I've always done this, but I've run an email server forever so it wasn't any added hassle to have gmail download the emails using pop. I'm curious how you go a

I've always done this, but I've run an email server forever so it wasn't any added hassle to have gmail download the emails using pop. I'm curious how you go about it without running your own server. Do you pay for the google email service? Or just use your registrar's email forwarding to forward from your custom email to your gmail? Something else? I tried forwarding in the past for simplicity but found it results in a significantly higher rate of false positives in the spam folder.