Mimecast
Email security, insider risk and archiving platform for organizations
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Pricing
Contact for pricing
API
Yes
Company
Mimecast Services Limited
Founded
2003
Platforms
What is Mimecast?
Mimecast is an email and collaboration security platform. It protects organizations from phishing, business email compromise and other attacks, and also covers insider risk and the governance of employee data. The company calls its approach human risk management: protecting people, data and AI tools on one platform.
The product suite includes Advanced Email Security, Collaboration Threat Protection, Incydr Data Protection for insider threats, the Aware Governance & Compliance Suite, Engage Security Awareness training, DMARC Analyzer, Email Archive and a Managed Threat Response service. In that service, analysts respond 24×7 to emails that users report. Newer features cover shadow AI and the governance of AI agents.
Mimecast says it has about 42,000 customers, from small businesses to large enterprises, and connects to other security tools through 300+ integrations and an API. Pricing is by quote.
Key features
- AI-based email threat and BEC protection
- Threat protection for collaboration tools
- Insider risk and data loss protection (Incydr)
- Governance, compliance and email archiving
- Security awareness training using human risk signals
- DMARC Analyzer for brand protection
- 24×7 managed response to user-reported emails
- AI agent and shadow AI governance
Use cases
Who it's for
Blocking phishing and BEC
Filters email and collaboration traffic to stop phishing and business email compromise attacks.
Insider data protection
Tracks where sensitive data such as source code moves and helps teams respond faster to insider threats.
Compliance archiving
Archives and governs communications to meet regulatory and corporate standards.
Governing AI use
Gives visibility into employee AI tools and agents to reduce the risk of data leaks.
Mimecast pricing
From the vendor's site, checked Nov 11, 2026. Prices change — confirm on their pricing page.
Pricing is by quote: contact the vendor.
How Mimecast compares
- Mimecast has no free plan, and neither do the 2 alternatives below.
- It offers an API, which none of the others do.
| Tool | Starts at | Free plan | Free trial | API | Open source | |
|---|---|---|---|---|---|---|
| MMimecast | Quote | — | — | — | ||
P Proofpoint | Quote | — | — | — | — | Mimecast vs Proofpoint |
A Abnormal AI | Quote | — | — | — | — | Mimecast vs Abnormal AI |
The closest alternatives in our directory by category. “Starts at” is the cheapest paid plan per month, as each vendor lists it.
Pros and cons
Strengths
- Named a Leader in Gartner MQs for Email Security and DCGA
- Covers email, insider risk, archiving and awareness training in one suite
- 300+ integrations and API documentation
- Interface available in English, German, French, Spanish and Italian
Limitations
- No public pricing; quote required
- No free trial offered
Mimecast FAQ
How much does Mimecast cost?
Pricing is not published. You request a quote from Mimecast.
What does Mimecast protect?
Email and collaboration tools, sensitive data from insider threats, and employee use of AI tools. It also provides archiving and compliance features.
Does Mimecast have an API?
Yes. It publishes API documentation and lists 300+ integrations.
Does Mimecast offer DMARC tools?
Yes. DMARC Analyzer is part of the product suite.
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Mimecast
Contact for pricing