Indeed - I have considered switching away from Google for these reasons but cannot find a provider I like more, and do not want to run infrastructure like this

Indeed - I have considered switching away from Google for these reasons but cannot find a provider I like more, and do not want to run infrastructure like this personally. Two killer features are: 1: catch all (office 365 did not have this when I switched away from them in 2014) 2: automatic categorisation which no one else seems to have. If anyone knows a provider that has these I’d be most interested in hearing about them!