my mom. The hotmail account is active and working well using the microsoft web browser.

I tried to add the new email to Thunderbird and in the first stage a green box with a checkmark appears " saying Configuration found in mozilla database.

IMAP box says: Incoming Imap SSL/TLS outlook.office365.com

Outgoing SMTP STARTTLS smtp-mail.outlook.com

username xxxxx.hotmail.com

I press done, and a yellow box appears saying "Unable to log in at server. Probably wrong configuration, username or password. Now I did notice on my other hotmail accounts in Thunderbird, the outgoing says: smtp.office365.com and NOT smtp-mail.outlook.com I tried making the new account exactly like my other 5 live/hotmail accounts. Outgoing> smtp.office365.com. And still no go. The new email addy won't connect.

So I thought, maybe it's a bad email or the way I created it. So I created a NEW hotmail email address and same thing. Followed all the steps and same yellow non connect error box appears. The setup in the picture is exactly like my other accounts - and they all work fine. Has anyone tried to add a hotmail addy recently? I never had these issues when I set up the other addresses 4 or 5 years ago. Thanks guys

One of my local folders of email disappeared: it is no longer displayed under Local Folders. A few days ago while using my mouse to move a message into one of the local folders, something happened, a peculiar message briefly displayed. At the time I did <Ctrl>-Z to undo whatever happened, but I didn't see any changes. That must be when the folder disappeared, but I'm not sure.

My other folders are still in place. I can't find the missing folder inside any of the other folders (junk, deleted, archive, etc.). Yet when I search for email in one of the missing folders, the messages are found. When I go into Troubleshooting Information, there is no Profile Directory listed, and when I click on the Open Directory button, nothing happens. (I've gone through the process of transferring Thunderbird accounts to new computers in the past.) I'm using Pop!_OS 22.04 Linux and Thunderbird 140.10.0esr. I backup my laptop using Back In Time. Any idea how can I fix this?

I am unable to add my Outlook email account to Thunderbird Desktop. I keep getting an authentication error when entering the Outlook password which I know is correct. Adding my Gmail account was no problem.

I (reluctantly) migrated my xfinity email account to yahoo and in the process of getting Thunderbird to access the yahoo account, it wiped out ALL of my folders. The folders are still there and accessible in yahoo but no longer show up in Thunderbird. Is there an easy way to fix this and get Thunderbird to show the folders? Thanks.

I want to get a list of email senders to an email account in Thunderbird as it is going to be closed and I want to notify those who still use it. Is there a way to do this?

This is a POP account and the emails are only available in Thunderbird.

All emails in my trash folder disappeared. I do not know if this is due to something I did, or some other reason. Is there any way to restore the deleted emails?