Thunderbird Community Forum

For no apparent reason the calendar display has been filled with multiple columns of light and dark blue, side by side and extending top to bottom. This pattern starts in The August 31st column and continues up to and including September 7th. After that the display goes back to normal. Does anyone know why this has happened and how to fix it? Thank you.

I have two Charter/Spectrum email accounts (domain is charter.net) set up via IMAP in Thunderbird (latest version) on Windows 11 Pro (also latest version, August 2026 CU is installed). They no longer update; at the moment I see no email in either after 8/27/26 around 5:00pm EDT. Confirmed via Web access there are emails after this point (a couple dozen at least, in each account).

Most recently I've tried repairing the Inbox mailbox for both. No help. Because I did that, Thunderbird now shows no emails in my Inbox even though it'd had hundreds of them before.

Note, I'd noticed the same problem a week ago, had tried fixing it at that time by removing both accounts and adding them back. They worked for a few days but then stopped working again on 8/27 as noted above.

Another oddity: If I go onto synchronization settings (right-click on account name then Subscribe), it shows no folders available to subscribe to. The folder list is empty and the Refresh button is grayed out. It shows it looked up and connected to mobile.charter.net at the bottom of the dialog, so I'd expect it would have retrieved the list of IMAP folders, but apparently it got nothing. And it refuses to get anything.

I assume I can remove the accounts and add them back, but why should this be necessary every few days? Seems bizarre. Thunderbird used to work with these accounts very well but now it seems to have blown up. Who decided this is how IMAP works?

A couple nights ago I updated from 140.13.0esr to 140.14.1esr, then for haha's, I checked for updates again and it took the big 153.1.1esr 'Meadow' update, now it won't play the selected email notification sound that it has been playing for the last 20+ years. It will play the 'Default system sound for new email' or any other sound file in my Media folder, old ones or brand new ones I put in there, but it will not play the one that it has been playing for the past 20+ years. I delete it and add a new copy of it and it will not play that one .wav file, plays everything else, but not that one.

This started happening a day or so ago... When I type part of an email address, Tbird shows all email addresses starting with it. Now the length is as long as the screen.. Any ideas? Thanks.

I am unable to send email. I either get this error message: 'Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) netsol-smtp-oxcs.hostingplatform.com timed out. Try again. The settings are: Description: Outgoing Server Type: SMTP Outgoing Server Server Name: netsol-smtp-oxcs.hostingplatform.com Port: 465 User Name: gene@genemaas.net Authentication method: Normal password Connection Security: SSL/TLS Successfully established a secure connection to netsol-smtp-oxcs.hostingplatform.com:465.

I get the same error using Port 587 and STARTTLS

I have also been asked for a password to connect to: netsol-imap-oxcs.hostingplatform.com I have never needed a password before and I do not have a password.

I do receive emails.

Hello All, I'm desperately trying to set my uninstalled and reinstalled Thunderbird to have Body Text as default. All suggestions online are outdated and don't work since suggested places in settings and account settings are not existing anymore. I have a machine at home with Thunderbird and it has Body Text as default. How on earth can I get there? Thanks

A new one today. Some but not all emails are downloading, in that they seem to be in the IN box but all they are showing is the date - no content or subject. I am a btinternet user. If i check the account online, the conent is there. Have just had one such from Mozilla giving me a sign in code. I'm not quite sure where to sign in with it though as I appear to have already signed in automatically. Oh dear! Carol

Some of the messages in my inbox show the wrong information in the "from" and "correspondents" columns. Is there a way to get the correct information from the message to be displayed?

I have a profile set that uses IMAP and need to change this to POP. I have tried changing the settings and tried creating a new profile by exporting folders and files but nothing is working correctly.

One problem I have is that in the IMAP profile I now have a second email address that is the same address name but is a POP setup. This is confusing. When I use the POP email to export and then import into a new profile I again get two email addresses in the folder panel of the new profile and one of them does have folders but they are empty.

Below is a screen shot of the original IMAP Profile. The upper address has folders but they are now blank because I pasted them in the lower address. I have tried selecting/highlighting the lower address for exporting but when I do I get the two addresses but the folders are empty/blank.

Thank you for any help!

Rick