

Mimecast Advanced Email Security and Retarus Email Security are crucial solutions in the corporate email protection market. Mimecast has an advantage in affordability and support, while Retarus excels with a comprehensive features suite and superior encryption.
Features: Mimecast Advanced Email Security offers URL filtering, attachment sandboxing, and impersonation fraud defense, providing strong protection. Retarus Email Security provides advanced threat protection, email encryption, and data loss prevention, with outstanding encryption capabilities appealing to businesses requiring stringent data protection.
Ease of Deployment and Customer Service: Mimecast offers a cloud-based deployment model emphasizing simplicity and quick setup, backed by responsive customer support ensuring seamless integration. Retarus, while also cloud-based, features customizable deployment options with consistent but reportedly less immediate customer service. Mimecast's straightforward solution is often more appealing to businesses.
Pricing and ROI: Mimecast is known for competitive pricing, balancing cost and features with a quick return on investment for those valuing support and affordability. Retarus, despite higher setup costs, presents a compelling ROI for companies focusing on comprehensive security features and long-term efficiency gains.
| Product | Mindshare (%) |
|---|---|
| Mimecast Advanced Email Security | 14.1% |
| Retarus Email Security | 1.2% |
| Other | 84.7% |


| Company Size | Count |
|---|---|
| Small Business | 19 |
| Midsize Enterprise | 13 |
| Large Enterprise | 21 |
Mimecast Email Security protects organizations against phishing, malware, business email compromise, and impersonation attacks, with detection built on 20 years of experience and over 1.3 billion emails inspected daily. It's available as a secure email gateway (MX-based) for full control over complex, multi-region environments, or via API integration with Microsoft 365, which deploys in hours with no MX changes. Administrators get a single console for policy management, monitoring external communications, and customizing configurations, and can pair it with Mimecast Cloud Archive for long-term email retention and compliance.
What key features should users explore?
What benefits can impact ROI?
Industries and use cases
Mimecast Email Security is used across industries, including healthcare and finance, to secure inbound and outbound communications and support compliance requirements. Enterprises use it as a gateway, an API-based layer on top of Microsoft 365, or both, depending on how much control versus deployment speed they need.
Retarus Email Security offers a comprehensive range of email protection services tailored to protect businesses from evolving threats. With advanced threat intelligence and seamless integration, it ensures secure and reliable communication.
Designed for businesses needing robust email protection, Retarus Email Security leverages cutting-edge technology to safeguard against spam, malware, and phishing attacks. It intelligently filters messages, detects threats in real-time, and provides administrators with enhanced control to ensure the highest levels of security and compliance. Its scalable features make it suitable for enterprises of all sizes.
What key features does Retarus Email Security provide?Retarus Email Security is implemented across industries like finance, healthcare, and logistics, enhancing their communication security. Finance firms use it to protect sensitive transactions, healthcare organizations ensure patient data confidentiality, and logistics companies guard against phishing threats in supply chain operations.
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