Built for modern business owners & developers

Everything You Need in a Custom Email Platform.

Gravbox combines hyper-fast webmail, automated DNS configuration, enterprise spam prevention, and customizable AI productivity helpers in one seamless interface.

Explore Gravbox Capabilities

Click through the categories below to discover how Gravbox upgrades your daily email workflow.

Modern Webmail Experience

Lightning fast, distraction-free inbox built for productivity.

Gravbox replaces clunky, slow legacy webmail interfaces with a sleek, responsive dashboard designed for speed, keyboard efficiency, and seamless multi-domain switching.

Zero ads and zero tracking algorithms in your mailbox
Sub-100ms message loading and instant search
Rich HTML email composer with markdown formatting
Custom UI themes (Claymorphic, Vercel Dark, Claude, and more)
Multi-account & alias switching without re-logging

Feature Highlight

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Modern Webmail Experience

Gravbox replaces clunky, slow legacy webmail interfaces with a sleek, responsive dashboard designed for speed, keyboard efficiency, and seamless multi-domain switching.

// Configured for high-availability mail delivery

Ready to upgrade your custom email?

Get started today. Set up your custom domain mailboxes in under 3 minutes.

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