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Mimecast Email Security vs Relay Network comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Mimecast Email Security
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
32
Ranking in other categories
Office 365 Protection (3rd), Secure Email Gateway (SEG) (4th)
Relay Network
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
Customer Experience Management (72nd)
 

Mindshare comparison

Mimecast Email Security and Relay Network aren’t in the same category and serve different purposes. Mimecast Email Security is designed for Secure Email Gateway (SEG) and holds a mindshare of 12.7%, up 12.6% compared to last year.
Relay Network, on the other hand, focuses on Customer Experience Management, holds 0.6% mindshare, up 0.5% since last year.
Secure Email Gateway (SEG) Market Share Distribution
ProductMarket Share (%)
Mimecast Email Security12.7%
Microsoft Defender for Office 36526.8%
Proofpoint Email Protection20.1%
Other40.4%
Secure Email Gateway (SEG)
Customer Experience Management Market Share Distribution
ProductMarket Share (%)
Relay Network0.6%
Salesforce4.0%
Genesys Cloud CX3.8%
Other91.6%
Customer Experience Management
 

Featured Reviews

RP
Senior Tech. Lead at WE
Block significant threats with enhanced phishing prevention
In terms of efficacy, Proofpoint is better than Mimecast, though it's a little difficult to manage. A distinct advantage of Mimecast is its ability to block phishing and impostor attacks, which are significant threats currently. Security is a major feature where email security tools like Mimecast have delivered value by identifying and preventing phishing emails.
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
8%
Manufacturing Company
7%
Comms Service Provider
5%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise7
Large Enterprise11
No data available
 

Questions from the Community

What do you like most about Mimecast Email Security with Targeted Threat Protection?
The interface of this solution is very easy to navigate and user-friendly. There is no delivery in email and other communications, making it reliable. The configuration is relatively easy.
What needs improvement with Mimecast Email Security with Targeted Threat Protection?
Mimecast Email Security can be improved by adding some API integrations. Instead of remaining a traditional gateway, Mimecast Email Security needs to provide API solutions similar to Check Point.
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Also Known As

Mimecast Email Security with Targeted Threat Protection
No data available
 

Overview

 

Sample Customers

Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Citizens Bank, Direct Energy, Independence Blue Cross, Travel Leaders
Find out what your peers are saying about Microsoft, Proofpoint, Abnormal AI and others in Secure Email Gateway (SEG). Updated: November 2025.
879,310 professionals have used our research since 2012.