At home, I use mail.app on macOS, and it works fine — so long as you have a machine that is always logged in and running the rules. At work, I am forced to use

At home, I use mail.app on macOS, and it works fine — so long as you have a machine that is always logged in and running the rules. At work, I am forced to use Outlook, and it works okay, but includes server-side rules you can use so that you don’t always have to be logged in. Have you tried Outlook for mobile?