Thunderbird Support Forum

I had to delete and add back several accounts due to a change in servers (cox.net to yahoo.com). Prior to this I just had the All Folders, Local Folders and below. Now I have the Unified Folders and below, which are essentially a duplicate of the folders in the old All Folders. (See attached image) Not only is it making things confusing but I'm storing duplicate emails and it seems to be affecting performance, Thunderbird now randomly quits and restarts. So, how do I delete either the All Folders or the Unified Folders and move the few sub folders that are unduplicated into the remaining group?

how can i stop thunderbird from interacting with windows defender anti virus scan? when ever i download or delete emails i get a few seconds of "not responding " and the whole computer is non responsive. i used to be able to turn off real time scan in security and it would work for a day and then windows would enable it again. now since the last upgrade windows isnt allowing me that option any more. solutions?

My emails have large a lapse in time before the downloading catches up. For example right now my last email showing says 6:41 PM when it is actually 9:44 PM. This is costing me sales on items I have listed on the marketplace because I have no current notification via emails. Please help.

I can receive emails to my (protonmail.com server) email account on Thunderbird. But I cannot send emails. This is the error message. "Sending of the message failed. An error occurred while sending mail. The mail server responded: Error: no such user. Please check the message and try again."

Thank you for your help!

rj

Previously, for years, selecting and deleting groups of emails took only seconds. For sometime now, the more emails selected to delete as a group causes the amount of time to do so to become longer and longer. Minutes go by. It feels like instead of dealing with all of them at once, it's deleting one at a time, but that's just a guess. What can I do to get back to where it used to be? Thank you.

OSX 12.7.4

I upgraded to 115.9.0 to get OAuth for some, but not all, accounts. Those on Gmail & Yahoo are OAuth. I have non-OAuth accounts on a Zimbra server, and on Panix.com.

It prompts for the first account's password. TBird then gobbles all available CPU on the machine, and stays there. If I wait long enough, it becomes usable again, but that may well be hours.

However, once it calms down, it works normally.

Intertwined with this is: TBird rejects the Zimbra passwords as I enter them. I retry and retry, and then they succeed. I know the passwords are correct; I've even typed them out, and then copy&pasted them in. I'm not sure about the Panix account, if its password works the first time or not.

I tried restarting in troubleshooting mode; it made no difference.

Have used a Onetel e-mail account for a number of years.

Occasionally, the outgoing server drops out so messages can't be sent only received.

When trying to reconfigure with correct port numbers etc it will never reconnect straight away and there is always a long process to get it up and running again which always seems different every time.

I can never manage this by myself and always have to get help in. This has baffled the best brains in the business so any help or advice gratefully received.

I'm about the 100th person to have this problem, so I have spent the better part of two days looking at all the threads and possible fixes. Like all the others, with no warning, my TBird stopped being able to send messages through Spectrum. It did NOT start immediately after I updated TBird to 115.9.0 (in March) but just three days ago. I have three roadrunner addresses in TBird, and one other one associated with a website I have. All have the same problem. My phone and my iPad send messages just fine.

I tried all the fixes that worked for some. They didn't work for me; I continued to get various, inconsistent Send Message Errors. I have come back to the recommended Spectrum setup for the outgoing SMTP server: mail.twc.com, Security is STARTTLS, Port 587, Authentication is Normal Password, my username is my email address. Of course the problem is not fixed.

What DID work was putting TBird in Troubleshooting mode, using the Spectrum setup above. While that is adequate, I would much rather find out what is wrong. I have Matt's 10/7/23 11:56 AM answer to someone, asking for the Troubleshooting Information. I will be glad to supply that but I need an answer to this message in order to do that. Thanks! Demaris

The message field is too narrow for all messages, except pure text messages. A screenshot is attached. How can I modify the userChrome.css so that all available space gets used?

Since the latest thunderbird update 115 I have multiple crashes & black screens, before this it was very stable. I have been using this since 2015 I think with little problem until now. If nobody else is having problems with 115 perhaps I should just use windows restore to go back to Dec 10th 2023. The only alteration to settings I made to try and fix it was to untick "use hardware acceleration when available". It made no difference.

Apparently the latest Thunderbird update is causing our Windows 11 print spooler to stop. I've seen this problem talked about elsewhere but have not seen a solution. The spooler has to be restarted, otherwise no app/program will print, since only Print to PDF is then available. This is making Thunderbird almost useless to us. Help.

I am using Thunderbird v 115.5.1 on a Windows 10 system. I am using an "@hotmail.com" email address. I seem to be able to receive emails just fine, but face an issue sending out emails. When I press "send", it gets stuck on "sending message" for quite a while, then I see the error message:

=

Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.office365.com timed out. Try again.

=

My SMTP settings: Server Name: smtp.office365.com Port: 587 Connection Security: STARTTLS Authentication Method: OAuth2

Appreciate any help! :)

Thunderbird will not open. the error message is: "Thunderbird is already running, but is not responding. The old Thunderbird process must be closed to open a new window." Pressed the "Close Thunderbird" button, but no response. Checked Task Manager and ended the Thunderbird application...still no change. Uninstalled Thunderbird and downloaded .exe file and installed...still the same error message. Rebooted the computer...still not change. Can you please assist with this problem. Thankyou I

Не отправляются письма ни из одного адреса через приложение Thunderbird. SMTP протоколы настроены правильно. Один из адресов использует стандартный протокол mail.ru, но письма тоже не отправляются. При этом входящая почта доставляется в нормальном режиме. Если зайти в почту через браузер, письма абсолютно нормально отправляются. Как решить данную проблему?

Good morning I have updated Thunderbird to the lastest version 115.6.0 (64-bit) on my Mac with Ventura 13.3.1 (22E261) and now I can not see my mailboxes and folders. Have tried everything - nothing works. Rest bookmarks work. Contacts and other functions. I can create and send letters from any of my mailboxes, I can search letters in all mailboxes in search field, but I can not see on the left bookmark nothing - empty list of mailboxes. I have download the program again, reinstalled, changed Thunderbird file in Programms - same thing. Please help.

Thunderbird is using 20-25% cpu and is very sluggish. (This is a relatively new problem - within the past 4 months).

I have two gmail IMAP accounts and one POP account. All show about 30-40K messages. I am working on deleting messages from the servers and local archiving thinking that maybe the problem is with synching or compacting(?). Anything else to focus on? Is there a way to tell, or place to look for what is consuming so much cpu?

Re-running in troubleshoot mode with add-ons turned off does seem to help a little, but it's temporary.

Thanks

George Redden Idaho

Unable to start -> Side-by side configuration error message Unable to uninstall -> Another Message says there is an unfinished thunderbird update, must restart pc. after restart, no update starts. back to the same situation. Unable to Re-Install -> Downloaded Installer, but installation gives the same "unfinished update error"

I already copied the "Thunderbird" Folder from the "AppData/Roaming" Folder. Is this the correct Data Backup so I don't loose my emails?

Please help.