Just run your own mail server on a Pi at home and get your ISP to set up a PTR record for you, assuming you are on a static IP. Mox is good and outputs all of t

Just run your own mail server on a Pi at home and get your ISP to set up a PTR record for you, assuming you are on a static IP. Mox is good and outputs all of the instructions for DNS etc.: https://github.com/mjl-/mox https://github.com/mjl-/mox