Formspree

If you have a static site, you have less options for forms. But Formspree is super easy to set up. Just add HTML code and you’re good to go. They handle the actual transmission. It’s not the most flexible system in the world, but it’s quick and easy. It’s what I am currently using on this site. It’s easy to set up a honeypot, but there’s no Captcha option unfortately. But it’s free, which is pretty awesome.