I do prefix+12RandomLetters@blahblah and every potential sender gets it's own random address. Then I use filters to move mail to predefined folders. What's left

I do prefix+12RandomLetters@blahblah and every potential sender gets it's own random address. Then I use filters to move mail to predefined folders. What's left is spam. If a mail comes in from an unknown sender to known address I know that the address is compromised. Ideally I would like to plug my password manager to generate an address and automatically add email filters in place. Although I was thinking about a service that would just give randomalphanumeric@example.com for all its users, so they would be on the same host and no connection between addresses could be implied. It could or even should be receive only.