Thunderbird Community Forum

I am trying to set up a visualization of the columns of the main interface. Here's what I do:

1. Click on the list icon in the top right corner.
2. Uncheck the columns I want to hide. Specifically, From (CB), Recipient (CB), and Correspondents (CB).
3. Apply the selection to all folders: click on the icon in the top right corner, apply columns to.. > folders and its children... > select account > Confirm

These actions produce immediate results. However, the next day or a few days later, when I reopen the program, the column display changes. Sometimes in the main folder (inbox), sometimes in the subfolders.

Is this a known bug? Is there anything I can do to keep the desired column configuration stable?

Sending of the message failed. An error occurred while sending mail. The mail server responded: Mailbox full. Visit https://aka.ms/mailboxfull for more information.; STOREDRV.Submission.Exception:QuotaExceededException; Failed to process message due to a permanent exception with message [BeginDiagnosticData]Microsoft Unified Storage is full. QuotaExceededException: Microsoft Unified Storage is full.[EndDiagnosticData] [Hostname=GVXP250MB1449.EURP250.PROD.OUTLOOK.COM]. Please check the message and try again.

I get this message everytime I try and send emails

Hi,

My mail account was recently migrated to office365, and I saw that Thunderbird v145 and later supports this natively without the use of a plugin.

However when I follow the instructions to set this up I don't see the Account hub in the same way that's shown in the article.

https://blog.thunderbird.net/2025/11/thunderbird-adds-native-microsoft-exchange-email-support/

instead I see the one attached.

I've tried this on both Linux (ubuntu 24.04) and Window 11 both with my original profile and a completely blank installation. On Linux I've used both the Canonical supplied Snap (from the monthly/stable channel) and the download directly from thunderbird.net.

Any help appreciated.

Hallo ich brauche Unterstützung,

Wie/Wo kann ich diesen Ordner Spam' in meinem Thunderbird Account '[edited]@t-online.de IMAP' entfernen/löschen? Die Pfadangabe 'imap://juergen.plenske%40t-online.de@secureimap.t-online.de/INBOX/Junk' des ersten Ordners ist falsch. Der INBOX-Ordner auf t-online heist 'Spam' und funktioniert als zweiter Ordner (unterhalb) korrekt.

Vielen dank für eine Lösung dieses Problems.

I'm using Thunderbird 149.02 to make a local copy of all folders, messages and attachments on my yahoo mail account. I don't yet see an obvious way to issue a command to Thunderbird to accomplish this.

I'm using export.imap.mail.yahoo.com as the IMAP server as some of the folders have >10000 messages (none have >100000 messages, and there is no significant real-time email arriving to the account while I do this procedure.)

In settings/offline settings I have "automatically follow detected online state" and "download messages for offline use when going offline [yes].

In account settings/synchronization & storage I have Disk space: Synchronize all messages locally regardless of age"; "to recover disk space, old messages can be permanently deleted..." I have "Don't delete any messages" and "Always keep starred messages"

With these settings, I've tried (from the main menu) File -> Offline > Download/Sync now, then "Download and/or sync..." I have selected Mail Messages, and the Select button takes me to a table where I have selected the main account folder and all sub-folders.

With these settings, Thunderbird appears to go through some of the folders and downloads messages from, them, and after a while says there are no new messages (I don't have the specific text, but it ceases interacting with the server". If I repeat the Download/Sync now procedure, it appears to download more messages, will continue for a while, then stop in the same way.

When I compare the size of Thunderbird's local account folder, it appears to grow after each of these iterations, but is (after half dozen cycles through this) has only reached about 2/3 of the total stoage size reported by Yahoo. While I understand the storage mechanisms would differ significantly between yahoo and Thunderbird, I don't believe I've found a single sure-fire way to accomplish what I set out to do in the first place (which is get a complete copy, through IMAP, of all emails, folders and attachments.

What am I missing?

Thanks,

Dave

I can see where the Local Files are saved under .sdb folders and msf files. I can save these to a USB stick as a backup BUT can I perhaps open on another device also running Thunderbird. Is this possible and how? I can't see an 'open file' in Thunderbird.

I have been using Thunderbird with two POP3 Hotmail accounts for some time and I am trying to set up a third account with exactly the same configuration. However, both the automatic and the manual configurations failed. The new account receives mail, but the outgoing smtp server config seems to have a problem. Sending messages times out or keeps prompting for a new password.

The Hotmail account has POP3 and IMAP enabled. Thunderbird is set to receive all cookies. I cleared history and cache after every attempt and also temporarily disabled the firewall.

Any suggestions about what the problem could be?

In Firefox, to send an email, you click on the NEW EMAIL button in the tool bar and the email app appears. When you click on the TO button to add email addresses, the ADD RECIPIENT page appears and a list of people and their email addresses normally appear.

THERE IS NO LIST OF PEOPLE AND EMAIL ADDRESSES. They have been moved to the PEOPLE folder on the left side tool bar below the top MAIL icon. The email list in the PEOPLE folder is still in tact

My question is how do I correct this error which appears to have happened during an update.

One would think if you highlight the PEOPLE email list it could be moved back to the ADD RECIPIENT list but that does not appear to be possible.

What is the solution????????

I get the messgae 'Unable to write email to the mailbox...make sure the file system allows you write priviledges and you have enough disk space.' When I looked at the errors Thunderbird recorded I found thei:

pop3.server1.2: Incorporate write FAILED! Component returned failure code: 0x8007000e (NS_ERROR_OUT_OF_MEMORY) [nsIPop3Sink.incorporateWrite] NS_ERROR_OUT_OF_MEMORY: Component returned failure code: 0x8007000e (NS_ERROR_OUT_OF_MEMORY) [nsIPop3Sink.incorporateWrite]

   _actionRetrResponse resource:///modules/Pop3Client.sys.mjs:1625
   read resource:///modules/LineReader.sys.mjs:67

Pop3Client.sys.mjs:1627:24 pop3.server1.2: Got an error; name=pop3MessageWriteError Pop3Client.sys.mjs:1702:20 NS_ERROR_OUT_OF_MEMORY: Component returned failure code: 0x8007000e (NS_ERROR_OUT_OF_MEMORY) [nsIPop3Sink.incorporateWrite]

I recently had to restore my thunderbird app as I had issues with my laptop. I do not run Avast...I have tried the 'repair' option in folder properties in thunderbird. Nothing seems to help. I would appreciate any assistance you can give me. I have been using Thunderbird for....well it has been aloooong time and I have never had any issues with it previously. I am running WIn 11 Pro.

Using a new, clean install of Xubuntu 26.04, with thunderbird 140.10.2esr 64 bit, ubuntu snap build 1.0. In settings: play a sound when new message arrives, no sound is heard. When clicking "play" to test the sound, there is no sound. Also, if "use the following sound file" is checked, there is no sound when "play" is clicked. (I have tried various .wav and .mp3 files.) I have installed pipewire-alsa, but that didn't help. Any ideas?

Hi

When Thunderbird is started maximized it overlap taskbar if is set to hide and taskbar won't show until Thunderbird is minimized and maximized. Another way is to press the Win key two times. Then the hided taskbar can be shown/use. The same thing happens to Firefox. Only when is first started. Then if Firefox is minimized and maximized, press Win key two times, press F11 two times then the hided taskbar show/hide normal.

It is a setting that can be changed to start Thunderbird and Firefox in full screen and do not overlap hided taskbar?

In Firefox, to send an email, you click on the NEW EMAIL button in the tool bar and the email app appears. When you click on the TO button to add email addresses, the ADD RECIPIENT page appears and a list of people and their email addresses normally appear.

THERE IS NO LIST OF PEOPLE AND EMAIL ADDRESSES. They have been moved to the PEOPLE folder on the left side tool bar below the top MAIL icon. The email list in the PEOPLE folder is still in tact

My question is how do I correct this error which appears to have happened during an update.

One would think if you highlight the PEOPLE email list it could be moved back to the ADD RECIPIENT list but that does not appear to be possible.

What is the solution????????

I have connected a Google Workspace (Gmail) account to Thunderbird, let's call it scott.harper@myorg.org. I am able to send, receive, and reply from this account as expected.

In my Google Workspace configuration, I have an alias address forwarded to my account, let's call it info@myorg.org. I receive messages addressed to "info" just fine. But when I send or reply to messages addressed to "info", I'm running into a problem.

In the Account Setting I opened Manage Identities, and added info@myorg.org as an alternate identity. I then edited the Private Data for that identity so that the "Reply from this identity when delivery headers match" option is checked, and set to match info@myorg.org. See attached image.

When I reply to an incoming message, the From field appears to be (sort of) correct... it shows from info@myorg.org, but next to it (in italics) is the primary account identity, scott.harper@myorg.org. See the other attached image. This is also the case when I compose a new message and select the info identity.

In both cases, when the message arrives at the destination inbox, it is from scott.harper@myorg.org instead of "info".

I'm assuming I don't have the matching rule, or some other setting configured correctly. Would appreciate any other tips/ideas.

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.