Komunitné fórum Thunderbird

Hi,

I just cannot find any information on how Thunderbird designers see the Threads / Threading features to be used. How would I use it ? What are my (individual) choices for configuration ? etc.

The only info I can find is : [how to manage and turn on/off the feature].

...and of course lots unhappy user voices across the forums.

So: How would I use it ? What are my (individual) choices for configuration ? etc. Please link the respective Mozilla resource (blog, help, user design doc, ... whatever).

Ah, to start with, a description of how the feature is meant to behave, can be a start. (Sorry, I was just too stupid to find that)

My laptop was stolen. Having bought a new laptop and downloaded Thunderbird I can see all my incoming emails Ok, but the problem is that I cannot see any sent emails since August 2023 and I send 10 or more every day. Any ideas on how I can find the sent ones for this year? Ones I have sent since in the last couple of days are showing.

Hi, I just updated by account with 2FA

The stored passwords are all lost now, I can still see them in my phone (unsynced due to logged out) but cannot see any password in my PC.

Please help

I have over 17,000 emails in my inbox and Thunderbird won't let me send any more out. I tried to cull blocks of emails (e.g., all before 2024) but it wouldn't let me do that; it made me do one at a time.

Is there no way I can delete a whole lot in one go? SW

My problem has escalated. Before, I wasn't able to fix the constant request for password on that account. Now, after deleting the account on my laptop, I can't even add it back. Error message says "incoming server already exists." I do have another email account with the same domain, but this is not a problem on my desktop computer, only on my laptop. (It used to work find on my laptop, too, but it stopped receiving emails on 8/20/)

Hello, I have a problem with Thunderbird that I don't understand and can't solve. Thunderbird can't connect to my IMAP account on the remote server perfectly even after a clean install. Incoming emails are downloaded, but only 82 out of 5600 outgoing emails. All login details are correct, I tried STARTTLS settings on the correct ports, but there is no change. I see in the Activity Manager that the connection between the server and the client is lost several times a minute. There is no network error, both I and the internet service provider have checked the connection. The client is running the Win11 operating system.

Robert

My Thunderbird was not finding messages that I could see were there.

I followed the advice here https://support.mozilla.org/en-US/kb/rebuilding-global-database.

I deleted the (large) global-messages-db.sqlite (I have been using Thunderbird for a long time - and I am monthly contributor).

The rebuild gets to a certain point and then stops (as indicated by Tools Activity Manager). Always at the same point. I guess there is a bad message in there somewhere. But now I am worse off than before.

I tried rebuilding several times. I have also compacted the account folders of the account that stopped and then tried rebuilding.

I have many years of messages in there and I need a functioning search. What can I do?

Hi. I've never had problems with Thunderbird before but recently I can't get my new emails. I get an error that says "Login to server pop.gmail.com with username *****@telus.net failed." I click retry and get the same thing again. After that I get "Sending of username did not succeed. Mail server pop.gmail.com responded: Too many commands before auth e21mb51124658oos". Any ideas to help fix this? It was all working fine until all of a sudden it wasn't. I made no changes to anything. I have no problem getting my email on gmail or in Outlook. Thanks

Had this problem suddenly crop up since the update of one of my accounts not sending mail due to timeouts. I've not changed any passwords or settings since I had it working last. The message is the "Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) [my workplace's SMTP server] timed out. Try again." one, and it's preventing me from sending any emails.

Specifics:

• It's one account (my work one: work runs an Outlook/Microsoft mail server).
• My personal account (gmail) sends fine. Both accounts recieve email fine too, so this is just one direction on one account.

Things I've tried:

• Switching my Firewall off makes no difference, so it's not a firewall problem
• It's not that the emails I'm trying to send are too large, one word test emails also don't send
• Extending the timeout time by 3x doesn't help

I also opened a second computer not yet running the latest version - the account worked fine. Then applied the upgrade and that broke things in exactly the same way as described above. So I'm pretty sure this is an issue caused by the upgrade in some way. Not sure if other people with Outlook servers are having the same problem or if there's any workaround available but would appreciate advice.

When trying to add my outlook.com email account to Thunderbird 143.0.1, using the instructions at https://support.mozilla.org/en-US/kb/thunderbird-and-exchange, I get an "Exchange auth error." I'm able to add the account manually using imap, but I want to use Exchange so I can access my outlook.com calendar and contact when TB is updated to include them.

When sending an email using the keyboard shortcut, the settings tell me that I can set TB to give me a confirmation prompt. Why can't I get a confirmation prompt when using the Send button? Is there any way to make TB do that?

I set TB to run a spell check before sending, and that gives me an opportunity to cancel the Send operation. But it only works if the email contains a misspelling.

Thank you.

Hello, Attached are the messages I have been receiving ever since 6 October 2025. I've tried to read about fixing these myself, to no avail. (I mean, I can Read; I just can't fix this.) I've tried to Compact ALL folders individually. But that seemed to do nothing. (Before 6 October, the Thunderbird window would at least "flicker" a little after compact.) Trash is empty. Tried disabling McAfee AntiVirus & Firewall. And, no, this isn't happening because I'm using McAfee; I've been using McAfee since Windows XP and Thunderbird since before it "broke away" from Mozilla. They have, until 6 October, played nice together. I really like Thunderbird so I do not want to find another email client/program/what-have-you. There are LOTS of saved emails that I cannot move/copy to "save space", so...Help? Please?

Thanking you in advance, tonyg

P.S.-I am not computer illiterate. But, slow, easy to follow, non-BIOS changing, step by step directions would be preferred.

My Spectrum password was changed and now I cannot get direct access to TB. For some reason TB is not linking up with Spectrum password. I get a popup panel saying "Login to server Mail.TWC.Com with username jomar159@hvc.rr.com failed" Retry Enter New password Cancel I have 2 accounts on TB 1 is wmarks1 and the other is jomar159@hvc.rr.com HELP

I recently switched to Thunderbird from MS Office10 Outlook. Formerly, once I downloaded an email it was stored on my hard drive until I erased it. I could delete the email from the Earthlink account online, and still have it stored, thus staying under the 100mb storage limit in Earthlink. With Thunderbird, when I delete an email on line it disappears from Thunderbird.

How do I get Thunderbird to save my emails to my hard drive, so that I can delete them from my Earthlink account?

Phil