Thunderbird Community Forum

How do you create Message Filters (under the same account, of course) for separate folders with only some enabled? ... Rather like a Saved Search, but able to perform actions on the messages matching the filter. Thank You.

I currently using Windows 11.

In Windows 10, Thunderbird had an option to add in the upper left corner several words such as File, View,etc.

I would like to add that to my Thunderbird in Windows 11, but I can't find it. If it exists, could you tell me how to access it?

I just received the latest email update Freedom. I am unable to determine how I can access my new messages. On the old version, I would click File in the top left corner and access a dropdown menu. On that menu, I would click New Messages, which would open another box to the right which listed my email address. I would click on that address and my new messages would download. The new version does not have the File tab at the top. Clicking the cloud arrow down icon at the top left does nothing. How can I access my new messages? Any suggestions would be appreciated. I can access my messages on another browser but I have saved messages on Thunderbird that I would like to maintain access to.

I recently had a Surf fiber internet installed. Since then I am unable to Send outgoing emails. I still have my same Email address thru Spectrum. I have discussed this problem with Spectrum and they say the problem is with Thunderbird. When attempting to Send email, this pop-up displays:

"Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: impout009.msg.chrl.nc.charter.net cmsmtp 209.71.161.183 blocked. Please see https//www.spectrum.net/support/internet/understanding-email-error-codes for more information. AUP#Out-1130.

Spectrum referenced this AUP#Out-1130 code and said yes that is Thunderbird..

Since I can't contact you directly, How do I get help to get this corrected ??? Thank you..

Lyle Kleckner ldklecko64@charter.net

Hello,

My work uses Office 365 for email, but I much prefer Thunderbird to Outlook, so I connect via IMAP. I am finding that dozens of folders I have deleted reappear in the Thunderbird folder list as italicized, and then when trash is emptied they persist in Deleted Items italicized as well.

I also use Google Workspace in Thunderbird and don't see this issue. I have set up new profiles from scratch on multiple machines on Windows, macOS, and Linux. The problem always returns.

My sense is that the italics represent old subscriptions to folders that no longer exist. The IMAP subscriptions are enumerated somewhere that is inaccurate and/or corrupt so that unsubscribing or deleting is ineffective (i.e. Thunderbird lists the folders that O 365 says are subscribed to, but O 365 can't delete folders that don't exist).

I have been in this job 29 years, which is to say I have a lot of mail, and a lot of folders, and a lot of folders that have been deleted when names of departments changed over that time or people retired. I am willing to accept that Microsoft's IMAP breaks when you have more than X folders or Y messages.

I started off asking our O 365 admins "I don't know how to do this, but is there a JSON or XML or something that lists IMAP subscriptions that can be deleted so I can start fresh?" They didn't know, so now we have taken up the issue with Microsoft. They insist the folders are not in the mail store, which I don't dispute. They have also suggested it's a Thunderbird issue. This makes no sense, since how Thunderbird wouldn't know when I set up a new profile, for example, that I once had a folder called Vendors with a sub-folder called Polycom, unless O 365 listed it.

I am ready to save all the email and ask the O 365 admins to create a new account for me, assuming that I had too many folders and broke my mail store in way that nobody seems to know how to fix. Microsoft suggested I post here first.

Is anybody here familiar enough with O 365's IMAP implementation to know how to reset a mail store's IMAP subscriptions?

In thunderbird we had to reconfigure our in/out port selections due to what we were told was a tech bud that is known but not fixed yet. After we did that thunderbird automatically duplicated folders inbox, drafts, sent, junk, trash, archives, etc. We did not want that to happen. So all new inbox emails go directly to the "new" inbox. How do we get rid of the new folders and revert back to the older set of folders?? HELP!

Why am I getting this message when trying to send? Login to server smtpout.secureserver.net with username ivor@vernon.ca failed.

I have not received any emails in 26 hours. I have Windows 10 and did and update and since then I have not received any emails. Why? My laptop will not install Windows 11 (tried and it does not support it) I have to purchase new laptop by October. I have had this email since emails came about so its extremely important I get them. I have used Thunderbird forever Thanks Please let me know what I need to do since its time to pay bills. I appreciate it. THANK YOU

We've been running TB in our environment on terminal servers for the last 6-7 years. We have Group Policies configured to pre-configure several default settings (mail storage path, global calendars, mail server info (domain, type, ports etc) when the user first opens Thunderbird new. This has been working fine upto version 140. It no longer functions. We updated the ADMX/ADML files for the current release, with no change. When we go into look at the Group Policy settings, those options are o longer available.

It's been suggested that setting up a Policies.json file is what we need to do now, but those settings do not appear to be available. Is there any was to do what we were doing with the current version of TB, via Policies, or Group Policy that I'm missing?

Thanks in advance! Tim

Recent problem, real nasty, may just have to give up on Thunderbird, at least on the Windows 10 computer.

Click on folder name in folder list, all messages previously downloaded and viewable, when the message list appears, it instantly disappears and the message list pane displays "no message found" and it proceeds to download the entire message list all over again. For some folders with over a hundred thousand messages, this is unacceptable, obviously.

I use POP3 My laptop completely seized (I had no reaction to any key or mouse stroke) and after waiting for several hours (time sometimes cures it) and multiple Ctrl - Alt - Dels I had to force stop it by pushing on the power button until it shut down. (Over the years this has happened a few times but I've never lost anything from Thunderbird before) When I re-started Thunderbird it didn't recognise any of my email profiles. (I have 3 on the same thunderbird) I tried installing the profiles on another laptop with a fresh install of Thunderbird but while it was able to search for and find my e-mail address. It could not find any of my other folders. As of now I've only got the emails that were left in my inbox at the time of the crash and have lost or at least can't currently access any of the other folders. What can I do to recover the folders and the emails within them?

Many thanks in advance and apologies if Accessibility is not the correct topic. I couldn't see any other topic that fit and as I have no idea what Accessibility refers to I took a punt and tried that.

I recently upgraded Thunderbird to version 140.1.0, and I’ve noticed a change in how email notifications work. Before the upgrade, I would only receive alerts for new messages in my Inbox. Since the update, I’m now getting notifications for every incoming email—including those that go directly to the Junk/Spam folder.

It’s getting a bit overwhelming, and I’d really like to go back to only being notified about messages in my Inbox.

Is there a setting or filter I can adjust to stop receiving alerts for spam/junk emails?

Thanks so much for any guidance!

Here we go again! Inbox has Red Grid vertical/horizontal lines on businesses only after Thunderbird update. This same issue happened back in April this year after Thunderbird update and Toad gave me the fix. It didn't work this time. Don't understand why a new release causes this problem. I've tried trouble shooting mode and it does the same think. HELP

Dell Inspiration 366B Ram 8GB 64-bit operating system Windows 10 V 22H2 Thunderbird 32-bit 128.13.0 release 7/24/2025 & 140.1.0 release on 7/26/25

• • • Previous Issue***

Ray Blankenship 4/2/25, 10:45 AM more options The last couple days any emails from a business only have red horizontal/vertical grid lines. If it says to view or track package it won't let me, do it. If I drag that email over to another folder it acts normal and if I drag it back to my in box it has the red lines. I've checked the emails in the server, they are normal. Also, there is yellow bar at the bottom of the attached email. It acts like a message I'm trying to send because the to is prefilled out with my email address. Weird Dell Inspiration 366B Ram 8GB 64-bit operating system Windows 10 V 22H2 Thunderbird 32-bit 128.13.0 release 128.9.0 release 3/18/2025

Attached screenshots

I have this problem, too All Replies (1) Toad-Hall Toad-Hall Top 25 Contributor 4/5/25, 9:12 AM more options The 'Inbox' has somehow got itself set with a 'Drafts' flag. Please try this first and follow the instructions carefully.

In Folder Pane, select another folder - not Inbox

In 'Account Settings' Select 'Copies & Folders' for the problem account Scroll down to the 'Drafts and Templates' section Select 'Other' and choose 'Inbox for account' Then without exiting or doing anything, do this: Select 'Other' and select 'Drafts on account' Close 'Account Settings' tab Back in Folder Pane select 'Inbox'. Does it look correct ?

Helpful?

I OPENED MY EMAILS YESTERDAY AND WAS CONFRONTED WITH A LOGIN REQUEST FOR THE FIRST TIME IN YEARS. I LOGGED IN AND EVERYTHING WAS GONE INBOX, SEND, ALL FILES. WHERE CAN I FIND MY EMAILS? IT IS IMPORTANT BECAUSE SOME ARE BUSSINESS EMAILS. PLEASE HELP.

When I send an email it automatically puts a copy in my Sent folder so I can access it at a later time; but yesterday this wasn't happening. What do I do to get this to work again and can I retrieve the ones I lost? Appreciate your help. Linda

Hi! Yesterday, 2025-07-29, Thunderbird urged me to compact my several 10000 mails to save space. I consented to this and afterwords I cannot see mails older than a handful of days. I tried right-click on the inbox>Properties>Repair folder. That did not help. I cannot see old mails on my Samsung phone either and all folders on the webmail on one.com are empty except for the last handful of days. I really hope there is a solution to this! BRGDS with desperation bubbling under my skin. /// Bosse Rydbeck