Thunderbird Community Forum

I'm using thunderbird for gmail account, and I struggle to mark some events notification as completed when they are deleted using gmail interface. They keep on poping up but when I hit `Dismiss` it gives me this error: ``` Status Code: 2147500037, The request cannot be processed.

Server Replied with 400 If you're seeing this message after snoozing or dismissing a reminder and this is for a calendar you do not want to add or edit events for, you can mark this calendar as read-only to avoid such experience in future. To do so, get to the calendar properties by right-clicking on this calendar in the list in the calendar or task view. ```

I don't want to make my calendar read-only because I'm still gonna use it but I can't remove these annoying pop-ups because of the error. Please help what can I do

Good morning,

I cannot delete drafts in my draft folder. I have sent the emails, but they are still in the drafts folder.

Does anyone have a solution to this problem? I now have 22 emails in my drafts folder. When I delete them, they immediately re-appear.

TIA, Leslie

After new installation of Windows 11 and Thunderbird at 15.Jan 2025 I had to restore my local Folders to get accessions to prior e-mails. With the function Import it wasn't be possible to import the real data. With konto-parameter I could set the file to the prior profiles, but I could only set it to one of multiple subfolders, to get access to the e-mail data. My solution (but not really a good solution): to copy all data of the prior profile to the profile of the new installation (without a function of Thunderbird - manually by the simple Explorer). You need all data inclusive all folders and files in the \Mail\Local Folders\ with all .sbg Files (= SubFolders with SubSubfolders), .msf (name of Subfolders with data) and the data files. (in Explorer all System files and System folders must be visible). I had then problems to reorginize the subfolders then in Thunderbird and to delete data ---> with manually reorganizing, renaming and deleting unnessary data by the simple Explorer this was easier and faster.

The Import Function should be improved - no reply necessary

With the istallation in Nov 2024 (when I had the identical problem) I didn't recognized this problem

Thanks

I have been using the old Microsoft Calendar app on my laptop to manage my Google calendar which is also shared on my android phone, but the MS Calendar app no longer works after the latest Microsoft update. I decided to switch to using the calendar in Thunderbird since I already use it for email. But I get an error if I try to import a single calendar event from a .ics file.

I successfully shared my entire Google calendar read/write in Thunderbird and I can create new calendar events, so I know that it is writeable. But when I attempt to import a .ics file, I get an error saying "Import failed unexpectedly. more information may be available in the Error Console." I don't know how to view the Error Console, so I'm stuck. I can see that Thunderbird opens the .ics file and previews the contents just fine. But the last step of the import process fails.

Why won't Thunderbird import the calendar invite in a .ics file into the calendar from my Google account?

Hello, I would like to disable an IMAP account, i.e. put the account offline. I have seen the following suggestion : going into server parameters and unchecking the 3 boxes : check emails on startup, check emails every x minutes, enable notifications when new emails arrive. But this doesn't work when I click on "check new emails". I need this because the connection of this account currently doesn't work and a connection window pops up each time I check for new emails, which I want to avoid until the problem is resolved, without having to delete the account from Thunderbird. In many mail clients there is an option to disable an account, but I didn't manage to find it in Thunderbird. How to do this ?

Thunderbird, quite suddenly, stopped getting my email; Both on my account and my wife's account at the same ISP. I spent more than two hours on the phone with the ISPs help line trying to resolve this issue. They also use Thunderbird at their help desk, and the agent I talked to was familiar with your program. She (the agent) was not able to replicate the issue on their system. We then tried to set up a NEW email account. I carefully entered all the info needed for a new account, following instructions from the agent, then hit the 'Test' button. I got the following message onscreen: "THUNDERBIRD FAILED TO FIND SETTINGS FOR YOUR EMAIL ACCOUNT" The answer to the original issue suddenly became very clear - Thunderbird cannot, or refuses to, connect with the email server, therefore NO EMAIL. We tried everything in her toolkit to resolve the problem to no avail. We finally tried UNINSTALLING Thunderbird (and the Maintaince program). Once Uninstalled, I used the Registry Tool on CCleaner to remove any entries in the registry referring to Thunderbird (there were several), then restarted my computer. I then downloaded and installed a totally NEW Thunderbird program. When I ran the Thunderbird again, I found all my account(s) info was still present, and Thunderbird was still unable to find the server. I'm at my wits end trying to resolve this issue, and REALLY HATE to go back to Microsoft OUTLOOK to get my email. Anybody got any ideas??? Any help would be greatly appreciated. (Signed) Proteus

I have five email accounts connected to my thunderbird profile, two outlook, two gmail and one more obscure, all of them had correctly set-up outgoing servers and all had an identical error message of 'Sending of the message failed' with no further details. Every account can receive emails perfectly fine and only sending of emails (and saving drafts as the same message appears if I were to try and save a draft) appears to have been affected.

I opened the browser console in an attempt to diagnose an issue, however I am simply not knowledgeable enough to understand what its telling me.

I suspect a component was lost when I resized the partition, however a reinstall of thunderbird and a wipe of my profiles has not changed the issue and as such I am lost. Could someone more knowledgable than I please point me in the right direction before I reinstall ubuntu trying to fix this.

Many thanks Hawk.

My husband's emails are arriving at his correspondent as though they have come from my email address. This means that his correspondents keep replying to me and not to him. So far I have not been able to see anything wrong with our settings. Any ideas as how to correct this, please?

Did a reinstall of win11, which wiped out my old files-- re-downloaded latest Tbird, but can't get it to sync up and download my archived emails-- What am I doing wrong, and how do I get it to work? Sledgehammer is looking better and better.......

Hi, I am moving from Outlook and struggling with Thunderbird email accounts I wish to setup 5 mail accounts, four of which relate to different people or departments and on that collects incoming email from mailboxes that are re-directed. I find that I can set up the outgoing smtp and the incoming smtp but I am not give any choice for sending mail. Also whatever I do the first account I set up always appears as the only account visible in the folders pane. If there is a definitive explanation of what to do to configure email in Thunderbird it would be most helpful?

Regards Greg

Hi All, When I use Thunderbird's calendar to schedule an event it always defaults to the next available time. For example if I go into the calendar and pick a Tuesday 1pm-2pm slot on Monday at 8:30 the event pops up defaulted to Tuesday 9:00-10:00. Is this a setting I can change? To get it to pop up with an event Tues. 1-2. Thanks, Lisa

Alwasy had Inbox drafts sent deleted

 subfolder1
 subfolder2

etc etc.

re-added my account after moving to MS 365 from another iMap account

now have inbox then all my folders then drafts etc.

Is there a way to revert back?

Also another query, ref subscribed, in all my years never noticed this setting before (never had ny hidden) but I used import/export tool to backup from old server to import for the new one (may also be relative to my problem above) The folders were all hidden on import.

Can you advise if subscribed just hides these folders or actually prevents syncing to the server. I can test but would like to understand the purpose of this feature?

Thanks I/A

Thunderbird started crashing randomly about 2 days ago, however, after restart, it would remain running if I switched to troubleshooting mode. I removed an add-on from Bitdefender in troubleshooting mode.

Today I can't even open Thunderbird-- it crashes on launch. It won't launch even if I hit the Shift key or if I turn off antivirus.

Here is the most recent submitted crash report:

Crash ID: ⁨bp-b52cd345-636f-445a-ab4c-764ca0250114⁩

Can someone please give me guidance on what is going on and how to fix it?

Thank you.

The problem with standard email storage methods is that they don't scale well. Mbox, the default in Thunderbird, creates large files, and if you backup changed files, every backup requires recopying a multi-gigabyte file, because it has changed when even one message was added or deleted. Maildir, the alternative, puts each message in a separate file. But file systems have a lot of overhead and their own limits. When you have hundreds of thousands of messages, especially on a PC, that clutters the computer's file system, and between the file cluster size and directory overhead, it wastes a lot of space and slows down other operations. Two bad options. And let's not be too snarky about what that company from Redmond does in its awful mail system, with a giant proprietary mail database file that sometimes gets corrupted...

It is obviously a lot to ask to create a new mail file format that scales better. It would not be standard and could break some things anyway, though in the long run it might be a good idea. But I have an idea that might work for Thunderbird. As it stands now, it is possible to create archive files by month or year. Then new mail doesn't require those to be re-copied. WHAT IF a "virtual mailbox" could be created that, instead of consisting of one Mbox file or one maildir directory, consisted of a set of Mbox files treated by the UI as one? Quick Filter would filter them all as one, unlike with archives, and you could scroll through them all and sort them and see threads, but they'd be stored as monthly or annual (or whatever) files, the way archives are. Sending and receiving would be unchanged, using the current folders, but periodically the folder could have the oldest ones moved out and still made part of a virtual folder.

There are some modest virtual folder capabilities now, but I don't see how to do this. Does it seem like a possibility with what's there, or a modest enhancement, or is that the kind of thing that would be a huge effort?

Since yesterday Thunderbird keeps crasing. I don't even have time to go see if an update was added. It crashes within a few seconds all the time. Any ways to fix it?

Hello, Using a MacBook M1, MacOS: Sequoia 15.2.

New Thunderbird version (Version 128.6.0esr 64 bit) automatically downloaded this sunday 12 th. In the write email screen I still can input "To" and "Subject", but I cannot write any text ! Send button now inactive About Thunderbird (after clicking "Thunderbird top left) now inactive "Settings" now inactive Contact list on left side is empty (as shown in capture 1)

AlsoThunderbird now opens up in this window (capture 2), whereas before it would open (correctly) with the "in messages" Thanks for your help ! Dikran

I deleted all of the .msf files from my profile using a tool called "thunderfix." To the best of my knowledge, all that it does is remove the msf files from the profile folder. It's always worked well and cleaned up a slow opening inbox for many years.

However, after running thunderfix yesterday and restarting Thunderbird (Win 11, version 128.6.0esr (64-bit)), I could hear the incoming message chime, but the messages never appeared.

The screen was blank on first open, with no messages appearing, existing or new incoming ones, but the existing ones appeared after I moved to another folder and returned to the inbox. The new messages never appeared. I know they were sent and received as I keep a backup of all of my incoming emails on a separate gmail account.

Once the inbox came back with the existing messages, new incoming messages appeared as they usually do.

Does anyone know what might have happened and if the 10-15 missing messages in Thunderbird can be recovered without resorting to the the gmail backup?

Where did they go after I heard the incoming chime?

Also, is Thunderfix no longer a reliable tool?