I recently started having my AI assistant help clean up my email gradually. (Using stumpy.ai for what it's worth.)

The way I do it is every morning we go through recent emails in my inbox one at a time. If I want to mark it as spam, delete it, add it to my calendar, whatever, I explain to the agent why in detail. Over time it builds up an understanding of how I handle a lot of things, it needs to show me less and less, and it handles more and more on its own.

I also told the assistant to check my email on its own once per hour and auto-action what it can. That helps keep junk from building up, and it alerts me via SMS if something high priority shows up (e.g. user reporting a bug).

Point is there was never a point where it just ran for a long time and magically cleaned everything up just how I'd have wanted. I have like 7k emails in my inbox, that wouldn't be practical. But the number is going down now gradually, instead of up. I've had a chance to teach it and let it establish trust that it's doing things the right way. Which feels safer.