Mimecast vs Netscout Arbor Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Apr 2026 8 min read

Mimecast

0.0 (0 reviews)

Mimecast provides an advanced cloud-based security platform designed to protect your organization from email-borne threats, data loss, and downtime while ensuring continuous communication and simplified compliance management.

Starting at --
Free Trial 30 days
VS

Netscout Arbor

0.0 (0 reviews)

Netscout Arbor provides advanced DDoS protection and network visibility solutions to safeguard your digital infrastructure from complex cyber threats and ensure continuous service availability for your enterprise.

Starting at --
Free Trial NO FREE TRIAL

Quick Comparison

Feature Mimecast Netscout Arbor
Website mimecast.com netscout.com
Pricing Model Custom Custom
Starting Price Custom Pricing Custom Pricing
FREE Trial ✓ 30 days free trial ✘ No free trial
Free Plan ✘ No free plan ✘ No free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment saas mobile on-premise saas
Integrations Microsoft 365 Google Workspace Salesforce Splunk ServiceNow Okta CrowdStrike Palo Alto Networks Rapid7 Microsoft Sentinel Cisco Juniper Networks Splunk ServiceNow AWS Microsoft Azure Google Cloud Platform
Target Users mid-market enterprise mid-market enterprise
Target Industries telecommunications finance government
Customer Count 0 0
Founded Year 2003 2000
Headquarters London, UK Westford, USA

Overview

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Mimecast

Mimecast is a comprehensive email security and management platform that protects your business from sophisticated cyberattacks. You can defend your inbox against phishing, ransomware, and impersonation attempts using its AI-powered threat intelligence. Beyond just blocking threats, the platform ensures your email remains functional even during server outages, allowing you to maintain business continuity without interruption.

You can also use the platform to automate data retention and compliance. It provides a centralized cloud archive where you can securely store, search, and retrieve historical communications for legal or regulatory needs. Whether you are a mid-sized company or a global enterprise, the software integrates with your existing Microsoft 365 or Google Workspace environment to create a more resilient digital workplace.

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Netscout Arbor

Netscout Arbor gives you the tools to defend your network against increasingly sophisticated DDoS attacks. By combining deep packet inspection with global threat intelligence, you can identify and mitigate volumetric, TCP state-exhaustion, and application-layer attacks before they impact your services. You get a unified view of your entire network traffic, allowing you to spot anomalies and malicious patterns in real-time across hybrid-cloud environments.

The platform is designed for service providers and large enterprises that cannot afford downtime. You can deploy these solutions as on-premise appliances, virtual instances, or managed cloud services depending on your specific infrastructure needs. It helps you maintain operational continuity by automatically diverting malicious traffic while ensuring your legitimate users experience no disruption in service quality.

Overview

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Mimecast Features

  • Email Security Cloud Gateway Block malicious attachments and URLs before they reach your network using deep content inspection and real-time threat intelligence.
  • Internal Email Protect Detect and remediate threats originating from within your organization to stop the lateral spread of malware or phishing.
  • Mailbox Continuity Keep your employees sending and receiving emails during a primary mail server outage with an automated failover system.
  • Cloud Archive Store all your business communications in a secure, encrypted repository that allows you to perform lightning-fast searches for e-discovery.
  • Awareness Training Reduce human error by launching engaging security videos and phishing simulations to educate your staff on modern cyber risks.
  • DMARC Analyzer Protect your brand reputation by preventing unauthorized parties from sending fraudulent emails using your company's domain name.
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Netscout Arbor Features

  • DDoS Mitigation. Stop complex DDoS attacks automatically before they reach your critical infrastructure and cause costly service outages.
  • Network Visibility. Monitor your entire network traffic in real-time to identify performance bottlenecks and potential security risks immediately.
  • Threat Intelligence. Leverage global data from the ATLAS network to stay protected against the latest malware and botnet behaviors.
  • Hybrid Cloud Protection. Secure your workloads across physical data centers and public cloud environments with a consistent security posture.
  • Automated Response. Configure automated mitigation policies that trigger the moment an attack is detected to minimize manual intervention.
  • Traffic Analysis. Analyze granular flow data to understand how your bandwidth is used and optimize your network performance.

Pricing Comparison

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Mimecast Pricing

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Netscout Arbor Pricing

Pros & Cons

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Mimecast

Pros

  • Highly effective at blocking sophisticated phishing and impersonation attacks
  • Seamless integration with Microsoft 365 and Google Workspace environments
  • Reliable email continuity ensures zero downtime during server maintenance
  • Powerful search capabilities within the cloud archiving feature
  • Granular policy controls allow for highly customized security rules

Cons

  • Initial configuration and setup can be complex for beginners
  • The administrative interface has a steep learning curve
  • Pricing is generally higher than basic built-in security tools
A

Netscout Arbor

Pros

  • Exceptional accuracy in detecting complex application-layer attacks
  • Deep visibility into global threat landscapes via ATLAS
  • Scalable architecture handles massive volumetric attack traffic
  • Highly granular reporting for post-incident forensic analysis

Cons

  • Significant initial investment required for hardware appliances
  • Steep learning curve for configuring advanced mitigation rules
  • Requires dedicated staff to manage complex enterprise deployments
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