Thunderbird Community Forum

I'm experiencing an issue with Thunderbird that started unexpectedly. Whenever I try to access my email, I get a warning message saying that "The site certificate is not valid for this server. Someone may be trying to impersonate the server. It is not recommended to proceed."

I'm not sure why this error has suddenly appeared, as everything was working fine before. I haven’t made any changes to my email settings or installed new software recently. Has anyone else encountered this issue or knows how to resolve it?

You have recently released version Thunderbird 128.1.1 in which you have changed the Compact View so that it is effectively no longer a Compact View, because the spaces have been increased between the Folders in the sidebar folder pane. I have been using Thunderbird for a couple of months and really liked the Compact View but now it has been spoiled. I don't understand why it was necessary to change this, and would be grateful if you would please revert the Compact View to how it appeared in version 115

Kind regards

Brian Lawrence

Hello,

Thunderbird keeps crashing. That is about all that I can tell you. It started this morning (/when I got to work I fist noticed it). I have not used any add ons. I have been submitting crash reports. Crash data avaiable on request. I uninstalled and re installed, same result; crashes immediately on start up.

Please assist.

Thank you

Toll

First off you should warn that this version changes your profile, so there is no going back. I installed it and have lost ALL of my accounts and had to start from scratch. It took me back to the beginning. I hate the interface, too cluttered, to busy and generally sucks. I am thinking of dumping thunderbird at many, many years of using it.

Hi everyone,

I've been experiencing weird troubles with some messages. When I click a message in the list to open it, sometimes the message opened shows parts of other unrelated messages, including incomplete content, lines of base64 encoded strings, boundary lines, partial html code, you name it. Looks like sometimes the program just mixes valid headers with parts of other random messages, starting on random lines. Sometimes the message content shows only the final line of the code of another unrelated message (the boundary end).

I'm attaching two captures to illustrate the issue. Only one folder is affected (well, unluckily for me, is the INBOX...), so I guess that file is the one broken.

I've tried the "repair" option on the affected folder, to no avail. Sometimes looks like the problem is gone, but then another message that was ok before shows up broken.

Thunderbird version is 128.1.0esr (64bits), running on Windows 11 Professional (23H2). Profile size is 30 GB, INBOX database file is 16.757.000 KB by now, with 17.445 messages. I'm using IMAP as server, and no message is broken on the server (I've checked them on the webmail service). The machine is using a SSD, NVMe kingston RBUSNS8 239GB, if you want to know... It's ok AFAIK.

 If you need any other information regarding this, please ask and I will gladly provide it. As you may imagine, this issue is driving me mad! 
   
 Thank you for any kind of help you can provide to fix this weird issue.

Hi Guys, I wonder if you can help . I have had Monzilla Thunderbird App for some while , primarily used for email, and access to my email account with Microsoft and has always been a bit of a pain to say the least. That I fear is because it was never set up properly by myself in the first place.

However, at the moment I can't receive any email from my PC ......."bards@btconnect.com " unless I sign in via a webpage. However, access via my smartphone using supplied Outlook email app, no problem.

So I am hopeful that you guys can help me sort out my PC access once and for all.

The current problem has arisen after receiving a forced donation / subscription page from Mozilla having made my donation I still do not have access to my email and folders.

Brief history: i. Originally PC access to account via Monzilla working fine, (donations made at intervals to Monzilla). ii. Microsoft then changed security systems and servers and with current setup at the time I couldn't get access to email incoming or outgoing ( problem with Imap / PoP3 servers). iii. Fix provided by Monzilla with new account denoted as .... bards@btconnect.com (OWL) whatever OWL stands for I do not know, (annual subscription required). iv. Even with the use of this get around , I still had problems sending mail this I believe was a problem down to default passwords and old server settings. (confliction between default settings and original account settings and use of OWL ? ). v. As mentioned above the current problem has arisen after receiving a forced donation / subscription page from Mozilla having made my donation I still do not have access to my email. problem with server settings again. Don't know what's going on ? and I am thoroughly confused and would appreciate some help getting things back on track. Just in case I have some difficulty accessing this platform and this forum / help page it would be much appreciated if any help could also be sent to the following email addresses bards@btonnect.com and grahambardo@hotmail.co.uk Many thanks

Hello,

I don't understand the efficacy of the new "No Message Found" alert.

I have received many messages every day for many years and have never a problem.

Thank you !

I accidentally deleted an email account through Tools- Account Settings - Account Actions - Remove Account.

Is it possible to restore this account and its associated sub-folders.

I have installed Thunderbird on a separate PC and restored my latest backup, which unfortunately is 4 months old, meaning that I am missing 4 months worth of emails.

Might it be possible to link to files/folders containing my messages prior to the removal, perhaps by recreating the email account or might there be some other method in which I could achieve this.

Any thoughts you might have would be VERY welcome.

Kind regards - Deirdre

PS. We are using Thunderbird Version 128.0.1esr Build: 20240717233102

I've been a Thunderbird user for years. I have no idea what they changed recently, but it's incredibly, incredibly SLOW, almost to the point of unusability. Even something as simple as deleting emails.

I usually do these in chunks -- select multiples and delete. We're not talking about hundreds of emails at at time here, just maybe 5-15. Select them all, hit delete, and it should take just a couple of seconds to delete the messages. It did, in the past. But lately, it's taking so long that I could leave and make a sandwich, and when I come back, maybe it will be done. Maybe it will still be working, though, or maybe it will have locked up because it was taking so long.

It's pretty difficult to get work done at this rate.

I supply software that uses TB to send emails with an attachment (via MAPI - an invoice) I have a number of customers for whom this has stopped working. I tested all of these with the usual fixes. The app has full access to the folder containing the file. The app is set as administrator and is inside the firewall. I have set default mail app to TB. TB is set to check as default on startup. Yet windows keeps saying we need to define a default email client. One customer solved the problem by buying a new PC. I have another customer who has this problem on a new PC. There may be a common denominator in Microsoft Office which on loaded onto the PC's. If that is the problem then that is Microsoft denying access to TB? Has anyone had this problem and can suggest a fix I would be grateful.

Steve Hall

I am getting a number of messages "Sending of the message failed. SSL received a record with an incorrect Message Authentication Code. The configuration related to mail.tobymanning.co.uk must be corrected" when I send an email

We have been working with our server, Blue Mountain, for weeks now trying to correct ever shifting email issues: can't send or receive emails on laptop, can receive on phones but not send, then can't receive but can send. Then can't do either. Currently I haven't gotten an email on my phone since August 2, the last item there is a box that says "Correct credentials needed. Enter credentials for arimor@gorge.net." My husband's last email is a Newsbreak -- from a week or so ago. So we can't send or receive from laptop or phones, but in our last contact with Blue Mountain they said it must be a Thunderbird problem. I fervently hope it is because then our problems might be solved. Can you help?