Thunderbird Support Forum

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?

Start new Windows session. Start Thunderbird and works OK. Shut Thunderbird down and try to re-start during same Windows session and it will not launch. Reboot Windows and try to start Thunderbird and works OK. Alternatively, going into Task Manager there will be a number of Thunderbird processes running. If I manually end them all (while Thunderbird is NOT active) then I can restart as normal too. This all began with 124.0 Beta 1. Never had the issue prior.

Also, Thunderbird crashes if restarting within the app. By this I mean clicking the X it appears to close (excepting those persistent processes running) but "Restart Thunderbird" such as to launch Troubleshooting mode or from the "Restart to update Thunderbird" config crashes the app with 100% consistency.

When trying to send an email, I received an error message saying that my incoming and outgoing email in settings must match. They do! Still cannot send an email. My ISP says the problem is on your end - something to do with the routing after thunderbird was updated. They said quite a few people are having the same issue. Please fix this!

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.

My email is not receiving and cannot send emails. A message shows up saying that the server has been disconnected. How can someone who has no computer expertise fix this problem. My business emails come to this email. Should we get rid of it completely? We Need Help Fast. I've been posting messages but nobody has responded yet. Im not very familiar with this system and we Need Help ASAP! Please Help!!!

Here in Jan 2024 suddenly TB will no longer connect to any hotmail or outlook..it says I have to enter a new password but I have not changed my password and can get onto them if I go directly to that site. Any suggestions?

Thunderbird runs slow...ie when I type an email I can easily type faster than thunderbird will accept characters....(this does not happen in other applications)...this happened about a month ago, and then stopped ( I have no idea why)...but the problem is back. I am running Ver 115.10.0 build 2024012173147. Rebooting windows 11 makes no difference.... I just tried to enter Troubleshoot mode and thunderbird stopped responding....Top line says Mozilla Thunderbird (Not Responding). Thunderbird is connected to my gmail account. ...and I run IMAP....with 'store all messages on the computer', but thunderbird wants to load every email from the server'

Any advice would be appreciated Rick

I switched my email host and am trying to change the account settings in Thunderbird. When I change the server name a popup appears and asks me to restart or cancel. It doesn't let me continue to change any of the other server settings. Selecting either option changes the server name back to the original.

So I delete the email account and its smtp server. When I restart they both reappear. When I add a new email account and smtp server, it disappears when I restart.

When I select Help/Troubleshooting Information the deleted accounts are gone from under Mail And News Accounts. When I restart Thunderbird, the deleted accounts and server returns.

I changed the settings for a different email account that is on a different host last summer with no problems. Thanks

Thank you for your help! I have been using Thunderbird for 5-6 years now and just last night any emails I send to my Gmail contacts gets bounced back. They can send me emails but I can not loner send them emails. I receive the below message which it looks like the issues is DKIM and SPF. I am not tech savvy so I have no idea how to fix this. Any help with be MUCH appreciated!!!

<<< 550-5.7.26 This mail has been blocked because the sender is unauthenticated. <<< 550-5.7.26 Gmail requires all senders to authenticate with either SPF or DKIM. <<< 550-5.7.26 <<< 550-5.7.26 Authentication results: <<< 550-5.7.26 DKIM = did not pass <<< 550-5.7.26 SPF [cypressop.com] with ip: [216.55.147.161] = did not pass <<< 550-5.7.26 <<< 550-5.7.26 For instructions on setting up authentication, go to <<< 550 5.7.26 https://support.google.com/mail/answer/81126#authentication z26-20020ab0681a000000b007cd9db0d28asi804223uar.194 - gsmtp 554 5.0.0 Service unavailable

Hello!

I added all my office emails to my home computer. At home they all work perfectly to receive but not to send. The server configurations are the same as at my office and they work perfectly there.

The name of the outgoing server is smtp.oedim.com and I have already used ports 25, 587, 465 and 2525 to test. The message I receive is the following:

"Sending of the message failed. An error occurred while sending mail. The mail server responded: Unable to relay to egon@oedim.com. Please check the message recipient "egon@oedim.com" and try again."

I used the email I was sending from as the recipient, but this error happens for any existing valid email. I've tried many of them.

Can anyone help with this problem?

Thank you very much, Egon

First thanks for helping. I'm an old man with computer knowledge that ended with a computer science degree in 1984 which I haven't used since. So I have a general idea but it's forty years old... I'm using Thunderbird 115.7.0 (64-bit) on a 2021 Dell Alienware computer with the 11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz 2.30 GHz processor and 64 GB of RAM using Microsoft Windows 11 Pro Version 22H2 OS Build 22621.3007... I also have McAfee LiveSafe Virus Protection software installed: Version 114.212 Release Name 16.0 R114 Affid 20327 Antivirus Build 1.1.2569.0 Content Creation Date 01/25/2024 Content Version 1665.0 Secure VPN Build 9 Version 1.14... Here's the problem... When I try to download my emails the computer goes into super duper slow motion. I also have a wired wifi connection that's the fastest Spectrum offers and almost nothing else shares it so it's usually very fast. I also get Thunderbird error messages (i should have screen shots sorry) about not being able to read something or other or write to some folders and perhaps needing permission. As an aside, I'm the only user of the computer so no permissions are ever needed. Also, this only happens when I first turn on the computer and there are a number of emails to download. Once I've downloaded the bulk email and I later check or it automatically checks, it will download the one or two messages slowly but without errors... Thanks again, I hope someone can help... Take care...

I have been using Thunderbird for years to access several @charter.net email addresses, lately administrated at Spectrum, which took over Charter. Everything was working normally until today. I can still receive emails, but when I send, I get an error message asking for a password: "password required for outgoing SMPT server" Manually entering a password in that error message box doesn't help. Spectrum support is not helpful beyond confirming that my email sends and receives normally as long as I access it on their website. Three clues: 1) Spectrum recently announced "new and improved" email. 2) One customer service person described my email addresses as "legacy". 3) My gmail address sends and receives just fine from Thunderbird as usual. Any insights appreciated! Thanks!

Supernova has been named correctly. So far it has "exploded" all over. Once again I can not click on an email link and have it open in Firefox. (1) Quick filter doesn't seem to work very well any more. It might give me what I am looking for, but when I close it quick filter, it starts putting back messages very slowly one at a time for minutes. (3) I am getting fairly constant messages that it can't write to disk because the disk is full or it doesn't have permissions (both of which are wrong). (4) I have a sub-folder that contains 2022 emails and it has started listing those emails as part of the current inbox and no longer shows them as part of the 2022 sub-folder. (5) And finally it has crashed several time.

This all started when I let the update for Supernova install and it just keeps getting worse. Any suggestions?

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.

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

I have 4 email accounts setup. Only one is in use at a time. There is one personal and three tied to 3 volunteer organizations I work with. A few days ago I began getting a Send Message Error window ( I assume generated by Windows) when I attempted to send a message from any of the accounts and thereafter I received a Thunderbird Unable to connect to your IMAP server error message.

My ISP advises they are not restricting connection numbers and this is a Thunderbird issue. Nevertheless, following the Thunderbird Message instructions I reduced the number of cached connections under Advanced by half. This made no difference. There is no one with my ISP who will discuss Thunderbird or seems to know much about it and they want me to use their webmail, which sorely lacks the sophistication of Thunderbird.

Read all of the relevant messages I could locate on the Thunderbird site on the issue and tried most of the suggested solutions, to no avail.

During the solution efforts, all INBOX mail in my primary personal account disappeared, but the rest of the folders are OK and so are those in the other accounts. It is in the ISP IMAP webmail folder.

But when I try to email my ISP I get the Unable to Connect to your IMAP server message or the Thunderbird error message. No outgoing message.

I did look at the Proflies link which I see references the ISP IMAP account. It shows 0 messages and 1.1 GB which I assume is the size of the INBOX file so assume there are messages and the 1.1 GB are the messages, safe but untransferable to Thunderbird. When I clik on Repair Folder the link attemps to go to the ISP IMAP account but the Thunderbird connection error message reappears shutting the process down.

When I just recently upgraded (32 bit) to 115.7 from 115.2 a number, not all, of the folders under my personal account also disappeared (but didn't touch the other accounts). They remain on the ISP webmail site (Zimbra). Could not find a way under Thunderbird how to reimport the missing folders from the ISP webmail account to Thunderbird so have been moving messages I need to save to the folders via the webmail site then reentering Thunderbird.

If this is unclear it's because I am so confused now that I frankly don't know where I am, way way above my pay grade! It appears I've done enough damage so quitting and looking for help.

Image of the two messages attached

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! :)

trying to get email - got this error; How do I fix this?????????? Happening last few days.

my email: [edited] @yandex.com

Sending of password for user pizzipie did not succeed. Mail server pop.yandex.com responded: [AUTH] login failure or POP3 disabled, try later. sc=75IVcg0DLKo0_290005_

This is a recent issue. If I send an email with no images and no attachments, it copies the email into my "sent" folder with no problem.

If I send an email with even a small attachment...it sends the email, but "times out" copying the message to the sent folder.

I've checked the account/server settings, they are exactly as recommended. I've changed the sent files to "other"...no difference. I deleted and reinstalled Thunderbird...no change.

Ideas?

I'm just getting started with Thunderbird on Windows 10. To test it, I set up my yahoo IMAP account xxxxx777@yahoo.com using a yahoo app password. It worked fine, so I deleted that account and set up my 'real' yahoo IMAP account, which is xxxxx@yahoo.com, using another app password from Yahoo. This is a different yahoo account, so I needed to get another app password. Again, that account worked fine.

However I then chose to delete that account on Thunderbird and return to using my xxxxx777@yahoo.com yahoo IMAP account, by getting a new app password and following the Thunderbird instructions for setting up an account. The trouble is that Thunderbird is now connecting to my xxxxx@yahoo IMAP server and receiving those emails and folders instead of my xxxxx777@yahoo.com emails and folders. I have uninstalled and reinstalled Thunderbird and rebooted the computer. Thunderbird 'account settings' is correct.

The first tab in Thunderbird is "email- xxxxx777@yahoo.com", and the folders that follow are from my xxxxx@yahoo.com account. Each time I receive an email on my xxxxx@yahoo.com account, it shows up in Thunderbird under my xxxxx777@yahoo.com account.

I'm stumped.

Thanks, David