Fortinet FortiMail VM04

Fortinet FortiMail VM04

Delivering the same multi-layered protection as FortiMail hardware appliances, VM04 secures email environments against spam, phishing, ransomware, zero-day malware, impersonation, and Business Email Compromise (BEC).

Powered by FortiGuard Labs and integrated into the Fortinet Security Fabric, FortiMail VM04 enables scalable email security across hybrid, private cloud, and public cloud infrastructures.

Advanced Multi-Layer Threat Protection

FortiMail VM04 protects inbound, outbound, and internal email traffic using:

• 99.99% spam catch rate (independently validated)

• FortiGuard Anti-Spam and Antivirus

• Virus Outbreak Protection

• Behavioural and heuristic malware detection

• SPF, DKIM, and DMARC enforcement

• Impersonation and cousin-domain detection

• URL click protection with dynamic re-scanning

• Content Disarm & Reconstruction (optional via ATP)

• Cloud sandbox integration (optional)

This layered defence ensures protection against both known and zero-day threats.

Stronger Performance for Growing Enterprises

FortiMail VM04 delivers significant performance capacity for expanding environments:

• Up to 306,000 messages per hour (email routing)

• Up to 279,000 messages per hour with FortiGuard Anti-Spam + Virus Outbreak

• Up to 225,000 messages per hour with Enterprise ATP enabled

• Support for up to 500 protected email domains

• Up to 1,500 server-mode mailboxes

This makes VM04 ideal for organisations transitioning from small-business infrastructure to enterprise-scale operations.

Flexible Virtual & Cloud Deployment

FortiMail VM04 supports major hypervisors and cloud platforms, including:

• VMware ESX/ESXi

• Microsoft Hyper-V

• Citrix XenServer

• KVM

• AWS

• Microsoft Azure

• Google Cloud Platform

• Oracle Cloud Infrastructure

• Nutanix AHV

VM04 supports:

• 4 vCPUs

• 416 GB RAM

• 250 GB4 TB storage

• 16 virtual NICs

This allows organisations to align email security resources with infrastructure growth.

Microsoft 365 & Google Workspace API Integration

Optional API-level integration enables:

• Real-time mailbox scanning

• Scheduled scanning

• Internal mail inspection

• Post-delivery threat clawback

This enhances native cloud security controls without requiring MX record changes.

Data Protection & Compliance Controls

FortiMail VM04 includes:

• Data Loss Prevention (DLP)

• File fingerprinting and sensitive data detection

• TLS encryption with granular cipher control

• S/MIME support

• Identity-Based Encryption (IBE)

These capabilities help reduce data leakage risks while supporting compliance requirements.

Seamless Security Fabric Integration

FortiMail VM04 integrates with:

• FortiAnalyzer

• FortiSandbox

• FortiSIEM

• FortiSOAR

• FortiNDR

• FortiIsolator

By sharing Indicators of Compromise (IoCs) across your security ecosystem, organisations gain improved threat visibility and automated response capabilities.

Why Choose FortiMail VM04?

FortiMail VM04 is ideal for organisations that:

• Require enterprise-grade performance in a virtual deployment

• Manage multiple email domains across distributed environments

• Operate hybrid or cloud-first infrastructure

• Need scalable growth without hardware investment

• Want deep integration within the Fortinet Security Fabric

FortiMail VM04 delivers powerful, scalable, and flexible virtual email security designed for modern, growing enterprises.


View data sheet: FortiMail Data Sheet