Thunderbird Community Forum

I know that nobody cares out there but I'd like to tell you so you understand why. Have used Thunderbird for quite a while. Recently, however, I have WAY too many mystery problems: server connections timing out or unavailable, disappearing emails, correspondents NOT getting my emails, me not getting their emails. I've had to reinstall and setup the program several times in the last few months. Each time, new problems. Really HATE to abandon independent developers/organizations in favor of commercial programs, but I need a app I can rely on. Gonna see how I do for another couple of weeks. Is there an app that can scan settings and flag problems? Program's getting fairly complicated. Remember Scotty, "The more they overthink the plumbing, the easier it is to stop up the drain."

Hello

After a Thunderbird update today all the emails in my inbox suddenly disappeared, and I was left with the message saying that the inbox was empty! Hundreds of emails - among them quite a few very important ones - were simply gone! What do I do??? What has happened and how do I retrieve the missing messages? The funny thing is that it's only the inbox that has been emptied. The emails that my filters have sent to my alias-boxes are still there. I need my emails. Where have they gone??

Suddenly last week, the behavior of my Local Folders emails changed. Double clicking caused a reply-to default, not an open in a new window default. All sub-folders seem to have this problem even new ones. Right clicking shows a menu where New Message From template is the default. No other accounts have this problem, but Local Folders is my main email area. Flags show the Inbox as an Inbox, not a Template. Opening a new subfolder under Local Folders indicates that Local Folders is renamed somehow as Templates somewhere in the underside of Thunderbird. I see threads about recent All Mail issues, but this seems different. I have also tried JustAnswers but am unsure that the issue will be fixed with just redoing the Inbox folder. I have also tried the Conifg Editor to change the default right click menus as recommended in various help forums but to no avail. It looks like some part of Thunderbird is handling Local Folders as before, but other parts are assuming it is a Templates folder with Templates characteristics, which it is not. Is there something else I should try?

I had a desktop drive fail. While it was out for recovery I started using a different computer. About 5 weeks later, I now that I have the restored drive and its data from which I can restore the original profile with its address book, messages, and folder hierarchy. Will it possible to now import /combine the the email history from the second profile?

AS of 2 days ago can't send to a mailing list through gmail. Same address list exported and imported into Gmail address book works finne when sent directly from gmail via browser, windows 11.

Used this for many years.

Shows red stop light Mesage Blocked

Have server settings changed?

Hi, my Thunderbird calendar reminders are coming up 4 hours after the meeting.

Running Kubuntu. System locale/timezone OK, TBird set to use system time (though manually making it the same didn't help). HW Clock matches system time. Pacific/Auckland.

Tried exporting all my appointments and re-importing them - no change.

Thunderbird says this "the certificate for imap.supanet.com does not come from a trusted source". however I have used this email for some time and am happy with it . can I continue with this certificate as I do trust this source

Suddenly TB stopped checking mail on time intervals set in the server settings. It does check mail at startup and when manually triggered. MacOs 15.7.3 MacBook pro M1

My ISP, Plusnet, has recently migrated stored email to a new organisation called Greenby. From the day that Greenby confirmed that the migration was complete, no new email has appeared in Thunderbird.

They said that there was nothing to do, although I had to confirm some credentials such as username and password.

Clearly, there was something to do! How can I restart the download of email from my new Greenby webmail account to Thunderbird?

So far I used MS Outlook for Calendar and Contacts as well beside to mail. How can I import Those data from Outlook and synchronise with my Samsung A53 mobile (Samsung calendar and contacts) without using MS cloud?

Hi I was using TB 142 without problems. When upgrading to 143 ou 144.B4 I have problems sending mails to all users after some times. Usually the first mails are sent immediatly but after around 10 mails, I have very slow response (varies from 5 sec to more than 1 minute and sometimes timeout). Usually quitting TB solves the problem but this is very annoying. I went back to 140LTS and sems to have no longer this problem. This was tested on many diffrent networks. I am running under Fedora release 42

Thanks

Since the most recent update, Thunderbird doesn't load the email when clicking on the entry in the inbox, and then when double clicking to open in a new tab, the main window is blank with a Loading... text on the top left, and the URL shown above starts with chrome://

Running Thunderbird 146.0

Since the last update to version 146.00, under the folder Archives, both the sub folders for 2024 and 2025 have changed to Drafts and I cannot change them back to show the year folder (2024 & 2025). None of my other yearly Archived sub-folders are affected from 2016 - 2023.

Under Properties, both show their respective year correctly - i.e. imap://wbriggs1%40sky.com@imap.mail.yahoo.com/Archive/2024 and; imap://wbriggs1%40sky.com@imap.mail.yahoo.com/Archive/2025

I attach screenshots showing the issue and any help would be appreciated.

In essence, after trying various ways of trying to sort the above out, it would be helpfull Mozilla if under the Folder Properties box, I could just change the name back from Drafts to the appropriate year. However, in the folder box when selecting the Name line, it won't allow you to alter the folder name. This would seem the simple solution to any alteration of Folders by being allowed to rename them back to the original name.

I had two emails on my Thunderbird. I deleted one by mistake. The G Mail account still works. I tried to reenter my Spectrum Account and I keep getting that my configuration user name or password are wrong. I checked all settings and they appear to be correct. I also deleted the account and tried reinstalling it and got the same result. I also tried to enter a new email account that I just got. I had the same result. Keeps asking me to reenter the password. (would be helpful if it would say why it is wrong (password, setting, etc.) I spent hours on this today. I worked with the Spectrum agent and we couldn't fix it. Bur it seems to be a general problem because I get the same result with both accounts.

Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp-mail.outlook.com failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again.

Seem to get this (or similar) error frequently. It's like the things I set randomly revert or change. Have sent images of settings. I certainly don't know what to do.

I am using Version 146.0, released December 9, 2025, on a Win 11 Pro, v. 25H2 pc. No problems until today. Messages won't download from two AT&T (ameritech.net) accounts. T-bird is not asking for mail key. No change after restarting T-bird; same result after rebooting pc. How do I restore email access? Thanks.