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mailcow: dockerized vs OpenVZ

Professional comparison and analysis to help you choose the right software solution for your needs.

mailcow: dockerized icon
mailcow: dockerized
OpenVZ icon
OpenVZ

mailcow: dockerized vs OpenVZ: The Verdict

⚡ Summary:

mailcow: dockerized: mailcow: dockerized is an open source email server that runs on Docker. It bundles common email components like Postfix, Dovecot, SOGo, Rainloop, PostfixAdmin, and more into easy-to-use containers.

OpenVZ: OpenVZ is an open source container-based virtualization platform for Linux. It allows multiple isolated virtual containers to run on a single physical server, sharing the same Linux kernel.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature mailcow: dockerized OpenVZ
Sugggest Score — —
Category Network & Admin Os & Utilities
Pricing Open Source Open Source

Product Overview

mailcow: dockerized
mailcow: dockerized

Description: mailcow: dockerized is an open source email server that runs on Docker. It bundles common email components like Postfix, Dovecot, SOGo, Rainloop, PostfixAdmin, and more into easy-to-use containers.

Type: software

Pricing: Open Source

OpenVZ
OpenVZ

Description: OpenVZ is an open source container-based virtualization platform for Linux. It allows multiple isolated virtual containers to run on a single physical server, sharing the same Linux kernel.

Type: software

Pricing: Open Source

Key Features Comparison

mailcow: dockerized
mailcow: dockerized Features
  • Self-hosted email server
  • Webmail client (Rainloop)
  • Contacts/calendar sync (SOGo)
  • Spam filtering (Rspamd)
  • Email encryption (TLS)
  • Web admin interface
  • Auto configuration for email clients
  • Scalable - uses Docker containers
OpenVZ
OpenVZ Features
  • OS-level virtualization
  • Resource isolation
  • Overcommitting of physical resources
  • Live migration of containers
  • Templates for fast deployment

Pros & Cons Analysis

mailcow: dockerized
mailcow: dockerized
Pros
  • Free and open source
  • Secure - supports TLS encryption
  • Feature-rich - bundles many email components
  • Easy to deploy - uses Docker containers
  • Good spam filtering with Rspamd
  • Webmail and calendar/contacts included
Cons
  • Complex initial setup
  • Requires Linux server and Docker knowledge
  • No official paid support options
  • Limited mobile app support
  • Less user-friendly than commercial options
OpenVZ
OpenVZ
Pros
  • Lightweight and efficient
  • Good performance
  • Easy to manage
  • Scalable
Cons
  • Limited customization compared to VMs
  • Less flexible than Docker
  • Lacks native live storage migration
  • Not as widely supported as other solutions

Pricing Comparison

mailcow: dockerized
mailcow: dockerized
  • Open Source
OpenVZ
OpenVZ
  • Open Source

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Learn More About Each Product

mailcow: dockerized
mailcow: dockerized
Reviews, pricing & alternatives →
OpenVZ
OpenVZ
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