

Mimecast Advanced Email Security and Microsoft Purview Customer Lockbox are competitors in email security and data access control. Mimecast gains an edge with its straightforward deployment and strong support, while Microsoft Purview stands out for its extensive features, justifying its higher cost.
Features: Mimecast Advanced Email Security offers threat intelligence, rapid email scanning, and real-time protection against malware and phishing. Microsoft Purview Customer Lockbox emphasizes granular data access control, advanced compliance, and integrated governance with Microsoft 365.
Ease of Deployment and Customer Service: Mimecast features a simple deployment model backed by strong customer support. Microsoft Purview, though integrated with Microsoft 365, may create a more complex deployment process, yet its integration can offer advantages.
Pricing and ROI: Mimecast Advanced Email Security provides a cost-effective solution with a notable return on investment due to security efficiency. Microsoft Purview Customer Lockbox may require a higher initial cost, yet the rich feature set can be justified for those who prioritize detailed data access control.
| Product | Market Share (%) |
|---|---|
| Mimecast Email Security | 24.9% |
| Microsoft Purview Customer Lockbox | 1.6% |
| Other | 73.5% |

| Company Size | Count |
|---|---|
| Small Business | 19 |
| Midsize Enterprise | 11 |
| Large Enterprise | 13 |
Most operations, support, and troubleshooting performed by Microsoft personnel and sub-processors do not require access to customer data. In those rare circumstances where such access is required, Customer Lockbox for Microsoft Azure provides an interface for customers to review and approve or reject customer data access requests. It is used in cases where a Microsoft engineer needs to access customer data, whether in response to a customer-initiated support ticket or a problem identified by Microsoft.
Mimecast Advanced Email Security offers advanced features like sandboxing, email archiving, and phishing protection. It's known for integration with Microsoft 365 and user-friendly admin management, making it a robust choice for secure communications.
Focused on safeguarding emails, Mimecast Advanced Email Security integrates seamlessly with Microsoft 365, providing features such as sandboxing, spam filtering, and email archiving. It delivers comprehensive protection against phishing, identity threats, and impersonation attempts. Administrators benefit from the ability to monitor external communications and customize configurations, enhancing email security. Users appreciate the intuitive admin console and responsive support team. Although it faces challenges in threat detection rates and administration complexity, its capabilities in email monitoring, spam filtering, and URL inspection remain valued by enterprises seeking reliable email security that supports compliance needs.
What key features should users explore?Mimecast Advanced Email Security is implemented across industries to protect against email threats like phishing, spam, and malicious attachments. It serves as both a gateway and an archiving tool, supporting compliance in healthcare and finance by offering features like URL protection and data loss prevention. Enterprises leverage its capabilities to secure inbound and outbound communications effectively.
We monitor all Office 365 Protection reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.