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Since I installed Thunderbird on my new computer, I have been unable to send email using Thunderbird with my Spectrum account. I can receive email using Thunderbird with no problem.

I called Spectrum tech support and they confirmed that I can both send and receive email from their webmail app, so the problem is not on their end. They also gave me the correct settings to use for Outgoing mail, which I entered within the Thunderbird Account Settings. I read the articles on the Thunderbird support site, but they did not fix my problem.

My Thunderbird version is 115.12.1.0. My OS is Windows 11.

The attached photos show the failure message I am getting and also the account settings. Please let me know if you have any questions or if you need anymore information.

I really like Thunderbird from my previous experience so I really hope that you all can help me overcome this issue. My wife can send email from her phone but we really want to be able to do it from the desktop as well. Please help!

Thanks, Bruce

Quick Filter is still extremely slow on the newest version of Thunderbird (128.1.1esr). I asked a question about this previously. It was reported as a bug (see links below) and it says in the report it was fixed, but the problem still seems to be there in the newest version. Any idea when this will be fixed, or if there is anything I can do about it?

There is a thread about it on reddit. https://www.reddit.com/r/Thunderbird/comments/1e6hryp/quick_filter_is_super_slow_in_128/

There was a bug reported, and it is listed as closed (solved). Here is the bug report thread: https://bugzilla.mozilla.org/show_bug.cgi?id=1908761

Thanks for you help.

I use Thunderbird as an email client, and a POP3 connection to Virginmedia to download emails. This has worked pretty well for years. In the last few weeks the email content has been very slow to load. Although the list of emails in the inbox in Thunderbird appears quickly, when I select an email to view its content there is a delay of perhaps 5s while it says 'Loading Message...'. There is a similar delay when deleting a message.

Once a message has been loaded, it can be re-visited without a delay, but if marked as unread there is again a delay next time it is read. This is also true if I work offline, so it can't be Virginmedia's server.

I have another account using an IMAP connection which doesn't suffer from any delay. Thanks if anyone can advise.

Sometimes my Thunderbird Inbox (or some other folder) is empty, and it's Properties Location is empty. I've found nothing to fix that except to close Thunderbird and reopen it; sometimes needing to wait a few or several minutes before reopening it. That's always (finally) worked, but I guess I'm concerned that one time it won't work. What could be causing that?

Hello, PG&E just updated their webpage and it doesn't allow me to sign in. It informs me that Fire Fox isn't a compatible browser, all other websites are fine. It suggests Chrome as the preferred browser. We pay our utilities through their site and we enjoy Fire Fox.Can anyone help resolve this issue? Thanks

Yesterday, after downloading my emails from the weekend and deleting all of the junk mail Thunderbird suggested I compact my Inbox. I went and emptied my trash folder and then compacted my inbox. After the compacting was complete I could not get any of my emails to load in the preview window or in a new window. I then went to properties and tried the "repair". After that I lost all of my emails back to 5-24-21. Is there anyway to recover my lost emails?

I migrated to a new computer with Windows 11 and to the latest TB nebula. I copied the profile folders to the new system and it imported 20 years of email correctly. BUT every connections seems to hang and eventually times out. It almost looks like TB blocked by a firewall. Even checking for updates eventually times out. HOWEVER everything works fine in troubleshooting mode.

I have no add-ons installed. I have no VPNs or additional firewalls. Disabling Windows firewall entirely doesn't change anything. I tried "Make the changes and restart" with no success. I added thunderbird.exe to the exceptions to the windows firewall and even added a rule. I tried uninstalling and reinstalling.

Is there any setting related to the connection that would be different in troubleshoot mode? Apparently nobody has ever experienced this problem, I feel like I'm going insane.

Dear Thunderbird team and community,

long term user here, thanks a lot for your awesome software, absolute essential live-saver.

A few days ago, I did the update to 128.1.0esr (64-Bit) from 115 on win11. Very smooth transition, no issues with my 4 accounts, calendars etc. Great experience.

However, since the update, QuickSearch Ctrl-Shift-K filter that did instanteaneous filters on my 25k mailfolders came to griniding halt.

What happend: - Type a search term with filters on 'subject', 'from' 'to'activate freezes the app for many wall-clock seconds (5-10). Switching to another app and switching back gives me a Windows (Thunderbird not Responsive) in the title bar of the main window during that time.

What I expected: - almost instantaneus filter without noticable lag

What I tried: - deactivate, then uninstall expression search addon incompatible with 128 - restart in Troubleshoot mode with all addons disabled - reboot OS (Win11) several times - searched forums and stackoverflow for similar issues using different search term approaches and combinations

Thank you very much for any pointers how i could resolve the issue. Thanks again for your awesome product!

Jakob

My system (sorry, German)

 Allgemeine Informationen

   Name: Thunderbird
   Version: 128.1.0esr
   Build-ID: 20240730200333
   Distributions-ID:

   Update-Kanal: esr
   User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Thunderbird/128.1.0
   Betriebssystem: Windows_NT 10.0 22631
   Betriebssystem-Theme:

   Starter-Prozess: Aktiviert
   Fenster mit mehreren Prozessen: 0/0
   Fission-Fenster: 0/0
             Standardmäßig aktiviert
   Externe Prozesse: 3
   Unternehmensrichtlinien: Inaktiv
   Google-Location-Service-Schlüssel: Fehlt
   Google-Safebrowsing-Schlüssel: Fehlt
   Mozilla-Location-Service-Schlüssel: Fehlt
   Abgesicherter Modus: true
   Speichergröße (RAM): 63,2 GB
   Speicherplatz verfügbar: 304 GB

 E-Mail- und Newsgruppen-Konten
   account1:
     INCOMING: account1, , (imap) 
     
   account2:
     INCOMING: account2, , (none) Local Folders, 0, 3

   account3:
     

   account4:
     
   account7:
     
 Bibliotheken

     Bibliothek
     Status
     Minimal vorausgesetzte Version
     Verwendete Version
     Pfad

       RNP (OpenPGP)
       OK
       0.17.1
       0.17.1.MZLA.128.1.0esr.botan
       C:\Program Files\Mozilla Thunderbird\rnp.dll

Thunderbird no longer sends emails from my standard account. Receiving continues to work without any problems. The provider is Vodafone with the .kabelmail.de address Screenshots show the settings. Otherwise these always worked. I've already set the TLS version to 1 in Thunderbird, without success.

The error message can be seen in German on the other screenshot and means in English:

"Failed to send message. Error sending message. The mail server responded: spam id=155817::1723829084-40E2144E-91888C35/29/1527808. Please check the message and try again."

Can no longer view passwords as I get a popup headed "Windows Security" asking for a user name and password. Tried several combination for the various email address without success. This has only happened within the last couple of days. Please advise

I have used Thunderbird for years, so updated to/ installed the latest version 128. This updated a few days ago and since then with almost every action there is a 20 to 30 second 'not responding' delay. Windows has not updated in that time, though it might be a windows issue.

Hello. The latest update of FireFox 129.0.2 still has intermittent crashes. Sometimes I can't access my Google searches or links in emails don't work, then it works, then it starts to malfunction again. I have to restart my PC. Could you release a patch that works as well as before FireFox 129.0? On the other hand, Canal+ works perfectly Thanks. Kind regards.

I quit working for a company and my email account with them was closed. However, I like to keep the emails around just to have some history.So I am trying to disable the account without wiping it out of my thunderbird. Following advice from another question, I turned off checkboxes in my server settings (shown in image).However, regardless of this, whenever I open thunderbird and various other times besides, it pops up this demand for my password for that account (second image, note the banner at the top). How can I REALLY TRULY deactivate the account so that thunderbird will never again try to read anything from it?

I had a gmail account, I no longer have the gmail account. I deleted the IMAP and SMTP entries. I have no CardDAV entry for that account, no calendar entry, and no chat entry (that I can see; but that old account is lurking somewhere). None of my extensions use (user-configurable) credentials.

What else is there? Is there a way that I can search Thunderbird's config for the account username?

I'm about to screenshot settings, archive this profile, and start anew. I'd really like to avoid that, because I have collected >10 email accounts over the decades and setting everything back up all at once seems a hassle.

What are next troubleshooting steps? TIA for any wisdom or guidance.