[Bug] Messages from shared mailbox being copied into the logged in user.

[shymega]

(Cross-posting to issue tracker).

I'm trying to sync my emails with Davmail and isync, and I'm
encountering a strange issue, where emails from my shared mailboxes,
which my main account has delegated access to, are copied to the logged in account's mailbox. I'm on Exchange 365.

It's very strange.

I have attached the davmail.properties. I'm on the latest release, on
NixOS, but I've tried it in Docker too. I've also attached the relevant
sections (main account and shared mailbox, redacted) of mbsyncrc.

I was just wondering what I should do? Is there a setting I should use?
davmail.properties.txt
mbsyncrc-davmail-sample.txt