Maybe not what you're looking for, but I have a catchall alias setup using Cloudflare, so any mail @mydomain gets sent to my Gmail address. I can only receive

Maybe not what you're looking for, but I have a catchall alias setup using Cloudflare, so any mail @mydomain gets sent to my Gmail address. I can only receive mail, but having my own domain is useful because now I can move without telling everyone a new address. For my websites, I use Zoho's free mail plan + nodemailer for sending automated password reset emails and the like. It works pretty well.