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Mimecast Email and Collaboration Threat Protection Reviews

Vendor: Mimecast
4.0 out of 5
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What is Mimecast Email and Collaboration Threat Protection?

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.

Get the Mimecast Email and Collaboration Threat Protection Buyer's Guide and find out what your peers are saying about Mimecast Email and Collaboration Threat Protection, Microsoft Defender for Office 365, Cisco Umbrella and more!
Mimecast Email and Collaboration Threat Protection is the #3 ranked solution in top Office 365 Protection solutions and #4 ranked solution in top Secure Email Gateway (SEG) solutions. PeerSpot users give Mimecast Email and Collaboration Threat Protection an average rating of 8.0 out of 10. Mimecast Email and Collaboration Threat Protection is most commonly compared to Microsoft Defender for Office 365: Mimecast Email and Collaboration Threat Protection vs Microsoft Defender for Office 365. Mimecast Email and Collaboration Threat Protection is popular among the large enterprise segment, accounting for 39% of users researching this solution on PeerSpot. The top industry researching this solution are professionals from a computer software company, accounting for 14% of all views.
Buyer's Guide
Mimecast Email and Collaboration Threat Protection
January 2026
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Mimecast Email and Collaboration Threat Protection mindshare

Product category:
Secure Email Gateway (SEG)
As of February 2026, the mindshare of Mimecast Email and Collaboration Threat Protection in the Secure Email Gateway (SEG) category stands at 16.5%, up from 11.6% compared to the previous year, according to calculations based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Market Share Distribution
ProductMarket Share (%)
Mimecast Advanced Email Security16.5%
Microsoft Defender for Office 36521.4%
Proofpoint Email Protection20.9%
Other41.2%
Secure Email Gateway (SEG)

PeerResearch reports based on Mimecast Email and Collaboration Threat Protection reviews

TypeTitleDate
CategorySecure Email Gateway (SEG)Feb 11, 2026Download
ProductReviews, tips, and advice from real usersFeb 11, 2026Download
ComparisonMimecast Email and Collaboration Threat Protection vs Microsoft Defender for Office 365Feb 11, 2026Download
ComparisonMimecast Email and Collaboration Threat Protection vs Proofpoint Email ProtectionFeb 11, 2026Download
ComparisonMimecast Email and Collaboration Threat Protection vs Abnormal SecurityFeb 11, 2026Download
Suggested products
TitleRatingMindshareRecommending
Microsoft Defender for Office 3654.221.4%96%60 interviewsAdd to research
Cisco Umbrella4.4N/A97%123 interviewsAdd to research
 
 
Key learnings from peers
Last updated Feb 11, 2026

Valuable Features

Mimecast Advanced Email Security offers features like 99-year retention, sandboxing for attachments, stable gateway, and valuable archival services. Its security effectiveness includes filtering threats and inspecting URLs. Users highlight ease of use and integration with Microsoft 365. It excels in identity protection, spam filtering, and threat remediation. Features like impersonation protection, phishing countermeasures, journaling, and DMARC Analyzer are valued. Its user-friendly interface and scalability make it a top choice for advanced email protection.
  • "If I had to mention one or two things that bring the biggest benefit, I would say the security of the emails and dealing with everything."
  • "I have been satisfied with Mimecast Email Security as a good solution."
  • "Based on overall experience, Mimecast Email Security is the best solution for traditional gateways."

Room for Improvement

Mimecast Advanced Email Security requires improvement in various areas. Users note issues with installation complexity and a cumbersome interface. There are concerns about the effectiveness of threat detection, support response times, and false positives. The pricing is considered high, and there are reports of blocklisted outgoing servers. Improving identity protection features and simplifying policy management would be beneficial. There's also a need for better filtering flexibility, more AI features, and enhanced API integrations.
  • "As for areas for improvement within Mimecast Web Security, I believe there is quite a lot that can be improved."
  • "Mimecast Email Security is somewhat expensive compared to the competition in the Indian market, and the local presence is lacking as they do not have a local representative currently."
  • "The system is not user-friendly because you have to create policies that are mapped in a dictionary."

ROI

Mimecast Advanced Email Security offers a noteworthy return on investment through high levels of email protection against threats, enhancing operational efficiency. Though challenging to quantify precisely, users find its various features, including URL-based protections, valuable compared to competitors. It effectively blocks phishing attempts, minimizing potential financial risks. Despite some concerns regarding support and stability, the overall protection justifies the investment for many. The threat dashboard provides insights into its success in safeguarding users from breaches.

Pricing

Mimecast Advanced Email Security pricing is often perceived as expensive, especially when compared to competitors like Microsoft and Barracuda. Users note the cost is per-user with additional fees for support and features like archival services. Discount tiers are available based on organization size. Some clients get significant discounts, paying around 40% of the list price. There are mixed opinions on its value for money, with some finding its pricing reasonable given its return on investment.
  • "The product price is moderate. I rate the pricing a five out of ten."
  • "The solution is expensive."
  • "Compared to the other products in the market, it is neither cheap but nor very expensive. I would rate it somewhere in the middle, 5 out of 10."

Popular Use Cases

Mimecast Advanced Email Security is primarily utilized for email threat protection and archiving within various enterprises. It serves to filter phishing, spam, and spear-phishing emails while protecting attachments and URLs. It is trusted for HIPAA compliance, tracking message deliveries, and ensuring data loss prevention. As a cloud-based service, Mimecast integrates seamlessly into company infrastructures, providing email signature management and DMARC utilization, benefiting organizations regardless of size.

Service and Support

Customers express satisfaction with Mimecast Advanced Email Security's support, praising responsiveness and effectiveness. Many find technical help informative and quick to resolve issues, although some express frustration over dependence on documentation instead of direct communication. Service is described as good but with room for faster responses. A consensus rates support between seven and eight out of ten, though a few users indicate some decline in quality or inflexibility over time.

Deployment

Many users found Mimecast Advanced Email Security's initial setup straightforward, with deployment taking one to two days. Some experienced moderate complexity, needing to adjust security rules or make DNS changes. Complexity varied with organization size and expertise; large enterprises encountered more challenges. Users appreciated the supportive Mimecast team. Generally, the process was manageable with assistance, quick for those with experience, and not overly complex, frequently requiring one or two people for implementation.

Scalability

Mimecast Advanced Email Security is widely recognized as scalable, being able to accommodate varied user bases, from SMBs to large enterprises. Scalability is generally rated high, with flexibility in expanding user numbers and geography. Some reported minor challenges, particularly with secure messaging. Despite some inconsistencies with Microsoft's IP reputation impact, users typically report seamless expansion for thousands. Though scalability ratings vary, many convey strong performance in accommodating diverse organizational needs.

Stability

Mimecast Advanced Email Security is generally considered stable and reliable. Users mention it as bug-free, with no crashes or freezes, praising its fast performance. Some instances of downtime and login issues have been noted but are rare. Ratings vary, with several users giving it high marks for stability, while a few report minor issues. Occasional unexpected downtime has been noted, but many users consistently find Mimecast an effective choice for email security.
These insights are based on the in-depth reviews provided by peers to help you make a better buying decision.
Download our Mimecast Email and Collaboration Threat Protection Buyer's Guide for additional reliable information.

Review data by company size

By reviewers
Company SizeCount
Small Business17
Midsize Enterprise10
Large Enterprise11
By reviewers
By visitors reading reviews
Company SizeCount
Small Business330
Midsize Enterprise210
Large Enterprise349
By visitors reading reviews

Top industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
8%
Manufacturing Company
6%
Comms Service Provider
5%
Government
5%
Insurance Company
5%
Educational Organization
4%
Legal Firm
4%
Outsourcing Company
4%
Construction Company
4%
Retailer
4%
Real Estate/Law Firm
4%
Non Profit
3%
Healthcare Company
3%
University
3%
Performing Arts
3%
Wholesaler/Distributor
2%
Recreational Facilities/Services Company
2%
Media Company
2%
Logistics Company
2%
Transportation Company
2%
Energy/Utilities Company
2%
Hospitality Company
1%
Marketing Services Firm
1%
Renewables & Environment Company
1%
Wellness & Fitness Company
1%

Compare Mimecast Email and Collaboration Threat Protection with alternative products

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Learn more about Mimecast Email and Collaboration Threat Protection

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?
  • Sandboxing: Analyzes attachments in a secure environment to detect threats.
  • Email Archiving: Provides secure long-term storage of emails for compliance.
  • Spam Filtering: Prevents unsolicited emails from clogging the inbox.
  • URL Inspection: Checks links in emails for malicious content.
  • Phishing Protection: Guards against deceptive tactics to protect sensitive data.
What benefits can impact ROI?
  • Regulatory Compliance: Facilitates adherence to standards such as HIPAA.
  • Integration: Enhances existing systems with seamless Microsoft 365 integration.
  • Support: Offers a responsive support team to resolve issues promptly.
  • Email Security: Improves threat prevention with effective spam and phishing protections.

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.

Mimecast Email and Collaboration Threat Protection was previously known as Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Mimecast Advanced Email Security.

Mimecast Email and Collaboration Threat Protection customers

Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group

Related questions

  • 177
Is Defender for Office 365 enough? Or should we be using a product like Mimecast?
  • 19
Which solution do you prefer: IRONSCALES or Mimecast?
  • 167
When evaluating SEG (Secure Email Gateways), what aspect do you think is the most important to look for?
  • 311
Why is SEG (Secure Email Gateways) important for companies?

Product Categories

Product Categories
Secure Email Gateway (SEG)
Email Archiving
Secure Web Gateways (SWG)
Office 365 Protection

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Mimecast Email and Collaboration Threat Protection Reviews Summary
Author infoRatingReview Summary
Email Security Engineer at Logic Infosecurity5.0I've used Mimecast Email Security for two years and find it the best traditional email gateway, with strong phishing protection and stability, though its interface is complex and could benefit from improved API integration and user-friendliness.
IT Manager at a logistics company with 201-500 employees3.5I've used Mimecast Web Security for over five years, finding it effective in email and URL protection, though improvements are needed. Stability and reporting are decent, but I rely on my MSP for management, support, and monitoring.
Senior Security Engineer at ManpowerGroup4.0I use Mimecast Email Security mainly for intercepting phishing attempts. Its AI-driven structure, Abnormal functionality, and targeted threat protection are effective. However, improvements are needed in phishing, DNS, and key rotation. I find it to be cost-effective overall.
Senior Tech. Lead at WE4.0We are conducting a POC to compare Mimecast with other email security solutions. Mimecast effectively blocks phishing and impostor attacks, although it requires improvement in reducing false positives. It offers ROI by mitigating financial risks associated with phishing.
Information Security Analyst at Enfield Central Library4.5I've been using Mimecast Email Security for four years as our primary email gateway, efficiently scanning and removing threats before reaching users. The tool offers valuable insights into email interactions and has no significant areas needing improvement.
Co-Founder & VP-Sales at QuantumShield Technologies LLP4.5I've used Mimecast Email Security for seven months and find its features like archiving and data loss prevention useful. While it's stable and effective, it's pricey in India and lacks local support. I'd rate it nine out of ten.
Managing Director at Conekt Business Group4.0I use Mimecast for email security across my clients, benefiting from its effective spam filtering and email signature features. However, frequent blocklisting of outbound servers has become a concern. Although its ROI is hard to quantify, it's our preferred solution.
Senior IT Specialist at COMMUNITY HEALTH CONNECTIONS INC3.5We are a nonprofit healthcare provider needing HIPAA compliance, and Mimecast assists us by scanning emails for privacy issues, blocking suspicious URLs, and filtering spam. Its HIPAA dictionary is valuable, but the interface is cumbersome and support could improve.