New Outlook is good, both for yourself and 766 third parties.
@Shrigglepuss I wonder how up to date that 766 number is… just one external party would make me uneasy, 766 makes me want to scream…
@Shrigglepuss BTW, is that for the Outlook Web Application, or the Outlook app? Because if it is the latter, I want to send them to the GDPR faster than you can say cheese…
@juandesant It's the new app they're beginning to roll out to everyone to replace the old Mail and Calendar app (and regular Outlook I think, but not looked too deeply into it yet)

@Shrigglepuss OK, but this is Windows only for now, right? Using Mail.app and Fantastical on macOS because I hate the new Outlook with a passion…

It is a pity the old Outlook Express for Mac (which was based on the Claris Emailer codebase, if I’m not mistaken) was lost…

@juandesant I thiiiink the new Outlook is just a progressive web app under the hood so probs also coming to macOS too
@Shrigglepuss @juandesant The New Outlook is a web app and that's why you see that window: it puts a lot of data on Microsoft's servers. Probably it will substitute the old Outlook for Windows and Mac but that depends on reactions by corporations: they hate radical changes in UI and like to manage their data.