I have multiple domains (and many email addresses) that I pay a host (Namecheap) for. I have the lowest priced annual hosting package. And email is administered through cPanel, not the separate email service they offer. cPanel is very easy to use and you get spam controls. I also fetch my pop3 mail with Thunderbird. I have done this for 15+ years and rarely have I had an issue or missed email. cPanel is part of your hosting package.