What's best practice here? Set up filters to route them into a special folder? You never have to read them, but you've kept them in case you need to go to the police and courts?
In my case, once the stalker started hitting my work email, my employer could step in and filter & review the messages for me (yeah, that was actually someone's job).
I guess for your own sanity you should get a trusted third-party (like a friend) to check those messages for you.