Mimecast Data Leak Prevention
Mimecast Data Leak Prevention: Focused email DLP for Microsoft environments, with detailed inspection and policy controls. Ranked #21 of 26 in Data Loss Prevention Software by our editors (7.3/10); pricing: Pricing on request; best for email leakage prevention for Microsoft environments.
At a glance
- Editor score7.3 / 10
- PricingPricing on request
- Best forEmail leakage prevention for Microsoft environments
- DeploymentCloud
- Founded2003 · London, United Kingdom
- Facts checked21 Sep 2026
Where it wins
- Inspects email text, headers, HTML, attachments, images, and patterns
- Blocks, holds, encrypts, or securely delivers policy-triggered messages
- Supports evidence workflows, metadata removal, and granular user controls
Where it doesn't
- Pricing requires contacting sales
- Its core DLP focus is email rather than data discovery
- Broader endpoint and cloud controls depend on higher-tier capabilities
Our verdict on Mimecast Data Leak Prevention
Mimecast Data Leak Prevention is a cloud-based email security service for organizations that need to detect and control sensitive information leaving through email. It examines message body text, headers, subjects, HTML, attachments, dictionaries, regular expressions, images, and fuzzy hashes. Administrators can apply policies to specific users and groups, then block, hold, copy, encrypt, securely deliver, or annotate messages. The product suits Microsoft-centered organizations that want centralized email policy management, incident evidence, review queues, and secure handling of sensitive messages.
Pricing is contact-sales only. The Advanced plan adds data protection to email security. Professional expands protection across endpoints, cloud, and email, and includes cases, forensic search, pre-built integrations, and API base access. Enterprise adds extended event retention, cases archival, and enhanced API integrations. Gov provides a FedRAMP-authorized SaaS solution for government organizations. This structure makes the right tier depend on whether the requirement is email control alone or broader insider-risk and investigation capabilities.
Microsoft Exchange, Microsoft 365, Secure Active Directory, and Microsoft Outlook are listed integrations, while web, API, Windows, and macOS are supported platforms. The service also provides policy-based TLS encryption for email in transit, Secure Messaging for sharing sensitive information within Mimecast’s network, document metadata removal, and conversion to PDF or ODF. It is a strong fit for email leakage prevention and incident review, but organizations seeking dedicated data discovery, removable-media controls, or a clearly defined broad cloud-app DLP scope should consider a wider platform instead.
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Mimecast Data Leak Prevention pricing
All 4 Mimecast Data Leak Prevention plans and prices →
Mimecast Data Leak Prevention fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Not verified |
| Deployment | Cloud |
| Endpoint controls | No |
| Network controls | Yes |
| Cloud app controls | No |
| Data discovery | No |
| Removable media control | No |
| Incident workflows | Yes |
| Deployment | Cloud |
| Platforms | Web, Windows, macOS |
| Compliance & security | SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS |
| Support | Phone, Tickets, Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 4 integrations: Microsoft Exchange, Microsoft 365, Secure Active Directory, Microsoft Outlook |
| Pricing | Pricing on request (source) |
| Website | mimecast.com |
| Facts checked | 21 Sep 2026 |
Mimecast Data Leak Prevention integrations
Mimecast Data Leak Prevention lists 4 integrations on its own site.
- Microsoft Exchange
- Microsoft 365
- Secure Active Directory
- Microsoft Outlook
Alternatives to Mimecast Data Leak Prevention
- Cloudflare Data Loss PreventionBroad DLP coverage with a free plan and transparent $7 monthly pricing.9.4
- Zscaler Data Loss PreventionA broad cloud DLP platform for organizations protecting data across distributed environments.9.2
- Palo Alto Networks Enterprise DLPA broad, enterprise-focused DLP service with advanced detection and centralized incident workflows.9.1
See all Mimecast Data Leak Prevention alternatives →
Also Ranked In
Mimecast Data Leak Prevention is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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