Our module will work with both iRedMail paid and free version. This module is about iRedMail as a mail server solution. If you want to offer, email hosting to your customers and want the easiest way to auto-provision the email accounts then WGS iRedMail WHMCS Module is the best module for you. The core functionality of this module is adding of domain, creation, suspension, and termination of email accounts.
https://whmcsglobalservices.com/iredmail-for-whmcs/