What are the best email providers for business? I need protected email provider at competitive price.

Gmail / Google Workspace — Best Email Provider for Small Companies.
iCloud Mail — Best Email Provider for Apple Users.
Neo — Best Business Email Without Domain (Easiest Set-up)

Every business has different needs, so it's important to compare features and find an email client that offers everything you need. Spacemail is great choice for secure, feature-rich business email service. It offers password-protect sensitive emails so only the intended recipient can open them. With Spacemail you can create a custom business email address using your company name, establishing a stronger brand identity that builds trust among customers and clients.