Developed By GriffinHosting

Compatible with WHMCS v8.8


Our software automatically manages the delivery process to give your emails the best chance of landing in the inbox. IrisMail takes your billing system to the next level!

All packages include the following features:

  • All email sent over HTTPS (port 443). No need for SMTP ports.
  • Unlimited email validations. Check emails at registration time for valid MX DNS entries, and block free or temporary email providers.
  • Detailed reporting of delivery, open and clicks with Admin notification of bounced emails.
  • Inbound email processing. Inbound MX mail server sends directly to your ticket system via webhooks, with spam assassin checks and scores.
  • Completely integrated inside the billing system. No need for any external provider accounts.
  • Easy setup and configuration. With just a few clicks, you are up and running!
  • Background sending of emails via cron task (configurable per template). Speed up your customers checkout experience.
  • Edge optimized API. Requests are routed to the nearest CloudFront Point of Presence, all around the world.
  • Client area notification of bounced emails. Let your customers know of issues when they log in to their account.
  • Supports RFC 3834 Headers. These headers prevent circular responses when both the sender and destination are using auto-responders.
  • Dynamic data tables. Quickly find the information you need.
  • All services bundled in one complete package.
  • 100% Open source!


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Version Compatibility

Compatible with WHMCS v8.8

Full Version Compatibility

  • Selected versions of WHMCS v8.8
  • All versions of WHMCS v8.7
  • All versions of WHMCS v8.6
  • All versions of WHMCS v8.5
  • All versions of WHMCS v8.4
  • All versions of WHMCS v8.3
  • All versions of WHMCS v8.2
  • All versions of WHMCS v8.1
  • All versions of WHMCS v8.0

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 GriffinHosting


v3.6 Released February 6th, 2023

Latest Version

  • Support for PHP 8.1


Previous Versions

v3.5 Released March 22nd, 2022

View/hide detailed changelog

  • Fixed issue with email messages exceeding 10MB limit.
  • Fixed issue with inbound email processing null attachments.


v3.3 Released January 26th, 2022

View/hide detailed changelog

  • Updated to support WHMCS 8.4


v3.2 Released July 1st, 2021

View/hide detailed changelog

  • Initial Release


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

SMS Alert

Send automated SMS alert from WHMCS, and verify users mobile with OTP