I use Thunderbird 45.7.0 as mail client on my Ubuntu 16.10 for my web-exchange account. The first time I set Thunderbird up, all folders are synchronised. However, if I create new folders in Web-exchange with web-browser, the new created folders will not be downloaded to Thunderbird. What was the problem?
server type is IMAP/SMTP, and connection security is set to SSL/TLS.