Fortinet FortiMail 400F

Why Choose FortiMail 400F?

Email remains the most common attack vector for ransomware, phishing, credential theft, business email compromise (BEC), and targeted malware campaigns. FortiMail 400F delivers enterprise-grade email security that helps organizations prevent email-borne threats before they reach users.

Designed for growing businesses and mid-sized enterprises, Fortimail 400F combines advanced anti-spam, anti-malware, data protection, and threat intelligence capabilities into a single platform that simplifies email security operations while improving protection.

Key Benefits

• Protect users against phishing, spoofing, ransomware, and malware
• Block unwanted email with industry-leading spam detection
• Reduce business risk from Business Email Compromise (BEC)
• Prevent sensitive information leakage with integrated DLP
• Secure Microsoft 365 and Google Workspace environments
• Gain visibility through centralized reporting and quarantine management
• Improve compliance with email encryption and content controls
• Leverage FortiGuard Labs threat intelligence for real-time protection
• Integrate email security into the Fortinet Security Fabric

FortiMail 400F Overview

FortiMail 400F is a dedicated secure email gateway that provides advanced protection for inbound and outbound email communications. It uses multiple inspection technologies to identify and block spam, phishing attempts, malicious attachments, malware, impersonation attacks, and zero-day threats.

With support for up to 70 protected email domains, 400 local mailboxes, and email processing rates of up to 250,000 messages per hour, FortiMail 400F is well suited for organizations that require scalable email security without the complexity of large enterprise deployments.

The platform can be deployed alongside Microsoft 365, Google Workspace, Microsoft Exchange, or hybrid email infrastructures to deliver consistent protection across cloud and on-premises environments.

Key Capabilities

Multi-Layer Email Threat Protection

FortiMail 400F combines multiple security engines to protect against modern email threats, including:

• Spam and junk email
• Phishing campaigns
• Malware and ransomware
• Business Email Compromise (BEC)
• Domain spoofing attacks
• Zero-day threats
• Malicious URLs and attachments

Advanced Anti-Spam Protection

FortiMail analyzes:

• Sender reputation
• IP addresses
• Domains
• SPF validation
• DKIM verification
• DMARC policies
• Embedded URLs
• Message content and behavior

Independent testing has consistently validated FortiMail’s ability to block up to 99.99% of spam traffic.

Advanced Threat Protection (ATP)

For organizations facing sophisticated attacks, FortiMail supports:

• Sandboxing analysis
• Content Disarm and Reconstruction (CDR)
• URL click protection
• Impersonation detection
• Advanced malware inspection

These capabilities help stop unknown and targeted threats before they reach users.

Integrated Data Loss Prevention (DLP)

Unlike entry-level email security solutions, FortiMail 400F includes built-in Data Loss Prevention capabilities.

Organizations can:

• Prevent accidental data leakage
• Control sensitive email content
• Enforce compliance requirements
• Protect intellectual property
• Apply content-based email policies

Microsoft 365 and Google Workspace Protection

FortiMail 400F supports optional API-based integration with cloud email platforms, enabling:

• Mailbox scanning
• Threat detection
• Post-delivery remediation
• Additional protection beyond native cloud email security

This helps organizations strengthen Microsoft 365 and Google Workspace security without changing email routing.

Centralized Quarantine and Reporting

Security administrators gain centralized visibility into email activity through:

• Real-time dashboards
• Email tracking
• Threat reports
• User activity monitoring
• Quarantine management

This simplifies operational management and accelerates incident investigations.

Fortinet Security Fabric Integration

FortiMail 400F integrates with:

• FortiGate
• FortiAnalyzer
• FortiSandbox
• FortiSOAR
• FortiSIEM
• FortiNDR
• FortiIsolator

By sharing indicators of compromise (IoCs) across the Security Fabric, organizations gain broader visibility and faster threat response.

Common Use Cases

• Microsoft 365 Email Protection
• Google Workspace Security
• Email Compliance
• Business Email Compromise (BEC) Protection
• Ransomware Prevention
• Secure Email Gateway Deployment

Deployment Options

Gateway Mode

Deploy FortiMail as a secure email gateway between the internet and internal mail servers.

Transparent Mode

Add email security without modifying existing MX records or email infrastructure.

Server Mode

Operate FortiMail as a complete messaging platform with SMTP, POP3, IMAP, and WebMail support.

Microsoft 365 and Google Workspace API Mode

Protect cloud mailboxes using API-based integration and post-delivery threat remediation.

Technical Specifications

Specification	FortiMail 400F
Recommended Deployment	Small to Mid-Sized Organizations
Protected Email Domains	70
Local Mailboxes	400
Recipient-Based Policies	400 per Domain / 1500 per System
Storage	2×1TB
RAID Support	RAID 0 / RAID 1
Memory	8GB
Interfaces	4×GE RJ45
Form Factor	1U Rackmount
TPM	Yes
Data Loss Prevention	Yes
Centralized Quarantine	Yes
Microsoft 365 / Google Workspace API	Optional
Email Routing Performance	250,000 Messages/Hour
Antispam + Virus Outbreak	200,000 Messages/Hour
Enterprise ATP Performance	150,000 Messages/Hour
Cloud API Email Routing	83,000 Messages/Hour
Cloud API Antispam + Virus Outbreak	72,000 Messages/Hour
Cloud API Enterprise ATP	58,000 Messages/Hour
Power Consumption (Average)	77 W
Maximum Power Consumption	113 W
Weight	11 kg

Secure Business Email with Novasis

Selecting the right email security platform requires balancing protection, performance, scalability, and operational simplicity. Novasis helps organizations evaluate, deploy, and optimize FortiMail solutions based on their email volume, compliance requirements, and security objectives.

Whether you are securing Microsoft 365, Google Workspace, Exchange, or hybrid email environments, our specialists can help design a FortiMail architecture that strengthens protection against phishing, ransomware, malware, and business email compromise attacks.