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This program is deeply flawed. It's slow & must be rebooted multiple times a day. Then at times it works just fine. What's the problem & how to fix? The address book doesn't show what folder you put a contact in. The old version did. This is a flaw too.

The update to Thunderbird 115.0.1 broke the "Unified folders".

I have two eMail accounts: - the first on a custom server, I do not know its characteristics - the second is an Office365 institutional account

Only the account on the on the custom server is shown in the Unified Folders.

The second account is shown as a folder in the Unified Folders pane, at the same level as "Archives", "Junk" and "Deleted".

I have tested one solution reported to be working: https://support.mozilla.org/en-US/questions/1003446

It does not work in my case.

Any help?

Hello,

I am currently facing difficulties with the automatic configuration of the Thunderbird mail client. I have set up a web server that provides an XML file containing the configuration information, accordingly to what we can see here -> https://wiki.mozilla.org/Thunderbird:Autoconfiguration:ConfigFileFormat, and the URL of the file is accessible without any problem from my host. However, when I try to configure Thunderbird to automatically retrieve the configuration, it doesn't seem to send an HTTP request to the server. I used wireshark to see what happens here and I can see a DNS request for autoconfig.mydomain and a response with the correct IP, but no HTTP request after that. I used the log console of thunderbird and I get those messages : mail.setup: guessConfig failed: Impossible de trouver un serveur

Here's what I have checked so far:

The configuration XML file has been validated and does not contain any syntax errors. The URL of the XML file is correct and accessible from a web browser. No proxy settings on my system. No firewall rules seems to be blocking my system to access autoconfig. Despite all these checks, I still can't resolve the issue.

If you have encountered a similar problem or have any ideas about what might be causing this behavior, I would greatly appreciate it if you could share them.

Here are some additional details that might be helpful:

Operating System: Windows 11 Thunderbird Version: 115.0.1 (also tested on 102.5.1) The configuration XML file is accessible at this URL: http://autoconfig.<mydomain.com>/mail/config-v1.1.xml?emailaddress=<username>@<mydomain.com> Error message in the Thunderbird error console: "mail.setup: guessConfig failed: can't find a server"

Thank you in advance for your help !

After moving my thunderbird 104 profile to 115 supernova (including the profiles.ini file), I can see the full list of accounts and folders in supernova, but none of the emails are visible. I can receive and send new messages, but again - none of them are visible when I want to see them later in the inbox or sent folders. Moreover, the right-click mouse button does not work on the whole list of accounts/folders on the left side of the agent. What to do. I have 16Gb of emails and cannot use them.

In Thunderbird 115, each time I want to reply to a message, the cursor defaults to the "Search For" box under address book contacts. In previous versions, it went to the message pane where I could start the reply message. How do I fix this? Thank you

TB upgraded to 115.0.1 this morning, (although PCMatic has been telling me this had happened yesterday). Now I find that Search (Ctrl-Shift-F) no longer gives consistent results, and never end searching.

Since the last update my Thunderbird keeps frizzing up and I have to use Task manger to close it and then open it again. This happens all the time! I need this email program to work right.

Thanks Bob Williams

I receive incoming email on Thunderbird, but cannot send mail. I have used Thunderbird for years, never updated it and this problem just started yesterday (7/25/23). I have gotten an error message saying "login to server smtp.nycap.rr.com failed". I have called my ISP, Spectrum, and ascertained that my email account with them is functioning, so the issue is something with Thunderbird.

Hello, on my bussiness mail on thunderbird mails that i read are all deleted. I didn't do anything to do them, is there any way to bring them back? There are very important messages in them that i really need

I have noticed on the latest version of THUNDERBIRD that when I go to delete a number of selected emails from my email account I get popup notification on the top bar that says " ( Thunderbird not responding )". I hadnt noticed this happening before and Thunderbird now seems ...a bit slow.

I am unable to send emails from my Thunderbird email account. There is no "dashboard" or options bar displayed when I hit "reply" to a message. Nor is there such an options bar to create emails.

This is worrisome.

Please advice.

Just wondering if there could be a button the refresh the screen and clear out anything except unread emails. all other email accounts would be closed. just make a clear screen thanks

Hello volunteers -- I downloaded Thunderbird to a newer iMac. The Input messages and folders from my laptop appeared fine, but the addresses look like they are from Contacts rather than the laptop Address Book, i.e., names, phone numbers and postal addresses, but not email addresses. The first image (screenshot from an Apple laptop) is what I want; the second is what I got on the iMac. Is someone able to help me with this? Thanks very much, Susan

As of version Thunderbird v102.13.0 (32 bit) and after upgrading to v102.13.1 I get an error after downloading emails from my gmail account:

"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've been using Thunderbird for maybe 20 years now & on this PC since I built it over 3 years ago, this is a new problem that I have not seen before.

Thunderbird is now useless to me. When it connects it starts downloading emails, gets so far & stops with this error. It's now 5:50PM and the most recent email it has is from 07:35 AM this morning. It keeps downloading the same ones over & over again, always stopping at the same one with the same error.

This app is now utterly useless to me.

Hi I have been using Thunderbird as my email client, which has worked fine. However, after an automatic update of Thunderbird, all my "historical" emails have disappeared and no longer show in my inbox or folders. I located the pop3 directory in roaming/appdata/thunderbird, but have not been able to import the mail file or the directory using either the import feature in thunderbird or the installed importexporttools ng.

I appreciate your help to retrieve my emails.

Barry Borman

A complete novice, so please keep things simple. I recently changed email host/provider and was advised to back up my existing Thunderbird profile which I did. I have now an Sbd file. I want to reinstall the profile and I have used the import prompts on Thunderbird, but I dont seem to be able to import anything.

At the moment I do not have access to previous emails, addresses etc. Please advise, thanks in advance. Stuart

When I try to send to send an E-mail message I get the message "The mailserver answert : Unable to relay without authentication.. I checked everything also by the provider the settings are OK as far as I can see. Sending mail from my G-mail account is no problem! Hoping you can help me regards P.Rensel