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I am using Thunderbird version 128.7.0esr on Windows 11 Pro. I moved my Mail folder (and sub-folders) on my local drive. I re-directed each of 4 email accounts to their new sub-folder. The emails are downloading from the email host's POP3 server. New email messages are not visible in any of the inboxes. The counter shows the number increasing when messages are downloading. Global search does not find the new emails. The new emails show when I right click on any of the inboxes and select "Search Messages" (From/Contains."@"). I tried manually removing the Inbox.msf from one account, but did not fix when I restarted. I tried the Repair Folder button (right click Properties on Inbox folder), but did not fix. I know the emails are on my computer, but I cannot get to them without the very cumbersome "search messages" function. Suggestions?

Background I wanted to give Thunderbird a shot because I really, really got tired of Outlook and their shenanigans. About 2 months ago, I tried it a first time and had an issue that prevented me from sending emails from my Hotmail email accounts. I gave up after a week of troubleshooting.

Outlook has come up with more bugs and shenanigans, so I tried again, convinced that there had to be a solution. And I found one. If anyone is interested, I was getting the error "Login to server outlook.office365.com with username <...> failed", and the way I fixed it was by replacing "hotmail.com" with "outlook.com" in the server settings. However, not all is fixed yet.

Current problem I noticed that the messages in my Outlook mail (other than the inbox) are not syncing properly. When I start TB, it appears to sync folders because I have seen new emails in subfolders already. However, if new emails come in while TB is open, it only syncs them if they are in my inbox.

I have looked around already and found that when I right-click that email account and I choose "Subscribe...", it presents me with an empty list and I can't see or enable/disable any folder subscriptions (refresh does nothing). This is strange because of 2 reasons: 1. All my subfolders are there, and they seem to sync when I start up TB. But even if I immediately open the subscribe window, the list is empty. 2. I have a total of 4 email accounts configured, 2 Outlook and 2 Gmail. All except for 1 Outlook account show me the list of folders in the subscribe window, so that made me think it was something in my Outlook account settings. However, nothing I can find there seems to be helpful.

Does anyone have an idea on how to fix this? I'd rather not close and re-open my TB app each time I want to check for new messages. I really want to give TB an honest chance but it's not making it easy for me to like it right now.

I've just installed Mint 22.1 and migrated my .thunderbird folder from another Linux PC, which was running Thunderbird 128.7.0 esr. The installed version of Thunderbird on the Mint PC is Thunderbird for Linux Mint mint-001 - 1.0 Everything has transferred without an issue, all of my folders are there, the calendar entries are fine, the only problem is that web links in the emails do not open a browser tab. I can copy the link location, then 'paste & go' but highlighting links does not do anything, other than show the URL at the bottom of the Thunderbird window.

I have tried the 'Troubleshoot Mode' but that makes no difference. At first I thought it may be some kind of security mode on Mint, but I tried the version from the Mozilla repo and that made no difference. I have also posted on the Mint forum, but have no replies there.

Two mailboxes are involved. Mailboxes ar configured as POP3. The problem started just a view days ago, as far as I can see shortly after 128.7.0.esr. Currently 128.7.1.esr is active but the problem stays.

I have no clue where to look.

App Version: Thunderbird 128.7.1esr (64-bit) Operation System: Linux Mint Xfce 22.1 Xia \n \l

How to make Thunderbird new message (email) window to appear with blank "From: account" field? I want this to force myself to always choose which account via the email to be sent!

I'm not afraid to edit config files if only that way it is possible! Or download addon which can help me in this!

PS. I too many times sent emails via my personal account instead of my public account which is annoying but it has been happening for more then a year to me so I gave up I ever manage to get used to check check which account is in the "From:" field. Please help! :'(

Thunderbird Android v8.2 / Pixel 6a / Android 15 (Feb 2025 security update)

IMAP Push in use for Inboxes only on 3 mail accounts (2 Comcast; 1 Gmail)

  - Enable Push: "on"
  - Enable sync: "off" (for Inboxes; on for all other mail folders)

Installed TB in November 2024 and experienced no problems until recently. Beginning in early February 2025, inbox push/update stops working every ~24 hours. If I go to Android settings and force stop TB, clear cache, then restart TB, Inboxes immediately sync with servers and again function fine for approximately 24 hours (not exactly).

Using TB for 3 e-mail accounts. Only the 3 Inboxes have push enabled (and sync disabled). All other mail folders on each account set to sync every 60 minutes. This configuration was set up on initial installation and worked without issue until recently. The only system modification made in this timeframe was installing the February 2025 Android security update.

Anyone else experiencing similar issues? Any suggestions?

Thank you.

I understand that the working direction of syncing in IMAP is from the mail client to the server.

In a specific given situation, I would like to invert this working direction. I'm almost certain this can be done, but wonder how exactly?

I lost my address book and local folders when 128.7 got installed. I have regular file backups of my computer and have been able to get my address book restored. However, I am unable to find the subfolders under Local Folders. Should I look under AppData in Local, LocalLow, or Roaming?

I have suddenly lost emails from 1 December to 12 February and many of my folders are now empty. I backup my computer nightly so I am able to go back up to six months ago. I have tried exchanging the profile folder in Appddata > Roaming and Local but when I start Thunderbird it looks like a clean install with nothing.

Is there anything else I need to bring back from my backups other than the profiles folder?

I have just got a new windows 11 pc previously on my windows 10 pc when i typed messages it would capitalise first words of a sentence and after a full stop. I don't seem to be able to get it to do so now.

I am unable to print emails - the dialogue hangs at print preview screen where nothing is displayed apart from the circling wheel. Same for all accounts.

Fedora Linux 41 / KDE Plasma 6.2.5 / Graphics platform Wayland / Thunderbird 128.6.0-1.fc41

Thunderbird will not print to either printer (Epson Workforce Pro - WF-5110 or HPLaserJet P2015dn) rendering Thunderbird impossible to use fully.

Printers always:

• print a test page successfully
• print in all other apps including LibreOffice
• print web pages
• print same emails using Kmail client (installed as 2nd client if only to print emails as workaround)

Print using system dialogue does not work from Thunderbird (most options greyed-out including Print).

• reinstalling printers makes no difference
• reinstalling Thunderbird makes no difference

Cause: configuration setting or permissions issue or....

I'm out of options and can't think of anything else to try. As a long-term user of Thunderbird (>12 years) I'd really like to get this working. Thanks, Ric

Bonjour, lorsque je souhaite envoyer un nouveau message, Thunderbird affiche un message rempli de signes. Comment résoudre ce problème ? Je vous joins une image du "nouveau message" qui s'affiche. Merci pour votre aide.

____________ Hello, when I want to send a new message, Thunderbird displays a message full of signs. How to solve this problem? I attach an image of the "new message" that is displayed. Thank you for your help.

I have an address book set up with First name, Last Name, email address. When I start typing a person's name in the 'To' field of a new email it only displays their email address. Can I have it display the 'First and Last' names instead?

I had many email folders set up to save incoming emails of importance and they all got emptied at once during the transition from one internet server to another. I haven't been able to find them anywhere since. What happened and how do I prevent a repeat?

Thunderbird is showing a message count as one more than number actually displayed in the inbox. This is occurring for only one of four email accounts. I did search the forum but didn't turn up anything similar. I tried clearing the startup cache under Troubleshooting Information. I also restarted Thunderbird several times. If I select all messages in the inbox, the selected number is always one less than the total count. I tried deleting 3000 messages from the Trash file followed by Thunderbird restart. A daily machine cold restart has not changed the situation. I always empty the inbox before powering off for the night, but after all messages are deleted, the message count still shows 1. I have noticed the problem for about the last week.

The message count discrepancy doesn't seem to be causing any other problems. I just worry about anomalies. Any ideas? Thank you.

I have followed the directions in document: https://support.mozilla.org/en-US/kb/hyperlinks-in-messages-not-working#w_problems-with-received-or-saved-mails

As of this morning, links in emails across accounts in Thunderbird do not open in a browser on my system. I can right click/copy and paste into a browser, but the linking between apps seems to be broken.

I have followed the document above, tried different default browsers, and restarted Thunderbird numerous times. I have also started Thunderbird in troubleshooting mode (hold shift at start) with no change in behavior.

No system config changes last night leading up to this new behavior.

Please advise.

Windows 11 23H2 Version 10.0.22631 Build 22631 Thunderbird 128.7.1esr (64-bit)

Suddenly this morning, I can't send an email through Thunderbird, but I can through my email service provider's platform. No settings have been changed and I have the most up to date version.

I get this message:

"Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) (my account) failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again."

I am not at all tech savvy with this type of thing, so I need step by step, easy instructions, please. Thank you!

I have recently begun receiving the following error message from Thunderbird: "Server imap.earthlink.net has disconnected. The server may have gone down or there may be a network problem". It doesn't happen constantly, but at least half the time when reading or moving messages to a different folder or when deleted messages from trash. Examining Earthlink directly from a browser shows that the action issued under Thunderbird has occasionally not been executed. Earthlink Support says everything is OK with them. (I suspect a timing issue, but do not know how to proceed.)

When I install Thunderbird on my PC not all of my folders are syncronized. When using Android all folders are syncronized?? Any suggestion to get all folders over to my PC? Windows 10 pro on a HP Elitbook.