Barracuda Email Security
by Barracuda Networks
Covered
6
controls
Partial
3
controls
Gaps
2
controls
Overview
Barracuda Email Security by Barracuda Networks is an email security solution that covers 6 NIST 800-171 controls (5% total coverage). It addresses key requirements in the email security domain for defense contractors pursuing CMMC compliance.
Implementation Notes
Deploy Barracuda Email Security with FIPS-validated configurations. Integrate with your SIEM for centralized audit logging. Review partial controls quarterly to identify supplementary tooling needs.
More Email Security Products
Implementation Guidance for Barracuda Email Security
Configure Barracuda Email Security for NIST 800-171 compliance by implementing the following control mappings: For AC-4 (Information Flow Enforcement), enable Data Loss Prevention (DLP) policies under Protection > Data Protection to scan outbound emails for CUI patterns using regex rules for SSNs, classified markings, and proprietary data. Configure quarantine actions for violations and enable manager approval workflows. For SC-7 (Boundary Protection), activate Advanced Threat Protection with sandboxing under Security > Advanced Threat Protection, setting CPU emulation timeout to 180 seconds and enabling URL rewriting for inbound links. Configure mail flow rules to block executable attachments and enforce TLS encryption for external communications. For AU-3 (Audit and Accountability), enable comprehensive logging under Administration > Audit Log, capturing all email transactions, policy violations, and administrative changes. Set log retention to 1 year minimum and configure syslog forwarding to your SIEM (Splunk/QRadar) using UDP 514. For SC-8 (Transmission Confidentiality), enforce TLS 1.2+ encryption policies under Mail Flow Policy > Encryption, requiring encrypted delivery for all outbound emails containing CUI. Generate assessment evidence through Message Log exports (CSV format), DLP incident reports showing policy enforcement, and quarterly compliance dashboards. Integrate with Active Directory for user authentication and Microsoft 365/Exchange for seamless mail flow. Common misconfigurations include: insufficient DLP rule coverage missing ITAR/EAR keywords, disabled attachment sandboxing reducing malware detection, and inadequate log retention periods failing audit requirements. Ensure bypass rules don't exempt CUI-handling users and validate encryption policies apply to all external domains.
Gap Analysis & Compensating Controls
The 2 uncovered NIST 800-171 controls represent critical gaps in comprehensive compliance coverage. SI-4 (System Monitoring) gaps include lack of endpoint behavior analytics and network-level threat hunting capabilities beyond email traffic - Barracuda only monitors email channels, missing broader system compromise indicators. Address this gap by implementing Crowdstrike Falcon or SentinelOne for endpoint detection and response, integrating their APIs with Barracuda's threat intelligence feeds. The second gap in AC-2 (Account Management) occurs because Barracuda doesn't provide user lifecycle management or privileged access controls for system administration beyond basic RBAC. Deploy CyberArk PAM or Microsoft PIM to manage privileged accounts accessing Barracuda admin consoles, ensuring proper approval workflows and session recording. Document these gaps in your System Security Plan (SSP) Section 13.2 (Control Implementation Summary) and create POA&M items with risk ratings of 'Medium' for SI-4 and 'High' for AC-2 given privileged access implications. For CMMC assessments, prioritize closing the AC-2 gap first (Practice AC.L2-3.1.1 weight: 3 points) before SI-4 (Practice SI.L2-3.14.1 weight: 1 point). Consider interim compensating controls like enhanced logging and manual access reviews documented in your configuration management procedures until permanent solutions deploy.
Compliance Cost Estimate
Barracuda Email Security licensing ranges from $3-8 per user per month depending on feature set, with Advanced Threat Protection adding $2-4/user/month premium. For a typical 500-user defense contractor, expect $18,000-60,000 annually in licensing costs. Professional services implementation runs $15,000-25,000 including policy configuration, Active Directory integration, and compliance reporting setup. Ongoing maintenance requires 0.5 FTE security administrator time (~$50,000 annually) for policy tuning, log analysis, and quarterly compliance reporting. Compared to competitors, Barracuda offers mid-range pricing - Microsoft Defender for Office 365 Plan 2 costs $2/user/month but requires additional DLP licensing, while Proofpoint Enterprise Protection averages $8-12/user/month with stronger threat intelligence. Total 3-year TCO approximates $150,000-250,000 for complete deployment.
Compliance Cross-References
Barracuda Email Security satisfies multiple DFARS 252.204-7012 requirements including adequate security controls (paragraph b.1) through DLP and encryption enforcement, and incident reporting (paragraph b.2.ii.D) via comprehensive audit logging and automated notifications to security teams. For CMMC Level 2 compliance, it directly supports Access Control (AC.L2-3.1.20) through information flow control policies, System and Communications Protection (SC.L2-3.13.8) via transmission confidentiality enforcement, and Audit and Accountability (AU.L2-3.3.1) through detailed event logging. The solution addresses CMMC assessment objectives AC.L2-3.1.4 (information flow enforcement), SC.L2-3.13.11 (cryptographic protection), and AU.L2-3.3.2 (audit log correlation). However, additional tools remain necessary for System and Information Integrity (SI.L2-3.14.1-7) requiring endpoint monitoring capabilities, and Configuration Management (CM.L2-3.4.1-9) needing asset management platforms. For FedRAMP alignment, Barracuda's government cloud instance supports AC-4, SC-7, SC-8, and AU-3 control families but requires supplementation with infrastructure monitoring tools for complete Low/Moderate impact system authorization.
Frequently Asked Questions
How many NIST 800-171 controls does Barracuda Email Security cover?
Barracuda Email Security covers 6 of 110 NIST 800-171 controls (5%), with 3 partially covered and 2 gaps.
Can Barracuda Email Security alone satisfy CMMC Level 2?
No single tool covers all 110 NIST 800-171 controls. Barracuda Email Security covers 5% and should be part of a layered security stack addressing the remaining controls.
What controls does Barracuda Email Security not cover?
Barracuda Email Security does not cover controls ia-3-5-1, pe-3-10-1. These require supplementary solutions such as physical security controls, additional access management, or media protection tools.
Map Your Full Security Stack
See NIST 800-171 control coverage for 80+ security products.
Open NIST Tool MapperTrack Barracuda Email Security NIST 800-171 coverage updates with AI-powered intelligence
Signals matches SAM.gov opportunities to your profile, monitors regulatory changes, and alerts you before competitors. Free for 90 days.
Start Free — 90 Days