Proxmox for Business - Virtualization, Backup and Mail Security (PVE, PBS, PMG)

After Broadcom acquired VMware and drastically changed its licensing model, thousands of companies began looking for an alternative to their virtualization infrastructure. Most of them discover Proxmox - a complete, open ecosystem that combines server virtualization (PVE), backup (PBS) and mail security (PMG) in one cohesive, self-hosted family of products.

What is virtualization and why do you need it?

Virtualization lets you run multiple independent servers (virtual machines) on a single piece of physical hardware. Instead of buying a separate server for each application, you split one powerful machine into several isolated environments - radically lowering the cost of hardware, power, and rack space.

This is the foundation of modern IT infrastructure: you launch new services faster, move them between servers more easily, and recover from failures more efficiently. Proxmox delivers this entire environment as open source software, without expensive per-processor licenses.

Key advantage: The entire Proxmox ecosystem is open source (AGPLv3) and managed through a clear web interface.

The three pillars of the Proxmox ecosystem

Proxmox is not a single product but three complementary solutions that together form a complete business infrastructure.

Proxmox VE (Virtual Environment) - the heart of the infrastructure

Proxmox VE is a virtualization platform that manages virtual machines (KVM) and containers (LXC) from a single web interface. It is a direct, mature alternative to VMware vSphere.

What PVE offers:

• Virtual machines and containers - full VMs and lightweight LXC containers in one place,
• High availability (HA) - clustering and automatic failover when a node goes down,
• Software-defined storage - built-in integration with Ceph and ZFS,
• Live migration - moving running machines between servers with no downtime,
• No licensing fees - optional vendor support, but never mandatory.

Proxmox Backup Server (PBS) - data protection

Proxmox Backup Server is a dedicated solution for backing up virtual machines and containers. It integrates natively with PVE, providing fast and space-efficient backups.

What PBS offers:

• Block-level deduplication - identical data is stored only once, drastically saving space,
• Client-side compression and encryption - data is secured before it is even sent,
• Incremental backup - after the first copy, only changes are stored, speeding up the process,
• Integrity verification - automatic checks that backups are restorable,
• Fast recovery - restore an entire machine or individual files.

Proxmox Mail Gateway (PMG) - email protection

Proxmox Mail Gateway is an email gateway that acts as a filter between the internet and your mail server. It stops spam, viruses, and phishing before they reach employees' inboxes.

What PMG offers:

• Anti-spam and anti-virus protection - multi-layered threat filtering,
• Phishing protection - detection of data theft attempts,
• Mail server independence - works with any system (Exchange, Carbonio, Zimbra, and others),
• Quarantine and reports - full control over held correspondence,
• Company rules - flexible filtering policies tailored to your organization.

Proxmox as a VMware alternative

Business benefits of deploying Proxmox

1. Real savings

No per-processor licenses and consolidating multiple servers onto one machine mean lower purchase, energy, and maintenance costs - especially noticeable after the VMware price increases.

2. Full control and data sovereignty

The entire infrastructure runs on your hardware or in an EU data center. You decide where the data lives - which makes GDPR compliance easier.

3. Security and business continuity

High availability, regular backups with deduplication, and mail protection in one ecosystem minimize the risk of downtime and data loss.

4. A cohesive, integrated ecosystem

PVE, PBS, and PMG are designed to work together and managed through a similar interface - fewer tools to learn, fewer points of failure, simpler maintenance.

Who is Proxmox for?

Proxmox works especially well wherever cost control and independence matter:

• Companies migrating from VMware looking for a stable alternative without costly subscriptions,
• Small and medium businesses that want professional virtualization without an enterprise budget,
• Organizations with GDPR requirements that need to keep data in their own infrastructure,
• Companies building their own server room or using colocation in a data center.

How will nex-IT deploy Proxmox in your company?

We handle the complete, technical deployment of the Proxmox ecosystem:

• Analysis and design - hardware selection, cluster architecture, and backup strategy,
• PVE deployment - installation, cluster configuration, and high availability,
• VMware migration - safe transfer of existing virtual machines,
• PBS configuration - automatic, encrypted backups with retention policies,
• PMG deployment - company mail filtering and threat protection,
• Maintenance and support - monitoring, updates, and ongoing technical care.

Summary

Proxmox is a mature, open ecosystem that combines virtualization (PVE), backup (PBS), and mail security (PMG) in one place. For companies seeking an alternative to the increasingly expensive VMware, it is a way to regain control over infrastructure, achieve real savings, and gain full data sovereignty - without compromising on reliability. Three pillars designed to work together form a cohesive, self-hosted foundation for a modern server room.

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Considering migrating from VMware or building your own virtual infrastructure? We will help you design, deploy, and maintain the Proxmox ecosystem - from PVE through backup to mail security. Contact us!