I ended up setting up a postal server on my vps (see here). Their docs are pretty easy to follow through and it’s probably the cheapest option (assuming you already use the and have a domain).

I hate to spoil your fun but IRs are made to be written by programs and read by programs.

My understanding is that the company would be regulated by CRA and not the developer. However, that does not stop the company from pushing the developer for CRA compliance.

I would really appreciate an ELI5, or some examples. For example, would lemmy be regulated by CRA? What about lemmy instances? Is there a difference if there is a fee or a recurrent donations?