I use Fastmail which gives you a wildcard catchall alias, *@example.com , but you can do this even self-hosting with postfix, and I'd bet most decent email prov

I use Fastmail which gives you a wildcard catchall alias, *@example.com , but you can do this even self-hosting with postfix, and I'd bet most decent email providers who let you use a custom domain also have a catchall email feature.