Operations being reverted

[hbarel]

I've been using Davmail for years now with M365, but there is one phenomenon that puzzles me: when performing an operation on a message, the change is often reverted with no reason, for example: I mark a message read/unread, it makes the change but then reloads the message without the change. Or I can delete a message and after a second it will come back, as if deleted and then reloaded. Sometimes messages disappear and then reappear without an obvious reason.

On an unrelated note, as I also try to improve performance all in all, I saw a cache setting:

# Enable message caching davmail.cacheMessages=true

# Set cache directory davmail.cachePath=/var/cache/davmail

...but it seems to have no effect. (I'm not sure if Davmail has a cache at all.)