A modern mail client for the modern world!

CrossBox is included on all shared and reseller hosting packages for free.

Built-in file preview

Downloading attachments are a thing of the past, with CrossBox, you can preview any document, spreadsheet, presentation, image, audio, or even video directly from your inbox.

Schedule your email sends

With CrossBox, it's super easy to schedule a timed email delivery. Just choose — for example, Monday at 8:30 am, no more disturbing your clients at 2 am in the morning!

Custom Branding

Change the application's name, logo, and colour theme to match the identity of your brand or company.

  • Available to Users & Resellers
  • Custom Web, Android & iPhone Branding
  • Customize the Login Page, News, Links, and the Logo

Powerful Composer

Format your emails with over 25 styles with the easy to use mail composer. Emojis included!

Undo Everything

Accidentally deleted or moved an email, no worries, just click undo and the email will be restored.


Going away on holiday, easily set an autoresponder so people know you are not ignoring them.

Suspicious Links

CrossBox is always looking out for you, so any suspicious looking links will be shown to you.