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Mimecast Advanced Email Security vs OpenText SecureMail 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 Advanced Email Sec...
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
42
Ranking in other categories
Email Archiving (2nd), Secure Web Gateways (SWG) (15th), Office 365 Protection (2nd), Secure Email Gateway (SEG) (3rd)
OpenText SecureMail
Average Rating
0.0
Number of Reviews
0
Ranking in other categories
Email Security (45th)
 

Mindshare comparison

While both are Messaging and Collaboration solutions, they serve different purposes. Mimecast Advanced Email Security is designed for Secure Email Gateway (SEG) and holds a mindshare of 15.1%, up 11.7% compared to last year.
OpenText SecureMail, on the other hand, focuses on Email Security, holds 0.7% mindshare, up 0.2% since last year.
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Mimecast Email and Collaboration Threat Protection15.1%
Proofpoint Email Protection19.0%
Microsoft Defender for Office 36516.1%
Other49.8%
Secure Email Gateway (SEG)
Email Security Mindshare Distribution
ProductMindshare (%)
OpenText SecureMail0.7%
Proofpoint Email Protection6.8%
Microsoft Defender for Office 3656.3%
Other86.2%
Email Security
 

Featured Reviews

Avinash Mishra - PeerSpot reviewer
Manager - EUC at Finthrive
Advanced email filtering has blocked massive spam volumes and prevents unauthorized data leaks
Improvements for Mimecast Advanced Email Security include enhancing the user interface and accessibility, particularly regarding admin capabilities to add or modify user accounts. Streamlining this could improve overall usability and security management for users. Reporting is another area needing improvement in Mimecast Advanced Email Security, as the reports provided are not very easy to decipher. With artificial intelligence being integrated into various tools including Mimecast Advanced Email Security, I believe there is potential to enhance functionality, enabling users to ask specific questions and retrieve concise answers instead of overwhelming data. I choose a nine for Mimecast Advanced Email Security because improvements such as better user interface and artificial intelligence integration features would greatly enhance its usability. While no tool is perfect, these adjustments could greatly elevate Mimecast Advanced Email Security's capabilities.
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Financial Services Firm
9%
Construction Company
8%
Manufacturing Company
6%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise11
Large Enterprise17
No data available
 

Questions from the Community

What needs improvement with Mimecast Email Security with Targeted Threat Protection?
There is room for improvement since new threats are emerging. Considering the availability of new features would be worthwhile. Mimecast Email Security is somewhat expensive compared to the competi...
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Also Known As

Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Email and Collaboration Threat Protection
Micro Focus Voltage SecureMail, Micro Focus SecureMail, HPE SecureMail, SecureMail
 

Overview

 

Sample Customers

Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Advencia
Find out what your peers are saying about Proofpoint, Microsoft, Mimecast and others in Secure Email Gateway (SEG). Updated: June 2026.
900,747 professionals have used our research since 2012.