Bringing a better Email, Chat & Files to cPanel, Plesk and the World.

Start a 30 day free trial. This one's on us.

CrossBox - The ultimate email client CrossBox - The ultimate email client

Plug-n-Play Installation

Have everything up and running in no time. When you start the web installation you'll notice that CrossBox auto-detects and preselects almost everything for you. All you need to do is click Next Next Finish.

Quick Installation

Truly Cross-Platform

CrossBox runs on any Linux distro. It supports all control panels but can also run without any control panel at all. It is easily virtualized and runs everywhere with full Docker, KVM, OpenVZ, Xen, and VMware support.

cPanel Plesk Stand-alone Docker

Unlimited Users per Server

Say no more to tricky per account pricing schemes. Use our madly low, per server pricing model to host an unlimited number of domains and users. There are no sneaky disk space limits either.


GDPR Compliant
28 Languages
Account Security
2FA with Google Authenticator

Beautiful Design.
Rock Solid. Engineering.

With no refresh buttons and only real time experience, CrossBox comes with a pixel perfect design, an intuitive interface, and features that make online communication faster and simpler than ever.

Even When on the Go

CrossBox Puts Powerful Features at Your Fingertips

Admin Panel

Take a Full Control over Your CrossBox Server

CrossBox Cluster

Unlock an Advanced Set of Unique Features for Hosting Providers

Connect different cPanel, Plesk and Stand-alone servers into a smart platform with a single entry point

Cluster Mail

Advertise a single, easy to remember IMAP/SMTP/POP3 hostname for all servers.

Cluster Webmail

Provide customers from different servers with a single Webmail URL.

Scale Indefinitely

Just add more servers via the master's admin area and you are good to go.

Mix Different Servers

A cluster can contain any number or combination of cPanel, Plesk and Stand-alone servers.


Pay less with our /per server pricing model