We recommend using Google Workspace (Formerly GSuite) for hosting your domain's email. This is accessed directly through gmail, making your email accessible from any device, anywhere in the world.
Hosting companies sometimes provide email hosting, however, because of complications with sender reputation (spam) and authenticating (spoofing), this is extremely tedious and technical to set up. Not doing it, or doing it wrong, means emails don't get sent.
Google Workspace (gmail) circumvents this, all for just $5/month.
Newsletters are an entirely separate service, offered by companies like Convertkit, Mailchimp and Constant Contact. These services are specifically for getting subscribers and sending new recipes, seasonal content and freebies/offers.
You need both hosted email, and a newsletter service.