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Mimecast Email Security Reviews

Vendor: Mimecast
4.0 out of 5
Badge Leader

What is Mimecast Email Security?

Featured Mimecast Email Security reviews

Mimecast Email Security mindshare

Product category:
As of July 2025, the mindshare of Mimecast Email Security in the Secure Email Gateway (SEG) category stands at 11.9%, down from 15.8% compared to the previous year, according to calculations based on PeerSpot user engagement data.
Secure Email Gateway (SEG)

PeerResearch reports based on Mimecast Email Security reviews

TypeTitleDate
CategorySecure Email Gateway (SEG)Jul 27, 2025Download
ProductReviews, tips, and advice from real usersJul 27, 2025Download
ComparisonMimecast Email Security vs Microsoft Defender for Office 365Jul 27, 2025Download
ComparisonMimecast Email Security vs Abnormal SecurityJul 27, 2025Download
ComparisonMimecast Email Security vs Proofpoint Email ProtectionJul 27, 2025Download
Suggested products
TitleRatingMindshareRecommending
Microsoft Defender for Office 3654.228.5%96%52 interviewsAdd to research
Proofpoint Email Protection4.221.6%95%52 interviewsAdd to research
 
 
Key learnings from peers

Valuable Features

Room for Improvement

ROI

Pricing

Popular Use Cases

Service and Support

Deployment

Scalability

Stability

Review data by company size

By reviewers
By visitors reading reviews

Top industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
7%
Manufacturing Company
7%
Comms Service Provider
6%
Legal Firm
5%
Retailer
5%
Government
4%
Insurance Company
4%
Construction Company
4%
Educational Organization
4%
Healthcare Company
4%
University
4%
Real Estate/Law Firm
4%
Wholesaler/Distributor
3%
Non Profit
3%
Performing Arts
3%
Outsourcing Company
2%
Media Company
2%
Recreational Facilities/Services Company
2%
Energy/Utilities Company
2%
Transportation Company
2%
Hospitality Company
1%
Logistics Company
1%
Consumer Goods Company
1%
Marketing Services Firm
1%
Aerospace/Defense Firm
1%
Renewables & Environment Company
1%

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Mimecast Email Security customers

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Mimecast Email Security reviews

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RP
Senior Tech. Lead at WE
Verified user of Mimecast Email Security
Nov 23, 2024
Block significant threats with enhanced phishing prevention

Pros

"In terms of efficacy, Proofpoint is better than Mimecast, though it's a little difficult to manage. "

Cons

"Mimecast needs to reduce the number of false positive emails; a big pain point for us. "
MP
Senior Security Engineer at ManpowerGroup
Verified user of Mimecast Email Security
Jun 26, 2025
Discuss features that effectively intercept threats while considering deployment improvements

Pros

"The reviewer gave Mimecast Email Security a rating of 10 out of 10."

Cons

"We discussed the phishing aspect, the DNS system, and the key rotation."
Find out what your peers are saying about Mimecast Email Security. Updated July 2025
863,651 professionals have used our research since 2012.
RC
Information Security Analyst at Enfield Central Library
Verified user of Mimecast Email Security
Mar 5, 2025
Gain visibility into email interactions and remediate threats effectively

Pros

"I would rate Mimecast Email Security a nine out of ten."
ShaheenKapery - PeerSpot user
Solutions Architect at Altron
Verified user of Mimecast Email Security
May 22, 2024
Provides valuable security features and has a straightforward setup process

Pros

"The integration is straightforward. "

Cons

"The platform's cost-effectiveness could be improved. "
Frank Rawson - PeerSpot user
Managing Director at Conekt Business Group
Verified user of Mimecast Email Security
May 27, 2023
It gives clients peace of mind and helps them educate their users about threats

Pros

"We like Mimecast's spam filtering. The email signature feature is also a big plus for our users. "

Cons

"Lately, Mimecast's outbound mail servers have been regularly blocklisted by spam filters. That didn't happen a few years back, but it seems to be a more frequent problem these days. When a server is blocklisted, it means all of my outgoing mail ends up in the recipient's junk mail. That affects my reputation and business confidence. "
Clinton Ramkelawan - PeerSpot user
Senior Manager at Massmart
Verified user of Mimecast Email Security
Sep 15, 2022
A reasonably-priced solution that offers good retention policies and is very scalable

Pros

"In the current environment that the world is in, everyone is trying to hack everyone else, so Project+ definitely helps a lot there."

Cons

"The reaction time between a new threat being identified and Mimecast picking it up needs to be narrowed a bit. "
PeerSpot user
Group CIO at a construction company with 10,001+ employees
Verified user of Mimecast Email Security
Dec 3, 2023
Easy-to-setup product with valuable features for impersonation protection

Pros

"The product's most valuable features are impersonation protection and phishing countermeasures. "

Cons

"They could provide a unified licensing model, including all the security features. "
PeerSpot user
Senior Head of IT at a construction company with 51-200 employees
Verified user of Mimecast Email Security
Aug 24, 2023
The product is not scalable, and the features do not work properly, though URL inspection works pretty well

Pros

"URL inspection works pretty well."

Cons

"The attachment scanning feature doesn't work properly."