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Since upgrading to a recent version of Thunderbird ESR (a few weeks ago), I regularly receive notifications of error for a Yahoo mail account. I do not receive these notifications for other mail accounts. The notifications are as follows:

• The current operation on 'inbox' did not succeed. The mail server for account example@yahoo.com responded: p.
• The current operation on 'inbox' did not succeed. The mail server for account example@yahoo.com responded: UID FETCH completed.

I have deleted and recreated the account to no avail. Searches for similar issues has revealed nothing of use.

Any idea what is going on?

Version: 153.5.1esr (64-bit) OS: Windows 10 Language: English Proxy: None Email connection type: IMAP Authentication: OAuth2 Connection security: SSL/TLS Encryption: None

Thunderbird 158.0.1 (64 bit) Thunderbird codename Meadow, Mozilla Thunderbird Snap for Ubuntu-snap-build - 1.0

Running on Ubuntu Linux 24.04

Problem downloading emails from Yahoo

For years there has been no problem, but about 2 weeks ago downloads stopped. Pane at bottom of Thunderbird says downloading message 1 of 292, but is is stuck at 1 and nothing downloads.

Today something different is happening, it downloads the first 80 messages then returns again and downloads same messages again, then repeats. I now have 17 duplicates of these same 80 emails just in the time to write this and it is still downloading the same 80 over and over again.

I have searched internet for solutions. I have done the following:

Updated to Oauth2 through Yahoo website. Thunderbird shows a saved login password oauth://login.yahoo.com, plus my correct email address, plus an OAuth2 password

Checked all server settings. All correct, e.g, pop.mail.yahoo.com Port 995 SSL/TLS security, and OAuth2 authentication method

From server settings page I tested connection to server which came back successfully

Same as above for outgoing server.

I have ample disk space on my computer and ample data capability on Yahoo account.

Confirmed not in offline mode. Confirmed cookies and javascript enabled.

BTW, I can access all my mail on Yahoo’s web page, but that is inconvenient. I really prefer access through Thunderbird.

I have deleted global-messages-db.sqlite and Thunderbird reestablished it. Did the same for popstate.dat, and inbox.msf

I even uninstalled Thunderbird and reinstalled it but no improvement in the problem.

I am out of options now. What to do? Thanks so much.

I can't receive or send emails for the address [redacted] @orange.fr with thunderbird. I get the message: Login to server impa.orange.fr failed - retry - enter new password - cancel

If I use Ctrl+E to resend an email it loses all images (both in signature and any attached).

Thunderbird: 158.0.1 (64-bit)

Was working fine before. Stopped recently. If I send a new email, or forward an email, all works fine. Only if I Ctrl+E

Thank you kindly

Dear Support Team / Mail Administrator, I am requesting urgent assistance to force-stop an email forwarding loop and mitigate server load caused by a misconfigured filter in Thunderbird. • Affected Account: [redacted]@leadit.co.kr

[What Happened] I accidentally set up and manually executed ("Run Now") the following two rules under the Tools > Message Filters menu in Thunderbird: • Rule 1: Forward all incoming emails to an external email address. • Rule 2: Copy/Move all outgoing emails back to my Inbox.

[Current Issue & Loop Mechanism] Although I have already disabled these filters in Thunderbird, a massive infinite loop is currently running on the server: 1. When a mail is forwarded externally (Rule 1), it is recognized as a sent email. 2. This sent email is then copied back to my Inbox (Rule 2). 3. The new email in the Inbox triggers the external forward again (Rule 1), creating an endless loop. The external email address is continuously flooded with forwarded messages, and I am highly concerned about local storage capacity issues and overall mail server overload.

[Requested Actions] Could you please urgently take the following administrative actions on the mail server? 1. Force-stop/kill any active mail processing or rules related to [redacted]@leadit.co.kr. 2. Clear the outbound mail queue for this account to stop further external forwarding. Thank you for your immediate and urgent attention to this matter.

I have now the version 158.01 (64-bit) with Windows 11. My Gmail account only dowloads email like once a day. The server settings are: -Check for new messages at startup -Check for new messages every 10 minutes This started a few days ago, while I had the version 158.00. I have many accounts on Thunderbird, and re-installing all of them would be time consuming. Any suggestion?

- Thunderbird 158.0.1 on Mac. - Three Yahoo accounts: one sends successfully; two fail. - Sending and receiving work through Yahoo’s website and my iPhone. - Error: 550 Invalid mail from. - The error persists in Troubleshoot Mode, and the log doesn’t show the sender address. This happened after latest update Thank you

Hello,

I cannot send email from my personal Outlook.de account in Thunderbird, although receiving email works. Sending email from the same account through Outlook.com in a web browser also works.

This is a personal Microsoft account, not a business or school account. I do not have access to an Exchange Online or Microsoft 365 administration console.

Environment: - Thunderbird version: 158.0.1 (the version reported when troubleshooting started) - Operating system: Windows 11 - Email provider: Outlook.com / Outlook.de

Outgoing server settings: - Server: smtp-mail.outlook.com - Port: 587 - Connection security: STARTTLS - Authentication method: OAuth2 - Username: full Outlook.de email address

OAuth2 was already configured before the problem was investigated.

When I try to send an email, Thunderbird displays an authentication failure. A Microsoft sign-in page briefly opens and closes, after which the same error appears again.

The Thunderbird Error Console reports:

mailnews.smtp: Command failed: 535 Authentication unsuccessful, SmtpClientAuthentication is disabled for the Mailbox.

It also shows:

currentAction=_actionAUTH_XOAUTH2

A second entry reports:

mailnews.smtp: Authentication failed: Authentication unsuccessful, SmtpClientAuthentication is disabled for the Mailbox.

Troubleshooting already performed: 1. Verified the SMTP server, port, STARTTLS, OAuth2 and username. 2. Removed the saved Microsoft/Outlook authentication entries for this account. 3. Completely closed and restarted Thunderbird, then retried authentication and sending. 4. Checked the cookie exceptions list: no exceptions were present. 5. Confirmed that sending through Outlook.com in a browser works.

Removing the saved authentication entries and signing in again did not resolve the issue.

My questions: - Is this a known issue with personal Outlook.com/Outlook.de accounts? - Is there any supported Thunderbird-side fix for this specific server response? - Is a different supported account connection method available for this personal account that does not depend on SMTP AUTH? - If Microsoft must change something on the server side, what exactly should I ask Microsoft Support to investigate?

I have found Microsoft's documentation about enabling SMTP AUTH in Exchange Online, but its administrator instructions do not apply to my personal Outlook.de account.

I can provide a screenshot of the Thunderbird Error Console.

Thank you for your help.

I have three computers. I use Thunderbird on all three, but on only one, which I will refer to as 1, do I have access to my email account that comes through a Microsoft server (I have two other accounts and have no problems with them). I use Owl on 1 and used its predecessor for many years. I have recently tried to set up that same account on the other two computers. After setting it up via the Thunderbird method, it gets new mail and I can view all the old messages on the server. It does not, however, access any sent messages nor can I send message through it. I have set the outgoing server to the same settings on 1 to no avail. Computer 1 is on a university campus, which is where that account originates, but the other two are in my house. I have to sign in when starting computer 1 but not the other two. Computer 1 is running Windows 10; the other two, 11. I just upgraded both the home computers to Thunderbird 158. What am I doing wrong? Do I need Owl?

When I access my email on my computer using Thunderbird, I have it set to downloaded the emails locally and remove from the server. Starting today, WHEN I access my email using Thunderbird in my phone, all the messages are still there, and I have to manually delete them, and they still stay on my computer email app. I need Thunderbird on Android to start removing them again once I clear the server.

Hi

"I am being asked daily for my pop3 password

Login to server pop3.tpg.com.au with username ##### failed. retry, enter new password, cancel"

Each time I enter the password and my mail rolls through. I have the password saved using the password manager and I can see that the correct password is saved.

What do I do to stop this happening each day? This has only been happening since the last windows update so maybe a clue there

Any assistance will be very much appreciated

So long as I investigated, the problem is,

After version154, received emails in Japanese encoded by 8bit causes misconversion (mojibake). Emails encoded by base64 is not misconverted. Only 8bit encoded shows the problem. Version153.5 is no problem. Version154 and newer shows the problem.

Here are OK/NG by sender/receiver combination. Sender version154 8bit - receiver version154 - NG Sender version154 base64 - receiver version154 - OK Sender version154 8bit - receiver version153 - OK Sender version154 base64 - receiver version153 - OK Sender version153 8bit - receiver version154 - OK Sender version153 base64 - receiver version154 - OK

Emails encoded by base64 is OK, but some senders can encode by only 8bit. I cannot find how they can use base64. It would be helpful to know to use base64 encoding in version154 (or later).

However, the best way is that version154 (or later) can read 8bit encoded email in Japanese. I would like to thank anyone who help the problem.

Current Thunderbird setup: Computer: Pop3 Phone IMAP

Until last week, I could leave the emails on my phone all day until I accessed them on the POP3 setup on my computer. That would remove the emails on the server and when I went back to my phone, it would show an empty inbox. Now, the emails do not clear out of my inbox on the phone, and I have to delete them manually. This happens on both the production version and the Beta version. Also, accessing via webmail, the inbox will be empty after accessing email on my computer.

For years I have had two email addresses: - @virginmedia.com and an older @blueyonder.co.uk one - with no problems: POP is set up with the two servers pop3.virginmedia.com and pop3.blueyonder.co.uk. SMTP is set up with smtp.virginmedia.com for both. Everything was sweetness and light. I could receive and send from both accounts no problems.

Two weeks ago, the MF-505 relay refused error popped up when I tried to send an email from @blueyonder.co.uk and has continued to do so ever since. I can receive @blueyonder.co.uk emails with no problems. I can receive and send from @virginmedia.com with no problems. I can login to the virginmedia webmail site with @blueyonder.co.uk and send emails with no problems. Even so, I changed the @blueyonder.co.uk mail app password with Virginmedia just in case; no help. I have deleted the saved passwords and resaved them; no help. I have tried adding an @blueyonder.co.uk smtp outgoing server to Thunderbird even though I never had to before; no help. I have checked smtp server outgoing settings - even though everything works fine for @virginmedia.com. No problems there.

The general advice "out there" seems to be wait and it will resolve itself but it's been two weeks and for what it's worth Virginmedia confirm there is no problems with my account or their services their end.

any suggestions will be appreciated.

I tried the automated setting up - several times but get the error message below, I tried changing the authentication but same result.

I tried the Help here: https://support.mozilla.org/en-US/kb/thunderbird-and-hotmail - but it didn't help!

I have the settings it shows for Outlook - but it doesn't work! When I "Continue" I get Authentication error. Show less

"Unable to log in at server. Probably wrong configuration, username or password.". It hasn't asked for a password.

I can login in to Outlook webmail and receive messages. Please help. I'm not overly technical but not totally ignorant either! Thanks, Isobel