If you want to use your domain for email have a look at [Support Guide] How can I receive emails on my domain?.
As for updating content, you can edit your HTML locally and deploy again, or integrate with something like Netlify CMS.
If you want to use your domain for email have a look at [Support Guide] How can I receive emails on my domain?.
As for updating content, you can edit your HTML locally and deploy again, or integrate with something like Netlify CMS.