Thunderbird コミュニティフォーラム

As of July 1, I no longer have access to my school account. It was a gmail account that ended in .edu. I have new email account that end in gmail.com When I open Thunderbird it asks me to sign into the deleted account which I no longer have access to. I can receive email in my new accounts but am not able to send email from them. I need to disconnect completely from my old school account but do not know how to do this. Thank you.

1. il m'est demandé de me connecter à mon adresse [[mail|https://accounts.google.com/v3/signin/identifier?opparams=%253F&dsh=S453932297%3A1784021273638275&client_id=406964657835-aq8lmia8j95dhl1a2bvharmfk3t1hgqj.apps.googleusercontent.com&login_hint=michel.prevost32%40gmail.com&o2v=1&redirect_uri=http%3A%2F%2Flocalhost&response_type=code&scope=https%3A%2F%2Fmail.google.com%2F&service=lso&flowName=GeneralOAuthLite&continue=https%3A%2F%2Faccounts.google.com%2Fsignin%2Foauth%2Flegacy%2Fconsent%3Fauthuser%3Dunknown%26part%3DAJi8hANVRLcqE03NldyjSOQKD_ICIw-S2SCBh-6vI4e-27LKaMkwOFsE4ZsbM4KuR9h1phP_R5MTBFNrHmlexCie4O3pYyxa0C1iaZ7KlW7iDhD81uqkpGXCUp40Sa5ojDAHbs4R4qubHhWyiKnYjYFSEln6Fb-xUdqsiv0Ub8egIAQ6zcw7b3UoDeUOROPOnCsX-UWBXV04QuFZW_OrhIewatCn_QzrrLrRjHpNxS0nYNrK-MsMIMUd2F_NMQU0pAuEMK4YqwyWb3kzPS8hS9vbwFDb6X89fob2CCD11Ao3a76Gnc5qtR4bNek6uVX10vZwJtztrMDawovZONiyF9_kG8EeHcBtXhm1snMpm74e-AYhgEwqF0ZmrAHo5gVQa3wwN63tbrE8evUJxTpbofiAh598-FbaSZg1xiww-wzqjeY3UmcAPXkOW2AV5oi8m1I3Aoa_ApsL%26flowName%3DGeneralOAuthFlow%26as%3DS453932297%253A1784021273638275%26client_id%3D406964657835-aq8lmia8j95dhl1a2bvharmfk3t1hgqj.apps.googleusercontent.com%23&app_domain=http%3A%2F%2Flocalhost&rart=ANgoxcfiR05M5QkoVyIE0hpFkMCItNQ0h5RdqQk9Hem3ZYYJ85-l3JFKwD3nFA3uiM3Ybf26hJx1Dk4FfURpF4jxkODkEEefdunI4EhgFoES9OCpHsbQS20]] google: lorsque je coche "suivant" j'ai erreur 400

que faire sans détruire mes mails? salutations respectueuses

It's very odd. Normally moving an email, say from the Inbox to the relevant year's archive, takes "no time at all".

Which is true for all the mailboxes shown on the attached screenshot, EXCEPT for the four at the bottom. Moving even one message from Inbox to Yiddish can take ten seconds or longer (with the dreaded "Not Responding" occasionally). Moving something in the opposite direction is also screwy, only from those four.

I had thought that it was because they're rather large. This first started when there were just Yiddish and MSW, and I split off most of the earlier years into the archives shown. To no avail.

It's only an annoyance, but I'm puzzled about how such a thing could happen.

Also very slow tagging or untagging a message just in those mailboxes.

Martin Belonje

Jul 15, 2026, 13:24 CST

Goodday,

Unfortunately I could not add a screenshot to this message. Under my account belonje24@zonnet.nl there is a "Postvak IN". This means inbox. In this inbox should new mails appear. Right now there comes nothing in it. However, two lines below there is suddenly another "Postvak IN 22". New emails appear here now. I already tried to drag this inbox into the inbox under belonje24@zonnet.nl but that doesn't work.

New emails now appear with a yellow bar: The text in the yellow bar at the bottom says: (I translated)

No unique identity was found matching the sender address. The message will be sent using the sender field and the settings of the identity Martin Belonje <belonje24@zonnet.nl>.

To my opinion this has to do with the fact that the inbox has moved from its original position.

I hope you can help me out.

I have just re-started my problem when this system crashes again. For 3 weeks I have sent reports of sites being crashed. The has not been any changes. It happens when on web site and also when using E-mail. HELP!

I've had issues with google and microsoft, changed passwords, now I get credentials messages when Bird tries to get email. I know its because of my password changes but can't fix it. (I edited this because I said authentification before instead of credentials)

With a new Thunderbird installation on Windows 10 Pro, I attempted to import my profile data from a Postbox on another machine. The process failed, citing two errors (see attached screen shot), EmptyDatabase Error: "blocklists/addons-bloomfilters" has not been synced yet Uncaught NS_ERROR_FILE_NO_DEVICE_SPACE: Component returned failure code: 0X805200010

The profile being imported is pretty large -- around 20Gb, so I wonder whether I have surpassed some capacity limit. I was doing this via the Import Tool on the Tools menu.

Porting my legacy mail folders is crucial. Any help would be greatly appreciated.

Why is thunderbird constantly coming up with an authentification failure while trying to connect to outlook.office365.com every time i try to access my hotmail emails? this is becoming painful last week zero access to hotmail then worked for a few days now nothing again.

My old email address was [redacted] @USIWireless.com. I got a new email address: [redacted] @icloud.com I am trying to set up my new email address with Thunderbird and when I do the steps I get an error message. "Unable to log in at server probably wrong configuration, user name or password. I am using my new email address with its password. Not sure what to do next. I would really like to get my new email on Thunderbird. Any assistance would be much appreciated. Thank you for any help! Anthony Berka

In previous versions of Firefox it was easy to create a filter. Not anymore. I want to allow trusted addresses to come into my Inbox without going into Spam. Even when I follow (Google's AI) instructions exactly, all my medical information goes to Spam AND the trusted filter I created seems to have blocked dozens of browser choices in DIY sites, among others.

Hello.I just want to let you know,that somehow the client what i uzsdeing is forget to make undread massages to read when i takea look at them.When i double clivck on them they open a diffferent page and then they get read status.What could cause this?

I have been using Thunderbird for about 15 years. I use POP3 access to download a copy of each email into Thunderbird, and then use filters to move emails from each of multiple accounts into a subfolder under local folders. I have one account which is no longer active, but all the emails were still stored in the subfolder. Today, I went to look at the emails in this account, which hasn't been looked at for at least 5 years. When I clicked the subfolder to see the emails, I got a popup window which looked like an OAUTH access window, not the list of my stored emails. I'm afraid I didn't pay much attention to the popup window, I just closed it so I could try again. When I closed the window, the subfolder disappeared. I have no idea how to get it back, since I still want to keep those emails. Does anyone know how to get it back?

Over the last week or so, I have received an enormous amount of scam, but no matter how many times I "train" the filter, it doesn't work.

I have just received another 3 from this site: mid:02guhjkj6-ABMcSHN6Or-JiC-000000@eu-central-1.amazonses.com, which claim to be from Madasafish Security>security@qi9adgongzenElptrum.de

I have tried on several occasions to follow the manual instructions how to deal with the spam, but I find it so log-winded that my non-techie brain, which is not wired for these kind of things, gets tired and I give up. If anyone has a more intuitive approach how to deal with this, I would be very appreciative. I have marked sites multiple times as spam, but the spam control ignores me!

Error code: PR_CONNECT_RESET_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Afterward no mail is being received from any of the providers, everything is stopped at last time I connected before the error, i.e. 7/9/2026

> I have 6 email accounts I manage in my Thunderbird. > Normally I do not delay sending emails, so I have not had a reason to use the Unsent Messages Folder. > I recently installed Thunderbird's Mail Merge Add-On to send mass individual emails to classmates for a school reunion. Doing it this way will allow me to track individual bad emails. I have a total of 3621 emails. > I created a new Gmail Account for this purpose. > There is a concern to not send too many emails out at once to avoid getting flagged and suspended by Gmail as a Spam Account. (Limits of 50 to 500 per 24 hr period have been suggested to avoid this), so scheduling bursts of emails over a period of time is necessary. > The Mail Merge Add-On has 3 output choices, Save as Drafts, Send Later, Send Now. (The instructions warn against using Send Now) > I tried the Save as Drafts function and it performed as promised, creating 3621 individual customized emails in my Account's Draft folder. This, however, makes it so you have to send each email individually. > When I tried the Send Later function, it appeared to work, but a Local Folders > Unsent Messages folder never appeared. I searched all my other email accounts and finally found it in the one Old Defunct email account list that I never use anymore. It does appear to have created all 3621 emails. > I tried to Drag & Drop it into the Local Folders stack, but received an error message that a folder of that name already exists there, even though it does not appear in the list of folders. > I tried repairing folders, compressing folders and was not able to move it or even create a new one of that name and copy the contents. > I would like advice on how to proceed to complete moving/copying the Unsent Messages folder to its proper location in the Local Folders stack. Thank you! greg

Hi,

I use AltSnap and its snap feature a lot because I have multiple 40" TVs as monitors.

That means I often deal with thunderbird floating windows rather than maximized, and I often resize it.

And I notice that my message list is always getting too small !

I realized this is because when you resize the thunderbird window vertically, the preview pane stays a constant size, but it is the message list that resizes.

Over time the message list gets squished out and not even one message is visible.

I think if the message list remained of a constant size during vertical resize and it was the preview pane that got resized along with the window, it would prevent that and the message list would always be, the size that you last set it.

Hello,

I *can* resize the folder pane in the first/main folder tab, but, I *can not* resize the folder pane in subsequent folder tabs I create using "open in new tab". 

This occurs using any layout (Classic, wide, vertical view). In the first tab I get the double-headed arrow to resize the folder pane, but in subsequent folder tabs I don't get it.

When I open a  folder in a new tab, the folder pane is the same width as the parent tab, but, I can't adjust it.

I'm using Thunderbird 152.0.1, but, this has been going on for a long time from what I can remember.

I've tried a number of suggested things to fix this: - Deleted xulstore.json - Cleared Startup Cache. - restarted in Troubleshoot mode (and I get the same issue there). - Switched layout views - Toggled folder modes - Adjusted interface density. - Toggled hardware acceleration. - Deleted the UI Cache Folder (shader-cache)

Nothing worked.

Please help me with this!

Thank you, Jim