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Hi have various hotmail and live accounts already active in Thunderbird. Tonight, I tried to add a new hotmail account for my mom. The hotmail account is active and working well using the microsoft web browser.

I tried to add the new email to Thunderbird and in the first stage a green box with a checkmark appears " saying Configuration found in mozilla database.

IMAP box says: Incoming Imap SSL/TLS outlook.office365.com

Outgoing SMTP STARTTLS smtp-mail.outlook.com

username xxxxx.hotmail.com

I press done, and a yellow box appears saying "Unable to log in at server. Probably wrong configuration, username or password. Now I did notice on my other hotmail accounts in Thunderbird, the outgoing says: smtp.office365.com and NOT smtp-mail.outlook.com I tried making the new account exactly like my other 5 live/hotmail accounts. Outgoing> smtp.office365.com. And still no go. The new email addy won't connect.

So I thought, maybe it's a bad email or the way I created it. So I created a NEW hotmail email address and same thing. Followed all the steps and same yellow non connect error box appears. The setup in the picture is exactly like my other accounts - and they all work fine. Has anyone tried to add a hotmail addy recently? I never had these issues when I set up the other addresses 4 or 5 years ago. Thanks guys

I have had to replace my laptop and am trying to set up my new one with an existing outlook account on the new device.

It is a Windows 11 device.

I have used the exact server settings etc from my old lap top for the outlook account but get a variety of error messages.

I have explored the use of the Account Hub and also switched that off/on. Same situation.

I attach five screen captured images so far. The first is the version of TB. The second is the window that appears when the account tries to connect and thirdly the small pop up that appears bottom right hand corner of laptop. The remaining two show the server settings and that they passed the connection test.

Other email accounts (gmail & yahoo) have both been set up on the new device and work well.

The account worked on the old laptop and continues to do so. I have set up the outlook account with, to the best of my knowledge, the same settings. The old lap top was a windows 10 device. The new laptop does not have a third party antivirus on it.

I am baffled as to what is happening and what I should do next. Any advice would be great.

Hello! Over the last few years, I was using Owl Exchange to access my school and work email accounts which couldn't be added regularly.

Now that I've upgraded, I'm not able to add these accounts using the EWS method. I run into all kinds of errors, or Thunderbird is unable to detect the kind of account.

Yet, my existing IMAP accounts work great with Owl. How can I easily convert these to work with Thunderbird EWS natively?

New email account successfully added on a pc and an android phone. However, Thunderbird fails to add the same account on a different pc. All details are correct. Please help

I apologize for the subject line, but there is no better way to describe the problem....

I've been using Thunderbird for a few months now and it has mostly worked well. Then this afternoon I was reading my mail in the Unified Inbox and I noticed something very odd. I had a number of emails showing in the header list with the same "From" and various subject lines. On the face of it, that wouldn't describe any weird behavior except that I noticed the subject lines absolutely didn't match the "From" information.

As I would go to read these emails, the email itself would be correct in the preview pane -- including showing the correct sender name and email -- but the "From" information in the header list pane would still be wrong.

I'm sorry that I can't post a screenshot to make this more clear because there is just too much personal information on screen. But these emails are from several different senders, received by several different email accounts. Everything is correct except that the "From" shown in the header pane is wrong. This is very obvious to me because I normally run entirely in the Unified Inbox with the emails sorted by the "From" information

One example is an email that is actually from "U.S. Department of Veterans Affairs <do-not-reply@notifications.va.gov>" which Thunderbird displays correctly in the preview pane (where I usually read my emails) and if I open the email itself, but the header pane says this email is From "Prepper-co <joshua@prepper-co.com>"

Another example is an email that is actually from "USPS Customer Support <uspscustomersupport@usps.gov>" but the header pane says it is from "Rainier Arms

These two examples were received in different email accounts that aren't even on the same server. I have other emails from these same senders that are shown correctly

I found this problem while using 150.0 (64-bit), which said 150.0.1 was available, so I restarted Thunderbird and it updated to 150.0.1 (64-bit) but the problem is the same.

I've tried setting up Thunderbird archiving according to the documentation to save archived messages locally, and in the same hierarchy they had when I archived them. That is, if I have:

INBOX

   Box1
   Box2

... etc. then archiving would create a parallel structure in Local Folders

However, this isn't working.

I select "Keep message archives in Other (Archives on Local Folders).

For "Archive Options" I select "A single folder", "Keep existing folder structure of archived messages" and "Recreate inbox folder".

However, when I archive something, Thunderbird just creates a folder "2026" (this year) and puts the message in there.

Why are my settings NOT working?

- Tim

I am using Thunderbird on a Macbook Pro 13-inch mid-2012, in a POP3 account

Thunderbird 140.10 is generally running fine, except that some sub-folders are not visible in my Thunderbird email tool view. I have a hierarchical

I have tried repairing the parent folders, but that had no effect.

The corresponding .sbd files are clearly visible in ~/<user>/Library>/<profile>/Mail/Local Folders/pop-server.<account> and being backed up in Time Machine backups.

Curiously, there is a much-truncated replica of some .sbd folders in Local Folders named /<folder-name>.sbd, all dated in 2013, yet the folder was created in 2017. I presume these refer to an update of Thunderbird that left some trash, and of no consequence. These are parallel to Archives and Archives.msf files.

Please advise on how to disambiguate this structure and recover views of existing mail folders not being displayed.

One of my local folders of email disappeared: it is no longer displayed under Local Folders. A few days ago while using my mouse to move a message into one of the local folders, something happened, a peculiar message briefly displayed. At the time I did <Ctrl>-Z to undo whatever happened, but I didn't see any changes. That must be when the folder disappeared, but I'm not sure.

My other folders are still in place. I can't find the missing folder inside any of the other folders (junk, deleted, archive, etc.). Yet when I search for email in one of the missing folders, the messages are found. When I go into Troubleshooting Information, there is no Profile Directory listed, and when I click on the Open Directory button, nothing happens. (I've gone through the process of transferring Thunderbird accounts to new computers in the past.) I'm using Pop!_OS 22.04 Linux and Thunderbird 140.10.0esr. I backup my laptop using Back In Time. Any idea how can I fix this?

I have been using Thunderbird for my email X@plethora.net since 2004. My son set it up. Now I have two additional emails, @mail. com, and I desperately need to be able to read them somewhere with a usable interface. One I had been reading in Apple's Mail app (also for many years, but Google locked me out of both of them on April 10. I have the emails back,, and it has screwed up everything else. I don't want to be stuck forever with https://mail.google.com/mail/u/0/#inbox and https://mail.google.com/mail/u/1/?pli=1#inbox.

I have a MacBook, from 2021 or 22, which needs to be updated

X@plethora.net has one open window, Thunderbird's inbox, and several tabs. Can I open a separate window for Y@gmail.com? I don't think I need to transfer the existing messages.

My iPhone is X, I have an Apple keychain, with a passkey. I wouldn't mind phone calls or texts, but if I'm on a call, I don't know how to switch away (to receive a text) and then get back to the call.

(PII redacted by moderator)

My inbox Sub Folders have disappeared on one computer only (Windows 11) And, only one email account. Apparently the emails they contained are still there but not visible.

Dragging and dropping multiple local folders has worked for quite some time now. But recently (since last week?) I can no longer do that. I am forced to drag single folders. My workflow requires the ability to drag multiple folders often during the day so this is a great inconvenience.

I am currently using V150.0 64 bit on a desktop running Windows 11.

As of April 4 midnight my yahoo account in Thunderbird just stopped receiving incoming pop messages nor can I send. According to Yahoo, it showed that Thunderbird had access. Thunderbird showed how many new messages to download, but then does nothing but hang and time out. I have removed all stored yahoo passwords; I have removed yahoo permissions in yahoo in order to start over. I get the normal log in screens to add permission with oauth2, signed into yahoo account in yahoo and it shows thunderbird has access, yet Thunderbird still can NOT access yahoo mail (download pop or send smpt). YES MY SETTINGS are correct. They haven;t change since before April 4 midnight. I need this account active again. HELP!!! email to X@hotmail.com with Yahoo in the subject line: According to THunderbird, I have version 140.9 esr. when I press check for updates it says I'm up to date. Although the yahoo help page says as of March 2026 version 148. confused. Bill

(PII redacted by moderator)

When bulk selecting and deleting, sometime columns don't match rows. eg: subject doesn't match correspondents (sometime additional random contacts are added to correct correspondant) and message panel may not match highlighted "subject" email.

Been using for years...love the product. But this is a new quirk. I have noticed, when I have done hundreds of bulk deletions, deleted messages will be added back in inbox??

Thanks, Dave Millert, X@aol.com.

(PII redacted by moderator)

I am unable to add my Outlook email account to Thunderbird Desktop. I keep getting an authentication error when entering the Outlook password which I know is correct. Adding my Gmail account was no problem.

When bulk selecting and deleting, sometime columns don't match rows. eg: subject doesn't match correspondents (sometime additional random contacts are added to correct correspondant) and message panel may not match highlighted "subject" email.

Been using for years...love the product. But this is a new quirk. I have noticed, when I have done hundreds of bulk deletions, deleted messages will be added back in inbox??

Thanks, dmillert@aol.com

(PII redacted by moderator)

problem account : xxx@yahoo.co.jp please answer to yyy@gmail.com from pop --> imap change after go on not receive message, but 'sent massage folder' on web messenger are aligned Thunderbird 'sent mail' . account not error at logon.