Mail Cow For WHMCS

Mail Cow For WHMCS

Developed By Provonic

Compatible with WHMCS v9.0
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Mailcow Module for WHMCS Provonic

Seamless, Scalable & Smart Email Hosting Integration

Provonic Mail Cow For WHMCS is a Mailcow WHMCS module that connects WHMCS to your Mailcow server so you can sell email hosting with full email automation. As a Mailcow server module it handles Mailcow provisioning end to end: email provisioning and mailbox provisioning when an order is paid, then suspend, unsuspend and terminate from WHMCS. It is Mailcow for WHMCS, built for hosting providers and IT companies who run self-hosted email on Mailcow and want a professional Mailcow email hosting product, sold as standalone email hosting or as a way to bundle email with hosting and VPS plans.

Mailbox management is built in. Both admins and clients can manage mailboxes for their domain, create mailboxes, delete mailboxes and change passwords for any mailbox password directly in WHMCS, while admins can also reset passwords and adjust quotas: full email account management for all email accounts. Configurable options set the number of mailboxes, mailboxes per domain and the default mailbox quota, so quota management and storage quota rules follow each plan. Sell extra storage, additional mailboxes or extra mailboxes as a mailbox addon or email addon, and charge per mailbox, per GB or as a bundle.

Usage metrics report disk usage (MB and GB) and message count for every account, so usage billing and usage-based billing in WHMCS reflect what clients really store. The module is multi-tenant, serving many clients from a single Mailcow instance, and reseller-friendly, with delegated control for resellers who manage their own clients. Everything runs over the Mailcow API: a clean Mailcow integration, a WHMCS Mailcow mail server module and a Mailcow module that turns your mail server into a mail hosting business, with one email hosting module for every plan.

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Admin Features:

  • Automatic Account Creation
  • Suspend, Unsuspend, Terminate
  • Reset Mailbox Passwords
  • Adjust Quotas From WHMCS
  • Create And Delete Mailboxes
  • Multi-Tenant Mailcow Instance
  • Reseller-Friendly, Delegated Control
  • Secure API Communication
  • Mailboxes, Aliases And DNS & DKIM Popups On The Service Page
  • One-Click Login To The Mailcow Admin Panel
  • Own Domain Admin Or Shared Central Admin Mode
  • Check For Update And Automatic Updates

Client Area Features:

  • Create Mailboxes For Their Domain
  • Delete Mailboxes
  • Change Mailbox Passwords
  • Create And Delete Aliases, Including Forwarding
  • DNS Records Page With MX, SPF, DKIM And DMARC
  • One-Click Login To Mail Panel And Webmail
  • Self-Service Email Management

Configurable Options:

  • Extra Mailboxes
  • Extra Aliases
  • Extra Storage (GB)

Addons:

  • Extra Mailbox Storage
  • Additional Mailboxes

Usage Metrics:

  • Disk Usage In MB And GB
  • Message Count Across Mailboxes

Billing Models:

  • Per Mailbox
  • Per GB
  • Bundled Packages
  • Usage-Based Billing From Metrics

Use It As:

  • A WHMCS Product Module
  • A Service Addon For Mail Hosting
  • Email Alongside Shared Hosting Or VPS

General Info:

  • WHMCS 8.7 To 9.X
  • PHP 8.1, 8.2, 8.3 And 8.4
  • Requires A Mailcow Server
  • Six, Twenty-One, Nexus, Nexum And Lagom Themes, With Dark Mode
  • Requires ionCube Loader v13 Or Later
  • 5-Day Free Trial, Once Per Client

Available Pricing Models:

  • Annually: $24
  • One-Time: $39
  • Open Source: $99

 

Reviews

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Jack Christopher avatar

Jack Christopher @jack5217

July 2, 2026 at 12:55:40 PM

I've been using the Mailcow Server Module for a few months now, and it has made email hosting management incredibly smooth. Provisioning new mailboxes is fully automated, and clients can manage everything from WHMCS create/delete accounts, set quotas, and handle passwords all without needing to log into Mailcow separately. The integration is seamless and reliable. It's perfect for hosting providers looking to offer professional email hosting with minimal admin overhead. Highly recommended

  • 3 months ago

Version Compatibility


Compatible with WHMCS v9.0

Full Version Compatibility


  • Selected versions of WHMCS v9.0
        9.0.0 - 9.0.3
  • Selected versions of WHMCS v8.13
        8.13.0 - 8.13.2
  • All versions of WHMCS v8.12
  • All versions of WHMCS v8.11
  • Selected versions of WHMCS v8.10
        8.10.0
  • Selected versions of WHMCS v8.9
        8.9.0
  • Selected versions of WHMCS v8.8
        8.8.0
  • All versions of WHMCS v8.7

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 Provonic

Changelog

v1.0 Released August 15th, 2025

Latest Version


Seamlessly Connect MailCow Server with WHMCS.

 

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