Developed By Open-Xchange

Compatible with WHMCS v8.6

Important: Before using our WHMCS module

  • To be able to use the OX WHMCS Module, you MUST have an OX Cloud account!

  • The OX WHMCS Module lets you provision and manage OX Cloud email accounts.

  • BEFORE you can do this, you need to be registered on OX Cloud, so that we can give you access to the OX Cloud servers.

  • Without this your OX WHMCS Module will not be able to connect to OX Cloud and will not work!

  • To register on OX Cloud please click here:



What is OX Cloud

This advanced email product is easy to use and scores highly when it comes to security and productivity for Small Businesses.

Used by some of the largest Hosters around the world it is fully supported by Open-Xchange, in geo-redundant datacentres around the globe.

This premium offering come with with secure business email, advanced calendar, tasks, contacts and optional productivity, security, and storage add-ons.

To find out more about OX Cloud user features click here - OX Mail User Pages


OX Cloud for You

Why choose OX Cloud?

  • The leading Email solution for Hosters and Resellers
  • Designed for Small Businesses
  • Easy to use, excellent user experience and appealing user interface
  • Easy to upsell with predefined packages
  • Business grade Advanced Security add-on package – Advanced Security Page
  • Business cloud storage and productivity add-on package
  • Fully supported by Open-Xchange on geo-redundant datacenters
  • Brandable – Match the product to your own CI


OX Cloud for Your Users

Your small business users will love OX Cloud.

It is specifically designed for them with:

  • Easy to use premium business email
  • Business calendar with resource management
  • Add other email accounts – Unified Inbox
  • Drive Mail - Send large file attachments as links
  • Rules and filters
  • And much more see here – OX Mail User Pages


How to get it

OX Cloud and WHMCS the perfect combination

How to get started:

  • First you need to get in contact with Open-Xchange.
    The following link will take you to Open-Xchange where you can find out everything you need to know from pricing to how to get an OX Cloud account Open-Xchange WHMCS Page
  • Once processed you will get access to:
    • OX Cloud, so that you can start selling and provision OX Cloud accounts
    • Online support trainings to train your customer care agents
    • Our onboarding processes
    • Our marketing materials that you can use to learn how to position and sell OX Cloud to your clients
  • Next, download and install the Open-Xchange WHMCS Module
  • Now you can create product groups, products and upgrades.
  • You are now able to sell OX Cloud to your customers.



You can view the OX WHMCS Module Guide here.


Want to know more

  • Try OX Cloud – Demo available here Online Demo
  • Get more detail from Open-Xchange here



5 stars
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Jan Tran @jan1726

December 22, 2022 at 02:59:01 PM

No comment provided.

  • 9 months ago
  • Version Number 1.0.5

Version Compatibility

Compatible with WHMCS v8.6

Full Version Compatibility

  • Selected versions of WHMCS v8.6
        8.6.0 - 8.6.1
  • All versions of WHMCS v8.5
  • All versions of WHMCS v8.4
  • All versions of WHMCS v8.3
  • All versions of WHMCS v8.2

System Requirements

  • MUST HAVE a valid OX Cloud customer account for the module to work

* Requirements listed are in addition to the WHMCS default system requirements.

Support for this product

The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.

Developed By Open-Xchange


v1.0.13 Released August 3rd, 2023

Latest Version

  • A minimum value to the quota field in the product configuration was added

  • The problem with counting the number of mailboxes was fixed

  • The problem with adding the first mailbox to the newly created service was fixed


Previous Versions

v1.0.11 Released May 9th, 2023

View/hide detailed changelog

New Features:

  • Timezone and language defaults can be configured from the admin area
  • Added login button for OX App Suite to the client area


  • Product component names were updated
  • Removed excessive information from the client area
  • Client area view was change - context size not displaying anymore
  • Added validation to prevent the user from setting 0 value quota during new mailbox creation
  • Made email autofill during mailbox creation a setting in admin area

Bug Fixes:

  • Upgrade/Downgrade screen loading issues were fixed
  • Fixed issue with Password with "&" symbol not being valid
  • Fixed the issue with setting context limit lower than mailbox limit
  • Fixed the issue where the module allowed the admin to fill the "Maximum Quota Per Email Account [MB]" field with a value greater than the "Maximum Quota Per Context [MB]" field
  • Fixed the issue where the user was still able to set 0 value quota
  • Context Quota Limit field re-added to the information table on the client area


v1.0.5 Released December 16th, 2022

View/hide detailed changelog

  • This module now supports WHMCS Version 8.6 (PHP 8.1 Support)
  • When creating mailboxes you can now set defaults for timezone and languages.
  • When creating a new mail account the system now autofilling the “Display Name” & “Primary Email” using the entered first name and last name (e.g. John Smith becomes Display Name "John Smith”, and Primary Email "john.smith@...").
  • Passwords now have to meet minimum security rules (at least 8 symbols, should include a capital letter and a number). This is now enforced.
  • It is now possible to reset the password, for a mailbox account, directly within the client area.
  • Terminated domains can now be re-created with the same domain name.
  • Other bug fixes and general enhancements.


v1.0.1 Released January 19th, 2022

View/hide detailed changelog

Admin area

  • Adjust the branding of the provisioned OX Cloud account (logo, colours)
  • Manage list of provisioned context Client area:
  • Create and manage e-mai accounts
  • Create and manage e-mail aliases
  • Create and manage forwarding e-mails
  • Create and manage catch-all emails
  • Check MX record settings


See also

Discord Notifications

A simplistic, free & open source hook allowing instant Discord notifications when an action is triggered.

Netgsm Sms

Netgsm Sms addon provides you sending customized bulk sms and creating sms templates.

MSG91 SMS/OTP Plugin

MSG91 WHMCS SMS plugin gives you the power and flexibility to stay connected with your customers by sending them an SMS and OTP's for 2FA at the crucial steps that matters the most.

SMS Manager

More Advanced SMS System (Two-Factor Authentication)

Email Plus+

Transactional email support for Sendgrid, Mailgun, Postmark, Sendinblue (Brevo), Mailjet, Sparkpost, Mandrill, AmazonSES, postalserver