Thunderbird Community Forum

System:

Win 11 Home (lastest updates, also my notebook's latest updates from the manufacturer) Thunderbird version 151.0

Okay, this is a multiple clusterf#@$.

I ended up needing to do a Win 11 Home "reset" keeping data. But I needed to back up some files first. But my back up drive was full. Usually, it's because of EaseUs ToDo not deleting files and just adding and adding to the system backup. But that wasn't the main issue: my Thunderbird profile (which I backup separately) was about 280 GIGABYTES in size! This is an extension of a prior problem for which nobody on here new how to solve and certainly nobody from Mozilla chimed in to help. So I did what I'd done before (but it'd never been like this) and delected a couple of THOUSAND seemingly redundant iterations of files from my profile, but NONE of the folders inside the profile.

Of course the Win11 reset deleted Thunderbird and all the profile information. No big problem, I've done this before...but it didn't work copying in all of the old files (from my backup drive) into a new profile and selecting that profile to boot. So, I went to the "Recycle Bin", undeleted all of those files back into my backed-up profile. But I'm only able to get Thunderbird to see all of my address book information. It is not finding my Thunderbird and email account settings nor my email messages (21 years worth). I 100% did NOT delete my email messages (c:\users\USERNAME\AppData\Roaming\Thunderbird\Profiles\PROFILENAME\Mail).

I can laboriously redo my email account information (five different accounts) and Thunderbird user settings, but I really DESPERATELY NEED HELP restoring my email messages.

PLEASE PLEASE HELP ME!

Recently I posted about this problem here: https://support.mozilla.org/en-US/questions/1580858 In sum, I was having problems both in downloading messages from the Spectrum server and also with sending messages. I've attached screenshots of the error messages.

Matt and David kindly posted some helpful responses. The problem then seemed to spontaneously solve itself and I breathed a sigh of relief. Then a few days later it re-appeared.

This time it's not quite as bad in that I'll get the error messages but then usually a few minutes later I can download the messages or send an email. But it's still a real problem.

I called Spectrum again and this time the rep was adamant that if I can still use the Spectrum webmail feature (and I can), then it's not a Spectrum issue.

Last time Matt asked about my antivirus. I use Windows Defender (and occasionally do a manual scan with Malwarebytes free version), so if I understood him right, I should be OK as far as antivirus interference.

Matt also suggested I set TB so that I download messages at startup and every 15 minutes. I was set to every 10 minutes so I changed it to 15.

Matt said for me to check the Activity Manager. I've attached a screenshot of what that showed a few minutes ago. But I should note that this was after an error message displayed but my email downloaded anyway.

Finally, Matt said I should check the Error Console (Control + Shift +J). I've attached a screenshot of that. He also said I should use the trash can to clear it, so I did. He then said to press Shift + F5 to attempt to get my messages. But on my laptop, F5 just dims the display so no dice on that. But I have a second laptop and F5 is "neutral" on that one so I tried it there. I didn't get any new error message.

However, one of the screwy things is that sometimes I get all my messages as normal, but only after the "Can't connect to the server" message displays. And that's what happened with my second laptop above.

I hope I've provided better info. this time. And I hope you gents can help me with this mess.

Thanks,

Andrew

Some good E-mails got moved into junk, so I right-clicked them and marked them as "not junk." Seconds later, they reappeared in the Junk folder.

Also, Thunderbird continues to classify messages from the same sender and even the same thread as junk. I read the doc here: https://support.mozilla.org/en-US/kb/thunderbird-and-junk-spam-messages#w_tell-thunderbird-what-is-not-junk

and the behavior is not consistent with what's described, or what anyone would expect.

Is this a known bug?

Thanks!

I use IMAP to grab my mail, if that's important.

In the last couple of days, my normal method of deleting messages from my Inbox, right-clicking on the message and selecting the trash can icon, has stopped working: the message disappears for a moment, then reappears. I can delete it by dragging it to the Trash folder in the folders pane on the left.

I've followed the instructions given in several postings here, including deleting the Trash and trash.msf files, doing that and then creating an empty txt file called Trash (no .txt), and using Repair Folder.

It just now occurred to me to disconnect from the Internet and try to delete a message. It worked fine?!

Thunderbird has stopped getting messages and 'get messages' doesn't work & I have to close & restart thunderbird to receive them. Nothing has changed with the email client itself.

I know messages have arrived by checking my providers phone app, but for Thunderbird to download them to my PC I now have to restart Thunderbird to get new messages

Since I was upgraded to Thunderbird 155.0 64 bit (Meadow) snap version on my Ubuntu version 24.04 all incoming messages are going to my spam folder. I copied my old Thunderbord profile to my snap thunderbird folder to retain folders, settings etc. and although everything else works, my incoming mail is still going directly to spam. I have unchecked the 'enable adaptive spam' check box and also 'trust junk mail headers' box. I have run repair on my inbox and also the spam folder. I checked my mail server and the mail is not marked as spam there... Getting tired of manually moving messages from spam to my inbox several times a day...... Help!

I have Thunderbird on laptop. I make changes to a contact in the address book and they seem to be made. When I close Thunderbird and restart it, all changes are lost and are back to what the contact information was before. This has to be fixed.

Problem with message are going to the Trash folder, not the Inbox with all local folders in place. After taken in profile the local folders off, the new downloading from message are working just fine to the Inbox . What is the problem Thanks for helping.

Using the system color theme, where my Windows 10 system is set to the dark color theme, I see Thunderbird 153+ Meadow showing popup menus with weird dark teal background. The standard Window menus (File, Edit, ..., Help) appear to use slightly different background, which still doesn't match my system color. Is there a setting I'm missing to have these menus shown with my system dark color theme (like current Fx, and previous Tb versions)?

I'm using my system color accent setting, but I'm seeing changing this Tb setting doesn't seem to affect the menus background.

I've also noticed I'm not seeing this on Windows 11 – the menus background is fine, although on Windows 11 I'm still noticing this teal "accent" appearing in certain elements of the popup menus, f.e. the color of menu item keyboard shortcuts.

For no apparent reason the calendar display has been filled with multiple columns of light and dark blue, side by side and extending top to bottom. This pattern starts in The August 31st column and continues up to and including September 7th. After that the display goes back to normal. Does anyone know why this has happened and how to fix it? Thank you.

Hello - I've been using Thunderbird email for several years now. No issues until recently, and I'm trying to determine if it is a server issue (Charter/Spectrum) or my Thunderbird email program (my husband is having the same issues on his computer). We've made no changes with settings; we did take advantage of a recent Thunderbird update that we downloaded about a month ago. Anyhow, we are having problems downloading/opening email, in addition to sending. Error messages include "Login to server mobile.charter.net with username cinmazz@charter.net failed", and "Server mobile.charter.net has disconnected. The server may have gone down or there may be a network problem." I contacted Spectrum about a week ago - they initially said it was a problem with their email app, and they were working on it. It began working properly for a day, then stopped. I contacted them again, and they then indicated no problem at their end, but they would look at the issue again and resolve by 9/7. It appears it might be a server issue but want to make sure it is not with my email program. Any suggestions for this not very tech savvy person will be helpful - thank you!

suddenly it's taking minutes to send an email - if it sends at all. Many times I get a 'failed' pop up window but when I click SEND again it will sometimes go through. Also Some of my emails aren't coming up - only a few of them. And they aren't un-bolding.

Good morning, Thunderbird was preventing me from accessing one of my accounts, and the support team for that account told me that changing the password would resolve the issue, as is the case for all users of that provider. Instead of changing the password, I deleted the POP server credentials line for that account. Since I received the error I mentioned in the header of my question the next time I tried to download messages, I simply changed the password for the SMTP server credentials, which now works. I asked Thunderbird to ask me for the password again to access the POP server, but even though the credentials line reappeared with the correct information, Thunderbird continues to give me the same error, while I can connect to the POP mailbox with other programs or via webmail. How can I resolve this issue? Thanks in advance for your help.

Hello there:

can anyone shed some light on how to resolve my issue here where........ having more than one hotmail account confuses the *Identities* for each mailbox,

in Thunderbird properties one goes into each accounts *Account settings* then to *Manage Identities* (at the bottom of the page)......there one sets the *default* identity for that email account. The problem I'm encountering is when there are more than a single hotmail account one cannot select more than just one identity to fill into that space. One sets a *default* identity & that single identity doesn't allow the other hotmail identities to function properly. I am getting a constant *Failed to connect to server @ outlook.office.365.com.* because two of the three the identity trying connect to the server are not the *default* identity. The *default* identity will connect to the server. I have 3 hotmail accounts loaded into Thunderbird anyone know of a solution to this?

thx very much

Hallo zusammen. Ich kann seid etwa 2 Wochen keine Nachrichten mehr in meinen Lokalen Ordner archivieren. Habe schon sehr viel ausprobiert: - Papierkorb geleert - Archiv komprimiert - Lokalen Ordner neu aufgebaut (.msf-Dateien entfernt) - komplett neues leeres Archiv an einem neuen Speicherort erstellt. Es kommt immer die selbe Meldung: Die Nachricht konnte nicht in den Ordner "Archiv/2026/2026-09 in Lokale Ordner" verschoben oder kopiert werden, da das Schreiben in den Ordner fehlgeschlagen ist. Um Speicherplatz frei zu machen, wählen Sie aus dem Menü "Datei" zuerst "Papierkorb leeren" und dann "Alle Ordner des Kontos komprimieren". Versuchen Sie es dann nochmals. Hat jemand eine Idee wie ich das beheben kann?

Hello,

Recently, the manual message check feature has stopped working, whether I use the “Get Messages” button or the menu.

When this feature was still working, I could see the progress of the message retrieval from the server in the status bar; now nothing happens (no display in the status bar and no messages are retrieved).

I should note that this isn’t a connection issue, since new messages are successfully retrieved during periodic checks or when Thunderbird starts up.

Has anyone else encountered this problem?

Thanks!

Running Thunderbird 140.14.0esr under Linux on a Chromebook. Have tried several times to move messages from Inbox to other folders and each time TB shuts down. When I restart it has an extra blank tab. I am able to move items using the Move To menu but that's tedious. It appears there was an update 18 August but the issue just started today. There have also been recent updates to Chrome but I've done all the shut downs/restarts called for.

De specificaties van mijn beide te laden e-mailadressen zijn al jaren niet gewijzigd. Toch probeert Thunderbird of er een server imap-new moet worden gezocht in het geval van hccnet mail. Vreemd is het dat Thunderbird af en toe ook zonder problemen alle e-mailberichten laadt. Het is dus soms goed, maar ook dikwijls fout. Na het opnieuw installeren van het programma Thunderbird treedt het probleem af en toe weer op.

After latest update Thunderbird cant send or receive emails. My settings are correct mail.charter.net port 993 outgoing mail.charter.net port 587.

Tells me I have a server error and is constantly asking for my password. HELP!!! I have been with Thunderbird since the beginning and have sent money to the cause, and now I need your help.

Thanks, Pam