Use google apps (similar to gmail only using your own domain) to host your email. We’re setup to point your email's MX records over to them so it’s very easy to do and millions of businesses are using this service so you can be confident that it works well. They charge only $5 a month for professional grade email with the best spam protection in the industry.
Go here to get started: https://gsuite.google.com/products/gmail/
Also as an alternative to google apps, most domain registrars (like network solutions) offer email for a cheaper fee.
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