Simple Contact-Form in Kirby 3
As a starting point I've used the latest Starterkit (Beta 4) combined with the core from the latest Nightly Build (18-08-06).
First, set email-properties in your config. I would recommend using a mail-service like Mailgun (via SMTP) because setting everything up on your own server is cumbersome, error-prone, and unsecure. But of course, it's up to you.