I don't know. My dad is an "average" user running Outlook as client, and he's currently complaining all the time because for some reason at least every second W

I don't know. My dad is an "average" user running Outlook as client, and he's currently complaining all the time because for some reason at least every second Windows 10 update wrecks the performance of Outlook so hard it sometimes takes minutes to start and upwards of 10 seconds to open an email. Not to mention the occasional crash. I'm glad Claws mail exists; an ancient client but the only graphical one I could find that's actually fast and lightweight. Although Mailspring is pretty good as well and is not quite as slow as one might expect from an Electron app. In the end I am really glad I have no need of more "enterprise" features in this area.