Thunderbird Community Forum

Mozilla Thunderbird does no more open. It informs only "is looking for mail.columbus. Nothing happens then. I cannot close the program with my mouse. Nothing happens. I only can close the program by pressing the Close-button in my computer. Then it informs, that Mozilla Thunderbird prevents the closure. It asks if I want however close the program. I answer Yes, and then it will close.

What shall I do to open the Thunderbird again and see my messages. I have ASUS Vivobook.

Sorry my bad English!

J. Holma

The idea is to get the messages from certain sender in color in Thunderbird, so that they can definitely be distinguished from other gray messages.

I have some idea how to do it, but there are a lot of details that you can't find information about on the internet or youtube. 

(140.12.1esr free version.)

Basically, I'm stuck here.. All other information about this downwards would be necessary

Filter messages when [ v ] Perform manually (? what does it mean) [ v ] Fetching new messages [ Filter before spam] or [Filter after spam] (??)

      ( the above mentioned were already ticked )

[ ] Archiving [ ] after sending [ ] periodically, every 10 minutes

Thank you

This has been translated from Finnish to a translation machine

Hello,

I'm experiencing an intermittent issue when forwarding emails with attachments (large and small) in Thunderbird on Windows 11. The error message reads:

• "Sending the message failed. An error occurred while attaching [filename]. Check that you have the right permissions to read the file."*

The issue is not consistent — the same message can often be forwarded successfully later (as in the next day).

• • Environment:**

- Thunderbird (latest version) - Windows 11 - IMAP account - Windows Defender active

• • What I have tried:**

• • Suspected root causes:**

- Windows Defender or other AV software briefly locking the temporary file while Thunderbird tries to read it during forwarding.

Has anyone else encountered this, and is there a more permanent fix? Is there a known bug related to this behavior?

Thank you.

Saisin Avattua ja Lähetettyä viestini uudessa sähköpostini :marketta.jokinen@outlook.com minulle HP-koneelle asetettiin Tänään Reititki 4G-( operaattorini tela lopetti3G)