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All of the sudden today I can't send email from Thunderbird. Incoming email fine. However whenever I try to send I get a server timeout error. This has been working fine for years up until today. This is the message; Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtphm.sympatico.ca timed out. Try again.

Hi, I Changed IMAP to POP3, rebuilt Inbox.MSF and it worked for a few hours. Now, I cannot get control of the Thunderbird screen (it is grayed out and "the wheel is turning") I've also tried to Shift click to start Thunderbird in Troubleshoot mode and checked both boxes. (I get control for approximately 15 seconds). I am running Windows 11 with 64 Gb of RAM and enough disk space. What should I do now?

BTW, I am an I/T professional, so you may use jargon in your response.

Thank you in advance.

Hello from Belgium,

I use Thunderbird with my Hotmail mailbox. Sometimes the body of a message is missing. I just have a serial number like this "--0000000000003fb6ca0619db6a84--" When I connect directly to Hotmail via the web. I can see the body. Curious, isn't it ??

Jc

Hi! I have added an e-mail account to my Thunderbird and the support by the e-mail delivery says that I should just log in as it was an office365-account. I have done that and I can read the incoming mail, but it is not possible to answer or write a new message. I´ve tried different ways at the outgoing server, but always getting the same message: It was not possible to send the message. The message was not send because of the impermissible number of recipients (well, more or less - translated from swedish). So what to do? Y.S. Mikael Sanner

I have been using Thunderbird for many, many years now and been happy with it.

However last 6 months or so, it has been constantly crashing, often several times a day. Crash reports almost never get sent as it says there is a technical error.

Using a HP Spectre 360 (7 years old) with Windows 10. All windows updates have been applied, and constantly virus checked etc. No other programs giving me grief like Thunderbird which is the most important program. Before Thunderbird I used Eudora which was also great. Always regretted changing to Thunderbird.

I am now over it and Thunderbird. How do I transfer all my emails, attachments etc going back 10-12 years or so to a new email program.

Any suggestions regarding a better email client. Don't want to use Outlook. Have been looking at Proton Mail.

Since I updated this version, Thunderbird often fails to connect to the mail server. And sending mail is very slow.

I don't know why, is it because I use VPN? Do I need to set Thunderbird to use the system proxy to connect to the Internet? I used automatic detection before.

Les courriers d'un même correspondant sont regroupés quelque soit la date sous un "onglet" qu'il faut ouvrir pour y accéder. Lorsqu'un nouveau message du correspondant rentre, il se trouve masqué par ce regroupement. Comment désactiver cette fonction (si possible)? R.CAILLAUD r.caillaud@socren.fr

Email errors started occurring on or about November 25, 2024. Multiple calls and tech support with Spectrum techs and hours of troubleshooting brought about O results. I obtained all necessary protocols for configuring email to Spectrum requirements and for sending and receiving, but I still get outgoing errors. I have been using Thunderbird for 5 years or more now and never had any issues until now. Upon inspection through Thunderbird tools/setting/ looking at "SAVED" passwords, I no longer see "IMAP" or "MAIL" access protocols. It was there previously. I also disabled all my firewall and vpn settings and still cannot send out any emails. I have thoroughly checked out both my personal email setting and my small business email settings and everything as it relates to Spectrum is correct. Spectrum said one thing they found was that the email settings (specifically, would not resolve with the server because of a syncing problem). Spectrum did all they could to resolve on their end, but the issues, as they see it now resides on the Thunderbird side. In an effort to resolve the issues, the Spectrum tech looked and looked for a phone number for Thunderbird and said this is the first time he has never found a number that one can call for some sort of assistance. Emails directly to Thunderbird are very, very slow. And to compound the issue, there are no lists I could find is a repository for error codes and no valuable tech support or specifications could be found that provides any real help for resolution. So now I am making a last ditch effort to contact Thunderbird for a one on one phone conversation that will resolve all the issues I have encountered. Hopefully with your immediate reply, we can resolve these issues and I will be able to help others resolve these same issues. These issues are not just isolated to me. There are literally hundreds maybe even thousands of people out there with the same issues. PLEASE contact me asap. Thank you for your time. (PS. I do receive some messages via email, but sending out is the issue)

Ever since the new version of Thunderbird I cannot send emails. I can receive them but not send them. I have found that if I temporarily disconnect my VPN, it sends OK. Your failure to provide software that can co-exist with a VPN without crapping itself is a poor advertisement for your product. I have read some of the millions of posts about this particular bug and your answers seem smug and lazy without addressing the problem.

I am running Thunderbird 128.5.0esr (64-bit) on 2 computers: a lenovo T480s and an HP EliteOne 750 Both are running Linux Mint 22. Both use gmail with the same config.(see pic). Comcast is my ISP

Problem If the computers are connected to my router by ethernet cable both can send emails

If I use WiFi neither computer will send. The "send" popup just spins.

I can send gmail from my iphone over the same wifi network

I tried hooking the computers up to a hotspot from my iphone; neither will send

Any ideas?

jod23832944@gmail.com

The global search in TB is completely defective. I am now running 128.2.0esr and hoped that update might fix it. It hasn't. I just wonder, are there any older or non ESR versions I can downgrade/move to, where the search is fully functional?

Hi all,

I have been having a recent issue with Thunderbird build 115.4.1 (64-bit). I've attached a picture. Every 24 hours or so I have to approve a security exception for my pop accounts. I have the make permanent check box checked but it keeps happening. This has been happening over the last 3-4 weeks. I am using Windows 11 (23H2). I've played with lots of different settings but nothing seems to fix the issue.

HELP

Hej Jeg har i dag prøvet at oprette en ny mailkonto ved thunderbird Mozilla men jeg kan ikke få mit mailsystem til at sende en mail ?? Der kommer denne fejl : (det hjalp ikke at oprette en ny mailkonto) for fejlen er der stadig

Afsendelse af meddelelsen mislykkedes. Der opstod en fejl under afsendelsen. SMTP-serverfejl. Serveren svarede: Client host 80.208.70.116 blocked using SBL-XBL - see https://www.spamhaus.org/query/ip/80.208.70.116 for details.

og nu ved jeg ikke hvordan jeg skal løse dette problem. vores internet udbyder er jubii.dk

mvh Lena hagner hagner@fiberpost.dk

In 2016, whilst importing emails into Apple Mail, about 20,000 email were given the date and times of the import instead of the date from the Received Header. Luckily Thunderbird has retrieved the emails from my IMAP server and given them what appear to be the correct dates. Meh knowledge of the tech behind this is very limited. Anyway, my question is, how can I export a fresh mbox or other format of mail folder with Thunderbird applying the correct dates to each of the messages?

Sometimes, when I delete one email from the inbox, the inbox shows "no message found", even though there are still other emails in the inbox. The remaining emails are still in the inbox, they just don't show. If I right click on inbox in the left panel, and select "open in new tab", the remaining emails show in the new tab, just not in the main inbox. If I close out thunderbird and start it again, the emails show in the main inbox. The problem occurs occasionally, whether I select delete from the menu bar, hit the delete key, or right click on the entry and select the trash can icon.

This problem started maybe 10 or more updates ago. For each new update I think "surely it will be fixed this time".

I have included a partial screenshot of what it looks like after the problem occurs.

This problem is different than any other questions I have found in the search. It purely a visual presentation error, not disastrous, just highly annoying. Any solutions will be greatly appreciated.

The bulk filtering stopped working correctly a couple of months ago. Earlier on it stopped spam and I had the possibilty to mark a message as "Not junk", the filter then learned that messages from this sender was not junk. Today the filter is not learning. If it stopped a message and I marked it as "not junk", it´s not learning and will continue to stop messages from this sender.