My email provider operates a Microsoft Exchange server through which I send and receive email, using Thunderbird (on Ubuntu 20.04 LTS). I do this both on a desktop computer and on a separate laptop.
Everything works alright, except for the synchronization of message tags. If I tag an email in Thunderbird on the desktop using the '1' key, then this tag does not show up on the laptop and vice versa. Fortunately, this kind of tag synchronization does work on other email accounts that I have.
Is there a way to get tag synchronization to work through a Microsoft Exchange server? (Assuming that using another email provider is not an option.)