Hi All, I have been using Thunderbird with a IMAP mail server without problems until Windows forced me to update to version 11. After the update when I send a message, it is not saved in the Sent box. The recipient receives the mail, but I cannot see it in my Sent box. I uninstalled Thunderbird, restarted the laptop and installed the latest Thunderbird, but still the same. On my older laptop, which is still on Windows 10 and I have Thunderbird linked to the same IMAP mail server, this problem does not exist, so I assume my IMAP mail servers are correct. Will be grateful for any suggestions that might help. Thank you all