I use Cloudflares email routing.
Point my domains name servers to Cloudflares and enable email routing. I can then create any email address in that domain and have it forward to any of my email addresses. Works great when signing up for accounts. The only thing you can’t do is fire off email FROM said email address
Edit: can to can’t
Sorry for the late reply!
Here are some of the rocks. A big pile. An example of the breakable rocks and the “real” ones
https://postimg.cc/gallery/LqJ807k