Thunderbird Community Forum

Thunderbird stopped syncing with my GMX email accounts (I have several) a couple of days ago. It keeps reporting that the attempted connection has timed out. I haven't changed any settings on either Thunderbird nor GMX. Any idea why and how to fix it?

Hello, It's getting very frustrating some time hotmail folder/emails are there ans other times not, then some times it will start a downloading all messages folders as if it a new set-up. I have follower all info I can find but it just stays the same.

Kind regards Chris

Although 1900 or more messages are reported, Thunderbird only downloads a few - 18 once, 10 and now only 2 - before stopping. After deleting all messages, stopping and restarting Thunderbird, it then downloads the same few - or less - again, no new ones, and the are very old ones. Screenshot shows current situation - several identical messages only. Version 140.8.1 esr on Windows 11 - both up to date. I don't know what esr means !

Hi,

I am trying to edit my message separator line (which I added many years ago). Now there is a big gap in the line and messages. How can I reduce this gap please? Any advice?

Regards,

LS

In Thunderbird, the "Play a Sound" feature has quit. I changed from 'Use the following sound file' to 'Default system sound for new mail' and back again. That didn't work. I tried changing the file in 'Use the following sound file'. That didn't fix it. I restarted Thunderbird and it was the same. I don't want to uninstall and re-install. Is there a fix?

突然、どこにもメールの送信ができなくなってしまいました。 受信はできます。 KDDIを使っていますが、問い合わせしましたが、サーバーに問題ありません。 Webメールでは送信できます。 Thunderbird側の問題のようです。 添付のようなメッセージが表示されエラーになってしまいます。 解決策を教えてください。

Suddenly, I can no longer send emails anywhere. I can still receive emails. I use KDDI, and I contacted them, but they said there are no issues with their servers. I can send emails using webmail. It seems to be an issue with Thunderbird. The message shown in the attachment appears, and I get an error. Please let me know how to fix this.

Recently switched ISPs to a fiber internet company. After the switch, now whenever I try access my comcast email tunderbird gives me a message that my IP is temporarily blacklisted. I get two messages. One is a windows notification that says the blacklisted message, and then a popup message from tunderbird that it cannot log in. I have contacted my ISP to ask them what's up with the blacklist, but what's weird is that I can seem to access these accounts fine through Outlook, which would seem to indicate that there is some issue with tunderbird. I'd really rather use tunderbird than outlook. Can somebody help me with this?

The few articles I could find on this all suggest changing the IPv6 setting but I checked that and it is already set to what they suggest.

I tried deleting the account and recreating it in tunderbird, but it won't go through it says it can't log into the account.

Using Thunderbird b150, but have tried -esr and regular TB. New install of Win11 26200.8037. Up to date Firefox. Have been trying for a week for Thunderbird to authenticate my Outlook account. Worked with Copilot. Finally found a TB setting, network.proxy.allow_hijacking_localhost, that was set to FALSE. Set it to TRUE and Outlook account authenticated. Able to finally send mail. This was last night. This morning: Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp.office365.com failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again. No changed to any programs. Have deleted Outlook saved password. Thunderbird NEVER offers to get password/authenticate. I am truly and sincerely frustrated.

If someone can help me, would sincerely appreciate.

Hi there! I cannot get Thunderbird to work with the SMTP-server of my new Outlook account. I checked and double-checked the server specifications, the password, tried OAuth2 as well as login with password. I checked that SMTP is activated in my Outlook settings. Checked Thunderbird and my MacOS for updates as well, of course. I even created a new profile in Thunderbird. The result is still always: "authentification failed". Can someone help? Thanx...

I changed my email password on the providers web site, my phone, tablet both asked for the new password but Thunderbird has not, why can I still send and receive email ?

And don't see a place to change the server password either, I thought it would just ask.

Hello everyone

It's been for a few days since somehow it became unable to send mail. The error message is "The message could not be sent because we were unable to connect to the outgoing (SMTP) server smtp.gmail.com. The server may be unavailable, or the SMTP connection may have been rejected. Please verify that your outgoing (SMTP) server settings are correct and try again. Problem is I cannot see any mistake in my smtp setting. Some help much appreciated. Thank you.

Taka Jimbo

I was just notified that my email provider is ending service after 30 years. I need to move all my folders and messages from my old Provalue account to a new Gmail account. Is there an easy way to do this? Can I just change the account name and password as well as the server settings? They are both Pop3 accounts. I also need to point 131 message filters to the new Gmail account. Is there a way to do this without having to rewrite all of the filters? Do I need to copy all of the folders and messages to the new account manually? I have 30 years of emails that I still refer back to occasionally. I need help, what do I do? Thanks in advance for any help I can get.

When attempting to set up an e-mail account for Zoho e-mail I get an authentication error. It says: "Unable to log in. Probably wrong configuration, username of password." I disabled Account Hub, tried again, but this did not solve the problem, and I get the same authentication error. I tried several other things, using manual configuration, copying instructions from the Zoho website, but none of them worked. They all ended with the error message, "Thunderbird failed to find the settings for your email account." The server and port settings are correct. The username and password are correct. What is the problem?