I-Thunderbird Community Forum

I have tried various suggestions, but they all seem to send me to menu options that just do not exist.This is a really old problem and I can't understand why it has never been properly addressed.

Automatic spacing is pretty much universally not standard (It does not occur here.)

So how do I stop auto/double spacing when composing a message, please?

It seems that saving mails af text.files has been changed within the last month. Becouce the filename in the overwiev has been shortent and supplied with " ... - " - wher can I find a decription of that ?

I have a Win10 PC and a Win11 Notebook. Yesterday I could open my email accounts on both: PC and Notebook. But today suddenly I get the notification, the Thunderbird versions are different and I can not open my email account. Thunderbird versions on PC: 153.6.0esr and Notebook: 159. Why did Thunderbird on the PC not actualise automatically to a newer version, even under Help/About is written "Thunderbird is actualised"?? see attached screenshot.

I am using Thunderbird 158.0 (64-bit) on Windows 11 and cannot connect a newly created Outlook.com email account.

The account works correctly through Outlook.com webmail, but Thunderbird consistently reports:

"Authentication error — Unable to log in at server. Probably wrong configuration, username or password."

I have spent considerable time troubleshooting this problem and have already completed the following checks:

Confirmed that IMAP access is enabled in Outlook.com.

Verified incoming IMAP settings:

Server: outlook.office365.com

Port: 993

Security: SSL/TLS

Authentication: OAuth2

Verified outgoing SMTP settings:

Server: smtp-mail.outlook.com

Port: 587

Security: STARTTLS

Authentication: OAuth2

Confirmed both usernames are my full new Outlook.com email address.

Confirmed that Microsoft lists "Mozilla Thunderbird" as an authorised application, with permission to read, write and send email.

Tested network connectivity using Windows PowerShell. Test-NetConnection outlook.office365.com -Port 993 returned TcpTestSucceeded : True.

Created a completely new Thunderbird profile containing only this Outlook.com account. The same authentication error occurred.

Tested Thunderbird Troubleshoot Mode without success.

Confirmed cookies are enabled and Windows is not using a manually configured proxy.

Removed saved OAuth2 credentials and retried authentication, without success.

Tested both external-browser and internal-browser OAuth2 authentication using mailnews.oauth.useExternalBrowser. Neither worked, and I restored the original value of true.

During an earlier attempt, the Microsoft authentication process displayed the error 127.0.0.1 refused to connect.

Microsoft's authorised applications page confirms Thunderbird has the necessary permissions, but Thunderbird still cannot authenticate. I have not successfully been prompted to enter my new Outlook.com account password through Thunderbird.

My existing Hotmail account works in Thunderbird.

Could this be a known Thunderbird 158 OAuth2 problem affecting newly created Outlook.com accounts?

As the usual configuration, password, permissions and network checks have already been completed, I would appreciate advice on identifying the underlying authentication failure rather than repeating those steps.

Thank you for your assistance.

I have the latest version of thunderbird. This has just started in the past few weeks. I have 3 separate emails that thunderbird handles for me. The main one seems to work fine but slow. The other 2 it keeps asking me to input the password for them. I don't know why because it never asked before. I input the password and it does not accept it for either accounts. why is this happening and how can I fix it. These are roadunner accounts. I know they are "legacy" accounts. We are switching to another email service but need to access the current roadrunner ones for a period of time to make sue we get everything switched over.

Any help will be appreciated.

Thanks Bob

my email was previously provided by internode, which stopped. I transferred to the messenger co keeping my email address [redacted]@internode.on.net. However when I activate thunderbird I get a drop down box saying

mail.internode.on.net with username [redacted] failed

I used the option of "cancel" and things worked ok

Each time I open Thunderbird I get the same drop down etc

It is anoying

Does this make sense?

Thanks PIL

In thunderbird I'm getting the "Help Keep Thunderbird Alive" page, when I click the link it opens the same page (https://updates.thunderbird.net/en-US/thunderbird/140.0/nov25c/donate/?form=nov25&utm_content=cta_c&utm_source=in_app&utm_medium=desktop&utm_campaign=nov25_appeal) in the browser. The click to donate button there just opens the same page again and there's no option to donate. The page has a notification that "an extension might be blocking our donation platform" but disabling ublock on the page does not change anything.

Do you have a working donation page anywhere?

About a week or so ago my Win11 laptop stopped downloading my emails reliably. When I open Thunderbird it goes to the server and then to the server inbox and then closes down. This happens most of the time. Occasionally it randomly will download all of the emails accumulated that it had not downloaded before although I haven't done anything differently that I'm aware of. I use Network Solutions to host the email server. I called Network Solutions and they could see nothing wrong. The only thing I see that was not happening before is that I am getting an inordinate number of threat Mcafee popups that I can't seem to stop. I don't know if this has anything to do with it. This has been incredibly frustrating because I don't know what to do. Any help is more than appreciated! It says Thunderbird is up to date and I think the version is 153.6.0esr(64Bit)

I found a help topic on your site about adding my existing email account to the Local folder (unified) and the help topic says to go to message "advance tab" and choose "Inbox for a different account" . . I don't have that option.. Just show "Imap server directory" etc .. etc My other email accts show up in my 'Local Folders" - I just don't know where to find an option to add the one email acct to the 'Local Folders" like all my other accts. Thanks.

Sometimes when I go to my inbox it says "no new messages", when I have several hundred. and sometimes in the Send Folder too. I have to click on "All Mail" to see them. Does this happen to anyone else? What can I do to change this?

When trying to launch Thunderbird it gets stuck on "connecting to imap.comcast.net". App Version 102.0.1 GRE Version 102.0. Windows 10 on home laptop. I tried launching in safe mode and got the same thing

I had to upgrade my phone and in the process the passwords were lost. Starting over. Now I cannot adjust thunderbird to get anything. It is supposed to go to an area allowing password update but all I get is a blank screen. Any help is appreciated.

Thunderbird is useless. Every time I restart the computer all my emails and personal folders disappear and gradually start to re-appear hours later. I need a reliable email program that leaves my personal items on my computer.

My question can suffice. Once I installed Thunderbird release over the Thunderbird ESR, I have very slow or no access to messages sent before my account was converted to Graph. Confirm?

Over the past few days, the format for emailing seems to have changed on my PC, an error message keeps coming up saying: Error occurred connecting to imap.talktalk.net, I have tried to follow Google advice but it doesn't seem to have made any difference, I can still send and receive emails, but have to wait for all my old emails to load before I can do this, I'm a novice and a pensioner, please help Thank you