Thunderbird Community Forum

Having a problem with all emails that are supposed to be going to account1@gmail.com are being diverted to account2@gmail.com, then the emails are being transferred in a "Blocked" state to the intended email address - account1@gmail.com Very frustrating, as I've searched heaps of places (including the settings of both accounts - No Links) for over 6 weeks to no avail..... or am I missing something staring back at me

Example is attached file

When viewing email, either in preview or by double clicking from the list of emails, if the subject line is too long for one row, instead of either adding a row for display, or truncating the subject text, Tbird vertically centers the multi-line subject text, which cuts off the top and bottom of the lines. This makes it virtually unreadable. Is there a way to fix this?

Thanks, KR

I am using Thunderbird 140.6.0esr (64-bit) desktop on Windows 11. I have multiple email accounts setup, two of which are Yahoo accounts. On 12/21, one of the Yahoo accounts stopped delivering messages to Thunderbird from Yahoo while the other continues to download them. Thunderbird does logon to Yahoo for the account in question and gives me a message that there are no messages to download. When I logon to Yahoo mail through a browser, there is plenty of mail that has been received after 12/21 which should be downloading.

Both of the Yahoo accounts are setup exactly the same... POP Mail Server pop.mail.yahoo.com Port 995 SSL / TLS OAuth2

Outgoing server smtp.mail.yahoo.com Port 465 SSL / TLS OAuth2

I removed the password from Thunderbird for the account not delivering mail, re-entered it, restarted Thunderbird and got the same results. I changed the password (through yahoo mail), entered the new password into Thunderbird and got the same results. I also tried restarting Thunderbird again after entering the new password which made no difference.

Any help and suggestions would be greatly appreciated.

Thanks, Lew

emails over 5 days old are deleted: -Hi i had trouble with outlook so changed to thunderbird for two email accounts i have. both are IMAP. one account works fine , old emails are stored asa re deleted and sent, however for my main (business) email, if i turn the computer off, i basically loose anything older than 5 days. i have the settings set to do not delete, but it keeps happening. sent items are kept, as are deleted emails, so i cant understand what is going on. the account also clears the server so i cant bring them back from there either. any ideas? if it keeps like this i will have to go back to outlook.

Sur mon Thunderbird lorsque j’ouvre les messages arrivant dans la boite « Courrier entrant » de mon compte mail principal, celui vers lequel je fais arriver tous les messages envoyés à toutes mes adresses mail, eric.friesguggenheim@orange.fr ils ne se présentent pas normalement en mode de lecture de message mais en mode « Rédaction » et en bas de page apparaît le mode d’erreur suivant : Une identité unique n’a pas été trouvée. Le message sera envoyé en utilisant l’adresse d’expédition actuelle avec les paramètres de l’identité Éric Fries Guggenheim <eric.friesguggenheim@orange.fr>. Si je les sauvegarde à ce moment-là ils se retrouvent dans la boîte brouillon de l’adresse principale.

Lorsque j’ouvre les messages arrivant dans la boite « Courrier entrant » de mon compte mail principal, celui vers lequel je fais arriver tous les messages envoyés à toutes mes adresses mail, prénom.nom@orange.fr ils ne se présentent pas normalement en mode de lecture de message mais en mode « Rédaction » et en bas de page apparaît le mode d’erreur suivant : Une identité unique n’a pas été trouvée. Le message sera envoyé en utilisant l’adresse d’expédition actuelle avec les paramètres de l’identité prénom.nom@orange.fr Si je les sauvegarde à ce moment-là ils se retrouvent dans la boîte brouillon de l’adresse principale.

Causes possibles ? Comment réparer ?

I've used Thunderbird for over a decade with the same email address and log in info. My email address is [edited]@pacbell.net. I receive email regularly, but starting about 3 weeks ago, outgoing email actually gets sent only about 30% of the time I hit the send button, and the rest of the time I get the following message:

"Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) outbound.att.net failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again.

After I try several more times, I can usually get the email to go through.

What can be done to fix this?

Tom House [edited]@pacbell.net

A search showed that others have experienced this same error message, but as far as I can tell, they all were unable to access their email. These messages began appearing about a month ago. They pop up in Troubleshooting Mode. They did not in Windows Safe Mode. AVG and ZoneAlarm are not the culprits.

I'm having troubles with Thunderbird version 140.6.0esr(64-bits) on Ubuntu 25.10 (fully updated). It's installed as a snap.

The first problem is that I have a selected mail with an attachment, but nowhere in the mail itself I can see or find or open or download that attachment.

The second problem is that for the inbox and mail body I can't scroll. There are no scrollbars, and the mouse-wheel doesn't work.

Is it a problem with snap? With Ubuntu? Or with Thunderbird itself? Could if be a configuration problem (I've tried quite a lot of things already)?

Filters *unreliably* sort the mail into their target files. I have reconstructed the filters from scratch twice, both times with identical, unpredictable results: each filter works properly on the inbox when tested, but each filter only works *sometimes* in the normal course of getting (IMAP) and sorting mail. When getting a batch of mail, some messages are sorted, while others are not. When testing the same filters on the same (still unsorted but already picked up) messages, those same messages are recognized and sorted correctly. The question is: Why are the filters not working reliably during message pickup?

The mail server is running "Debian stable" Dovecot. It seems to work well; I'm not *missing* any messages, but they're not always getting into the right folders. Instead, some messages, and sometimes quite a few messages, may remain in the inbox. I surmise that the problem is in Thunderbird, where somehow the downloading process somehow undermines the sorting process. A queuing issue? A communications-with-Dovecot issue? (The server is in Paris and I'm in North America, but there doesn't seem to be any undue latency that I can detect. The server is not very busy, that's for sure.)

In case it helps: I filter mostly on `DKIM-Signature`, `Authentication-Results`, and `Received` header entries. In a couple of cases, I use `Body`. I'm almost always using "match any" (as opposed to "match all").

Hi, I have been using Thunderbird on my Windows PC for many years. I installed Thunderbird on my Android phone recently but it doesn't work, no emails are seen, and it doesn't seem to collect new ones either. What steps do I need to take to fix it? Regards, Paul

For about a month or more I can right-click on a spam message, select Mark as Spam and the message disappears to the Spam folder as expected. But, two days later a message from the same sender comes into my mail. This used to work very well but not now. I am using SpamAssassin. Items that match a manual add stay in my IN folder but are marked in the text as suspected spam - they are not moved automatically until I open them up. Spam filtering is broken.

Been getting a bunch of this, usually in my TB TRASH folder, I think from the Outlook online server.

The server couldn't retrieve the following message:

Subject: "<Removed for PII>"

From: "Not available" ("Not available")

Sent date: 10/31/2024 2:25:02 PM

The message hasn't been deleted. You might be able to view it using either Outlook or Outlook Web App. You can also contact the sender to find out what the message says.

I have 2 personal email accounts: Outlook and Gmail. My client is Thunderbird. Running Win11 25H2. Far as I know, problem began recently. This is a screenshot of some messages from TBirds TRASH folder.

User's image (In images) Thunderbird just tried to fetch emails. Got a notification that it could not get messages, this time from GMail.

What does this mean? Outlook/Gmail servers or Thunderbird? What do I need to do?

What is the best way to downgrade from Thunderbird 146.0.1 to the most recent esr release (140.6.0esr?) I seem to recall reading that 146 featured some new data formats that may not be compatible with 140, but I don't find the specifics right now.

The reason I'm downgrading is bugs. I'm aware of the folder naming issue, which I dealt with. But I find a new (to me) bug where 146 will not play notification sounds. This occurs on two of the four (Windows 10 and 11) computers in my house.

It's hard to pin down when exactly it will happen but Thunderbird regularly freezes from roughly 10~15 seconds after clicking the red close button. In that time TB doesn't allow the desktop or any other app to become active until it finishes whatever it's doing. The bug occurs after I've brought it to the front and then close it. For example, an email just arrived so I checked that then closed TB. That's when it hung.

I've found it also happens after discarding a draft so that I'm unable to open or even highlight other emails in my Inbox for a short time. This hanging started happening right after I upgraded to Mac OS X 26.2 a few weeks ago. So far I've tried...

1) Troubleshoot Mode. No change. Even with no extensions or themes installed the problem shows up. 2) Increased the value of mail.db.idle_limit 10X to 3000000. 3) Did a clean reinstall of the app (v146.0.1). I redid Settings from scratch and imported emails from a previous installation. The size of the Profiles folder is 991MB. 4) no anti-virus software is installed.

It's similar to this bug. I made a comment there 2-3 weeks ago but no reply so far. https://bugzilla.mozilla.org/show_bug.cgi?id=1998881

Also similar to this... But I don't have a calendar installed. https://bugzilla.mozilla.org/show_bug.cgi?id=2000460

Not sure what else to try. Any suggestions?

Hi, About a week ago I tried to access my email in Thunderbird and got no result. After doing some research I decided to follow some advice to delete my 2 Thunderbird accounts and then recreate them as 2 new accounts. I then discovered that many of my saved email folders and subfolders were missing. Is there some way to restore these folders & subfolders? Also, is there some way the restore a folder and all of its subfolder at once rather than having to restore each subfolder individually before restoring the main folder?

Multiple emails on different computers were working fine before Tuesday using Thunderbird. All of the sudden on Tuesday, all computers cannot send email, but have no issues on receiving. The "Login to server smtp.office365.com with username @##@.com failed" message appears. I have read all of the issues prior with this message and have made sure everything matches the suggestions and it has been that way since setup and did work fine until Tuesday. Is anyone else having issues? Is it a Microsoft issue?

Thanks in advance!

Hello,

I have a MacBook Air M2, and I'm experiencing energy usage issues related to Thunderbird. This has kept happening for a long time now actually, surviving through at least two Mac OS updates, and a huge number of TB updates. Everything's up to date. I tried to follow this: https://support.mozilla.org/en-US/questions/1269944 and this: https://wiki.mozilla.org/Thunderbird:Testing:Memory_Usage_Problems?_gl=1*86dj4d*_ga*MTkzNzQ0MjA3MS4xNzYyOTY4OTMx*_ga_2VC139B3XV*czE3NjMzMTM3NDckbzIkZzAkdDE3NjMzMTM3NDckajYwJGwwJGgw but didn't succeed. Actually, in my case, the issue is more noticeable: I normally have TB open in background - sometimes everything's fine, and the battery goes down as normal, while sometimes instead the battery drops quickly, and checking in the Mac activity monitor I can see that the CPU usage of TB is totally abnormal. When this happens, I can actually see the activity bar in TB being live (bottom right corner, as it happens when TB is checking for new mails), but never disappearing. When I notice it, I just reboot TB, and the bar shuts off as normal after a quick mail check. Moreover, checking the 24hr energy usage by app, TB is often on top with nonsense values.

I tried multiple times to rebuild the database, and do most of the tricks suggested, but didn't fix. Yes I have a huge mail archive, but the problem is not the standard management of this database: basically it seems that every now and then, TB decides to run some activity which it gets stuck in, and this kills the CPU.

Thank you in advance for your help!

I installed Thunderbird and Proton as per "Resist kit" Australia and New Zealand but have not been able to arrange for transfer of one Gmail account completely and process is stalled. I'm required to sign in with a password for this Gmail account but only to set it up again. Who can I speak with please?

Why suddenly has Thunderbird stopped logging my messages that I filter manually even though I have logging enabled? It used to work just fine. It no longer logs ANY message filtering. I have not changed any settings. I depend on it especially to confirm that new filters I set are working properly. How can i fix this?