Mimecast Review 2026 - Features, Pricing & Deals

Mimecast is a cloud-based cybersecurity platform that safeguards organizations' email and web applications. The platform combines security, archiving, and continuity solutions to create a defense against digital threats.

The service focuses on protecting company communications from phishing, malware, ransomware, and business email compromise while maintaining constant email availability. It integrates with email systems via API and uses multiple detection engines powered by AI and machine learning to scan threats in real time.

The tool includes threat detection, URL scanning, and attachment sandboxing. Web security components block harmful websites and monitor cloud applications, while data loss prevention tools help keep sensitive information secure. Users also get access to security awareness training modules that reduce human risk, plus DMARC Analyzer for email impersonation protection.

Several subscription options are available to match different business needs. The basic Protect plan offers AI-powered email security, while Protect Plus adds continuity and data protection. Custom plans provide more solutions for specific organizational requirements.

The platform is managed through the Mimecast Administration Console, where IT teams can configure policies and monitor threats across email, web, and collaboration channels. It integrates with Microsoft 365 and Google Workspace, making it straightforward for organizations already using these platforms.

• Advanced Email Security: Protects organizations from email threats including phishing, malware, ransomware, and business email compromise using AI-powered detection engines, machine learning, and real-time scanning of links and attachments.
• DMARC Analyzer: Provides email impersonation protection by analyzing and managing DMARC policies to prevent attackers from spoofing your domain.
• Web Protection: Blocks malicious websites, monitors cloud applications, and provides browser isolation to prevent phishing and malware attacks across network and off-network environments.
• Data Loss Prevention: Implements predefined templates and policies to secure sensitive information through content control, encryption, and compliance management.
• Security Awareness Training: Delivers targeted employee training modules to reduce human risk and improve threat recognition through short lessons and simulated phishing tests.
• Mimecast Administration Console: Offers centralized policy configuration, real-time reporting, and dashboard analytics for managing security across email, web, and collaboration channels.
• Email Continuity and Archiving: Ensures uninterrupted email access during system outages and simplifies compliance through cloud-based archiving solutions.
• Threat Intelligence: Uses insights from billions of daily signals to identify and block emerging threats before they reach your organization.

• Protect Plan focuses on AI-powered email security with features like AI-enhanced detections, social graphing, and phishing protection.
• Protect Plus Plan enhances email security with additional features such as email continuity and data protection.
• Custom Plan provides protection for communications, people, and data, with options for DMARC management and cloud archiving.
• Exact pricing details are not publicly listed and require direct contact with Mimecast sales representatives for customized quotes based on organizational needs and scale.

Mimecast uses multiple layers of protection to keep your email safe. It scans all incoming messages with several detection engines powered by AI and machine learning to catch malware, spam, phishing, ransomware, and business email compromise attempts before they reach your inbox. The system also checks email links in real-time and uses attachment sandboxing to convert suspicious files into safe formats. Their threat intelligence draws from billions of daily signals to spot advanced threats that traditional systems might miss, including targeted attacks that try to impersonate your colleagues or partners.

Mimecast offers email continuity that keeps you working even during outages. If your primary email system fails, Mimecast automatically activates its continuity service. You'll still be able to send, receive, and search for emails through Mimecast's web portal or mobile app. This means no downtime and no missed messages, which is especially important during critical business periods or emergencies.

Yes. Mimecast integrates with both Microsoft 365 and Google Workspace through API connections. The integration is straightforward and adds extra security layers that complement the built-in protections these platforms offer. Many companies use Mimecast alongside these services to get more threat detection, better archive searching, and added protection against sophisticated attacks. Setup typically takes just a few steps, and your IT team won't need to make major changes to your existing email flow.

When you get an email with links, Mimecast checks each URL at the time you click it, not just when the email arrives. This real-time scanning is crucial because malicious websites often appear safe initially but turn dangerous later. If you click a suspicious link, Mimecast will block access and show you a warning page instead. For links that seem okay but might be risky, the system can display them in a safe, isolated browser so nothing harmful reaches your device.

Sometimes, yes. Users report that Mimecast can be overly aggressive in its filtering, occasionally blocking legitimate emails. This is a common challenge with any security platform that prioritizes protection. You'll likely need to spend time adjusting policies and reviewing quarantined messages, especially after initial setup. The admin console lets you fine-tune settings to reduce false positives, but expect some manual intervention to get the balance right for your organization's specific needs.