TIL that you can use Cloudflare Email Routing [1] to set up free email on your domain. It basically routes from [email protected] to your private [email protected] for free.

So you don't have to pay for Gmail for business until your business makes money :-)

Here is a step-by-step guide [2] by Gulshan Kumar.

[1] https://developers.cloudflare.com/email-routing/
[2] https://www.gulshankumar.net/create-a-free-business-email-with-cloudflare-email-routing/