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Mailcow Hosting on Your Own Server: Providers Compared

In a world where data security and control over your own emails are becoming increasingly important, Mailcow offers a comprehensive open-source solution for email hosting. Mailcow allows you to operate a complete email server that provides modern features, security, and user-friendliness.

Hosting Mailcow on your own server gives you full control over your emails and their security. But which hosting provider is right for you? Our comprehensive comparison of the best providers will help you find the perfect solution for your Mailcow hosting. We analyze and evaluate various hosting options to give you a clear overview of costs, services, and support. Discover how to set up and operate your own Mailcow server to ensure secure and efficient email management.

What is Mailcow?

Mailcow is an open-source email hosting suite based on Docker, providing a comprehensive solution for managing and operating a complete email server. Mailcow combines various open-source components to create a powerful and user-friendly email platform.

Main features of Mailcow:

• Components: Mailcow integrates various software components such as Postfix (SMTP server), Dovecot (IMAP/POP3 server), SoGo (groupware), rspamd (spam filter), ClamAV (antivirus), and many other services.
• Docker-based: Mailcow uses Docker containers, making installation and management easier and ensuring a clear separation of individual services.
• User-friendliness: An intuitive web interface allows easy management of email accounts, domains, and other settings.
• Security: Mailcow offers integrated security features such as SSL/TLS encryption, two-factor authentication (2FA), and comprehensive spam and virus filtering.
• Groupware functionality: With SoGo, Mailcow provides advanced features for calendar, contacts, and task management.
• Scalability: By using Docker containers, Mailcow can easily scale to meet the needs of growing numbers of users.
• Open Source: Mailcow's source code is publicly available, promoting transparency and customization.

These features make Mailcow an ideal choice for businesses, organizations, and individuals looking for a secure, flexible, and powerful email hosting solution.

What Server Requirements Does Mailcow Have?

Mailcow requires a VPS Hosting with at least 1 GHz CPU, 6 GB RAM (plus 1 GB Swap), 20 GB storage space (excluding emails), and an x86_64 or ARM64 architecture. It supports fully virtualized platforms like KVM, ESX, and Hyper-V, but not container platforms like OpenVZ or LXC. A correct DNS setup and accurate system time are important. Mailcow requires open ports for incoming connections and should not be run with other email services on the same server. Supported operating systems include Debian 11 and 12, Ubuntu 20.04 to 24.04, Alma Linux 8, and Rocky Linux 9.

Detailed information on Mailcow system requirements can be found at https://docs.mailcow.email/getstarted/prerequisite-system/.

What to consider when choosing a server provider for Mailcow Hosting?

When selecting a server provider for Mailcow hosting, make sure to consider sufficient hardware resources, support for x86_64 or ARM64 architecture, and a stable internet connection. The provider should support fully virtualized platforms like KVM, ESX, or Hyper-V and not use container platforms like OpenVZ or LXC. A correct DNS setup, SSL certificates, and reliable technical support are also important. Also, ensure that the provider offers regular backups and security updates.