Zimbra, HostBill

Sell, automate and manage Zimbra email services. Charge for number of domains, aliases, distribution lists and even class of service usage or mailbox additional space.

Linux support services by Linux developers

SmarterTools SmarterMail Spam Experts Integration

OpenSRS Email, HostBill

OpenStack VPS And Cloud For WHMCS - ModulesGarden Wiki

WHMCS, Hostbill, API & EPP Domains & Hosting Reseller Program in UAE

The Very Good Email Company vs. Zimbra Comparison

drServer.net

DirectAdmin Addon

DatChat vs. GO SMS Pro vs. Signal vs. Zimbra Comparison

Spam Experts Incoming Filter - Comprompt Solutions LLP

Partners - Nextcloud

Hetzner Robot module - HostBill Blog

My pres

Configure proxmox module for hostbill and whmcs by It_expertos