I just did the update to 2.0.1 and now my MailScanner screen looks like this:
MailScanner is not installed
Failed to start installation, Error message: {$ errorMessage $}
Could not connect. Please refresh this page.
Installation failed. {$ errorMessage $}
MailScanner successfully installed, refreshing page in 3 seconds…
Winter is coming, but so is MailScanner.
If I refresh or logout and log back in - this same screen shows