Allow people to subscribe to blog via email?

Is there a plugin that allows people to subscribe to a grav blog via Email? I have family members who might want to follow it and won’t be able to navigate RSS or Atom feeds.

Everything written for this WP-related article on using Mailchimp to achieve this, applies to Grav too:

(except the Jetpack feature described at the bottom)

Thank you! I wish there was a plugin for this, but this works as well!