Thunderbird Community Forum

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

Hello This is a Thunderbird on Windows 11 question If I select a file, right click and then click on "Send to" >"Mail Recipient", Windows tell me

There is no email program associated to perform the requested action. Please install an email program or, if one is already installed, create an association in the Default Programs control panel.

But Thunderbird is installed, up and running and is set as default for MAILTO (see image)

So what could be the problem?

Luckily, files can be loaded into messages using the "Attach" command in Thunderbird if that gives you a clue

Thanks in advance for any help

I am currently unable to send emails. I am getting a error message saying: Connection refused - OB116. 159.196.15.181 is blacklisted in Abusix Mail Intelligence. I can receive emails but not send them.

I have Proton Mail, and Proton Bridge. It was working until Yesterday. Starting Yesterday, New emails would show up in the Web app, and the ProtonMail Desktop App, but would not make it to the Thunderbird Inbox. The first email that did this arrived at 1:30PM on 10/19. When a new email arrives, a new email windows notification will popup in the lower right hand corner. I checked Spam, and it is empty (I find this hard to believe). My phone also displays a new mail notification.

I know Thunderbird is receiving the emails. I can find the new emails by using "Quick Search", and searching for the email address of the sender of the new email. The results are completely without formatting, and do not indicate what folder they are in.

For example: I have a Gmail Account (GromitToo@Gmail.com), and I sent a test message to my ProtonMail address (MisterFuzzyGuy@Proton.me). That email contained the subject line "Ping 10/20" and it contained my auto signature. If enter "Gromittoo@gmail.com" into the quick search, and I hit the return button, it only finds a message I sent about 7 weeks ago.

If I then click on the magnifying glass icon, a new tab opens up with the results. It displays the first 10 results of 54 results searching for "gromittoo@gmail.com". At the top of the results is my "Ping 10/20" test email. I could not find the folder name where my "Ping 10/20" test email is located on this results tab.

I see that the text "Ping 10/20" is a hyperlink, so I click it. The tab shows up, and strangely, it show the email and one reply. No reply was received by the Gmail account.

I have done troubleshooting of the ProtonMail bridge. The fact that the email is found somewhere in my thunderbird installation, I don't think ProtonMail Bridge is the issue.

Hi - We are receiving this email when sending to live.co.uk and hotmail.co.uk email addresses from one of our emails but not our other domain emails

550 5.7.1 Unfortunately, messages from [91.238.162.49] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3140)

I can't see any difference in the account settings and wondered if anyone could help?

Jen

My e-mail is zamaaero@zamaaero.com. But since today I can not sent any mails. Message is: "Slanje poruke nije uspjelo. Greška prilikom slanja pošte. Poslužitelj je odgovorio: SMTP AUTH is required for message submission on port 465. Provjerite primatelja pošte "zgmazoretkinje@gmail.com" i pokušajte ponovno". And that is for each and every adress I try to send.

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

I recently set up Thunderbird for Windows as a troubleshooting step for my Yahoo Mail account which has been generating an incessant number of authentication pop-ups in Microsoft Outlook (Classic) for Windows. I had been using New Outlook for many months before switching to Classic Outlook a couple of weeks ago. With New Outlook, there had been no authentication issues nor pop-ups appearing. I have been using the OAuth authentication, not app passwords, in all cases.

Setup within Thunderbird was relatively easy and the OAuth authentication went through without issues. The account has synchronized and seems to be continuing to do so as I read, delete, and send messages.

However, when I went in to the Activity Manager, I'm seeing a number of errors, appearing every 10-15 minutes or so. They read as follows:

• Alert from account xxx@yahoo.com: AUTHENTICATE Server error - Please try again later

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

• The current operation on 'Inbox' did not succeed. The mail server for account xxx@yahoo.com responded: p.

Can anyone help me understand what they mean? It would help me stabilize Thunderbird and might give some clues as to what is happening in Outlook Classic for me. It would seem some have authentication issues with Yahoo on different platforms while the service works perfectly fine for others. I would like to move away from Yahoo as I find it finicky with a number of its features, but I'm a long-term user (25+ years) and don't see that being a practical solution at the moment.

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?

I use emojis in email, but recipients report that the text of the email arrives covered with emojis. I thought it was a problem with the receiver until a second person just reported the same issue with an email I sent them. Both are gmail accounts . . .

I have a number of pop3 accounts with the same mail host, but suddenly one of them gives me the message "Unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox."

I use Thunderbird on two Windows machines, and the problem is on both, so it is something in the interaction with the server, however, there is no problem accessing the mail via webmail directly on the server.

I have tried to change password on the account, but the problem did not go away. In fact, I got the box to tell me that the old password did no longer work, so I know that the problem pops up after log in to the account. Before the error message appears, the message "downloading 208 messages" (or something similar) briefly appears.

Is there a way to find out exactly what fails?

I've received the following message the last few days when I send an email with Thunderbird:

Your message was sent but a copy was not placed in your sent folder (Sent) due to network or file access errors. (I am sure neither of those errors apply.)

It then gave me the option to "save" (I didn't get the exact wording before I clicked on "save") and I don't see it anywhere. This was a very important email and I need to find it.

Bonjour, La copie des messages envoyés n'apparait pas toujours dans le dossier des messages envoyés. C'est très gênant, comment faire pour rétablir la situation? Je voudrai avoir en copie TOUS les messages envoyés. MERCI

I have been using thunderbird for years, Spectrum recently made changes and now I cannot get my emails. My email address has not changed. I have allowed thunderbird to set up email and I have manually configured the settings per TWC, and thunderbird. I have confirmed the connection but still no new emails are coming in. Any help would be greatly appreciated. Thank you.

Using Thunderbird 115.18.0esr Supernova 64-bit on Mac laptop OS 10.13.6. Worked fine for years, with ongoing Thunderbird updates, even though Mac OS is 32-bit. Suddenly, after 10/6/26 can't retrieve emails although I can see them on the ATT Yahoo server website. Can still send emails with Thunderbird. Inbound server settings are: POP server inbound.att.net, Port 995, SSL/TLS, Normal Password (I long ago created a Secure Mail Key, and even tried creating a new one). But inbound server name doesn't show in Saved Passwords (only outbound server with Secure Mail Key as password)? I have tried everything suggested, repaired my inbox folder, updated Thunderbird files, etc. in Profile as recommended. But still no prompt for password when attempting to get messages. Just shows "Done" at bottom left with no new messages received. But new messages are seen on server website. So it appears that Thunderbird isn't able to connect to the ATT Yahoo server to get emails. Why? And what else can I do? I love Thunderbird and want to continue using it.