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MetaDefender Email Security Solutions vs Mimecast Email and Collaboration Threat Protection comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 11, 2026

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

MetaDefender Email Security...
Ranking in Secure Email Gateway (SEG)
13th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
3
Ranking in other categories
Email Security (36th)
Mimecast Email and Collabor...
Ranking in Secure Email Gateway (SEG)
3rd
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
39
Ranking in other categories
Email Archiving (2nd), Secure Web Gateways (SWG) (15th), Office 365 Protection (2nd)
 

Mindshare comparison

As of May 2026, in the Secure Email Gateway (SEG) category, the mindshare of MetaDefender Email Security Solutions is 2.6%, up from 1.0% compared to the previous year. The mindshare of Mimecast Email and Collaboration Threat Protection is 15.9%, up from 11.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Mimecast Email and Collaboration Threat Protection15.9%
MetaDefender Email Security Solutions2.6%
Other81.5%
Secure Email Gateway (SEG)
 

Featured Reviews

RM
Senior Information Systems Engineer at Liberty Pumps, Inc.
Helpful support, and useful dashboards
They offer a feature called SmartLink neutralization. I have tried it before. It seemed to work most of the time; however, I had a few users for whom it just wouldn't work. Whenever they click on a link, it stays on the MetaDefender page, saying that it's scanning it and never moves forward. I haven't tried it in a while since then. Since I can't turn it off on a per-user basis, I had to turn it off globally. I have certain exceptions for not doing the sanitization, and how to set those up is not intuitive. It would be useful if there were a better way of doing that. Using digital certificates is hard. It would be better if it used Windows Servers' built-in certificate management.
HS
Email Security Engineer at Logic Infosecurity
Experience high detection and user-friendly policies with reliable email security implementation
The system is not user-friendly because you have to create policies that are mapped in a dictionary. As an IT engineer, I understand how it works, but explaining it to another IT person can be difficult. Having more user-friendly dashboards would improve the work experience. In Mimecast Email Security, checking policies in the dictionary or gateway is very complicated, and not everyone understands this process. If you examine the Check Point portal, it's user-friendly with easily accessible tabs that anyone can explore. With Mimecast Email Security, making changes might impact existing mailboxes. The portal is complicated compared to Check Point's user-friendly interface.

Quotes from Members

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

Pros

"The most valuable feature of MetaDefender Email Security is the CDR. Customers purchase this solution specifically for data communication, as the other features can be obtained through other technologies that most customers already possess. Therefore, data communication serves as the foundation for the platform."
"The most valuable feature is called summary reconstruction which is used to deliver encrypted files to users."
"The sanitization is very good."
"We're now certain business-critical mail is perfectly protected in multiple ways."
"The platform's most valuable features are journaling and email archiving, effectively stopping phishing attacks."
"It's really quite user-friendly. In terms of technical superiority and the product itself, there are no complaints. It is really cutting edge."
"I have always found Mimecast to be very responsive; for example, if we see something come through, they address it and it helps to sort out the issues."
"It offers an easy initial setup."
"The security on offer is very good."
"The most valuable feature is the DMARC Analyzer."
"We used Mimecast Mailbox Continuity when we had a power issue, and it works, has been pretty reliable, and the support has been quite good."
 

Cons

"The DLP should be upgraded and has room for improvement."
"Although the number of AV engines is good, it could be better."
"They offer a feature called SmartLink neutralization. I have tried it before. It seemed to work most of the time; however, I had a few users for whom it just wouldn't work. Whenever they click on a link, it stays on the MetaDefender page, saying that it's scanning it and never moves forward."
"Mimecast need to ensure that the body text format is correctly handled and that images are properly embedded in the body text."
"While it's quick and easy, the initial setup could be more user-friendly."
"Mimecast needs to reduce the number of false positive emails; a big pain point for us."
"The product's interface could be improved to be more user-friendly."
"The system is not user-friendly because you have to create policies that are mapped in a dictionary."
"Mimecast needs to reduce the number of false positive emails; a big pain point for us."
"It was not a good experience due to the fact that our main infrastructure had a problem for that entire time."
"I'd like to have better support from the product in the future."
 

Pricing and Cost Advice

"According to our customers, the price of MetaDefender is high and it continues to increase by almost 15 percent each year."
"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."
"For what it is, the product is overpriced."
"It is a bit expensive."
"The product price is moderate. I rate the pricing a five out of ten."
"Compared to the other solutions in the market, Mimecast Email Security with Targeted Threat Protection's pricing is fine."
"Its price is in the middle range. It is a structured licensing model where there are various components that you can add or choose to add or not."
"I'm always going to say the price needs to be lower, but it's reasonable."
"On a scale of one to ten, where one is cheap, and ten is expensive, I rate the pricing a ten."
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Top Industries

By visitors reading reviews
Construction Company
12%
Comms Service Provider
12%
Educational Organization
11%
Healthcare Company
6%
Computer Software Company
11%
Financial Services Firm
9%
Comms Service Provider
6%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise11
Large Enterprise13
 

Questions from the Community

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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...
 

Also Known As

OPSWAT MetaDefender Email Security, MetaDefender Email Gateway Security, MetaDefender Email Security
Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Mimecast Advanced Email Security
 

Overview

 

Sample Customers

Information Not Available
Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Find out what your peers are saying about MetaDefender Email Security Solutions vs. Mimecast Email and Collaboration Threat Protection and other solutions. Updated: April 2026.
893,221 professionals have used our research since 2012.