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Mimecast Email Security Reviews

Vendor: Mimecast
4.0 out of 5
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What is Mimecast Email Security?

Featured Mimecast Email Security reviews

Mimecast Email Security mindshare

Product category:
As of August 2025, the mindshare of Mimecast Email Security in the Secure Email Gateway (SEG) category stands at 12.4%, down from 15.3% compared to the previous year, according to calculations based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Market Share Distribution
ProductMarket Share (%)
Mimecast Email Security12.4%
Microsoft Defender for Office 36528.1%
Proofpoint Email Protection21.5%
Other38.0%
Secure Email Gateway (SEG)

PeerResearch reports based on Mimecast Email Security reviews

TypeTitleDate
CategorySecure Email Gateway (SEG)Aug 27, 2025Download
ProductReviews, tips, and advice from real usersAug 27, 2025Download
ComparisonMimecast Email Security vs Microsoft Defender for Office 365Aug 27, 2025Download
ComparisonMimecast Email Security vs Abnormal SecurityAug 27, 2025Download
ComparisonMimecast Email Security vs Proofpoint Email ProtectionAug 27, 2025Download
Suggested products
TitleRatingMindshareRecommending
Microsoft Defender for Office 3654.228.1%96%53 interviewsAdd to research
Proofpoint Email Protection4.221.5%95%52 interviewsAdd to research
 
 
Key learnings from peers

Valuable Features

Room for Improvement

ROI

Pricing

Popular Use Cases

Service and Support

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Review data by company size

By reviewers
Company SizeCount
Small Business14
Midsize Enterprise7
Large Enterprise10
By reviewers
By visitors reading reviews
Company SizeCount
Small Business365
Midsize Enterprise257
Large Enterprise448
By visitors reading reviews

Top industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
7%
Manufacturing Company
7%
Comms Service Provider
6%
Legal Firm
5%
Government
4%
Retailer
4%
Insurance Company
4%
Construction Company
4%
Healthcare Company
4%
Educational Organization
4%
University
4%
Real Estate/Law Firm
4%
Wholesaler/Distributor
3%
Non Profit
3%
Performing Arts
3%
Outsourcing Company
3%
Recreational Facilities/Services Company
2%
Media Company
2%
Energy/Utilities Company
2%
Transportation Company
2%
Hospitality Company
1%
Logistics Company
1%
Consumer Goods Company
1%
Aerospace/Defense Firm
1%
Marketing Services Firm
1%
Renewables & Environment Company
1%

Compare Mimecast Email Security with alternative products

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Mimecast Email Security Reviews Summary
Author infoRatingReview Summary
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.
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.
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.
Solutions Architect at Altron5.0I use Mimecast for email security to protect our organization, enhance email handling, and safeguard against viruses. While it's reasonably priced, I find cost-effectiveness could improve. Its value lies in risk mitigation, though ROI can be difficult to quantify.
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 Manager at Massmart4.0No summary available
Group CIO at a construction company with 10,001+ employees4.5We use Mimecast Email Security to combat phishing, spoofing, and impersonation with its valuable features like impersonation protection. Although it generates significant ROI, a unified licensing model could improve it. We switched from a Proofpoint POC based on customer reviews.
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.