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MetaDefender Email Security Solutions vs Sublime Security 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

MetaDefender Email Security...
Ranking in Email Security
32nd
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
3
Ranking in other categories
Secure Email Gateway (SEG) (13th)
Sublime Security
Ranking in Email Security
19th
Average Rating
9.0
Reviews Sentiment
6.6
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Email Security category, the mindshare of MetaDefender Email Security Solutions is 1.0%, up from 0.4% compared to the previous year. The mindshare of Sublime Security is 1.2%, down from 1.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Sublime Security1.2%
MetaDefender Email Security Solutions1.0%
Other97.8%
Email Security
 

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.
reviewer2764257 - PeerSpot reviewer
Manager Security Operations Center at a educational organization with 10,001+ employees
Improves decision-making with clear verdict explanations and works well across multiple environments
I know that a lot of time has been invested in improving the efficacy of the platform, and it shows; it performs very well. Moving forward, I think our focus should be on how to achieve better integration with other systems. While they do provide API-level access and web hooks, I believe more out-of-the-box integrations with SOAR platforms and SIEM tools would enhance Sublime's value. This would allow it to be integrated more closely with the workflows of various teams and could potentially increase its market appeal. From my perspective, the tool itself functions exceptionally well, which gives me confidence in the system. I want to see this functionality extend to other tools that I use, enabling faster automation and improved workflows for the team, particularly from a security operations standpoint. I have no critiques regarding the tool itself. They've done an outstanding job and are maintaining high quality throughout their development process. They have a great product, and it's essential that they continue to uphold that standard, even though it requires significant effort.

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 is called summary reconstruction which is used to deliver encrypted files to users."
"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 sanitization is very good."
"Overall, the auditability and the ability to evaluate the information in Sublime through various mechanisms made me very comfortable with setting these capabilities to auto-remediation."
"I like its ability to detect and block."
"Since I have been using Sublime Security personally, I have noticed specific improvements like fewer spam emails and improved detection, which saves me time."
"This is why it provides absolute value; it adds a smarter layer that catches anything missed by Microsoft 365 or Google Workspace protection, as attackers can breach those systems easily using flexible detection logic that security teams can quickly customize."
 

Cons

"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."
"The DLP should be upgraded and has room for improvement."
"The ability for users to look at their own quarantine box needs improvement. So at the moment, it doesn't give you the ability to see every email that has been quarantined. No end-user has the ability to see what's being quarantined. It's only people who have access to the back-end platform that can actually see what has been quarantined. The end user doesn't know if they have an email that has been quarantined, only if they're expecting something that didn't come through."
"I would say there are very minimal changes needed regarding Sublime Security; for first-time users, it can be difficult knowing how to write the tool."
"To improve Sublime Security, I think the learning curve is the primary concern; it is powerful, but it is not plug and play."
"While they do provide API-level access and web hooks, I believe more out-of-the-box integrations with SOAR platforms and SIEM tools would enhance Sublime's value."
 

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."
"I would rate the pricing of Sublime Security as a seven out of ten. It is reasonably well-priced."
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Top Industries

By visitors reading reviews
Construction Company
14%
Comms Service Provider
14%
Financial Services Firm
6%
Pharma/Biotech Company
6%
Outsourcing Company
11%
Computer Software Company
9%
Financial Services Firm
9%
Marketing Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise5
Large Enterprise7
 

Questions from the Community

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What is your experience regarding pricing and costs for Sublime Security?
My experience with pricing, setup cost, and licensing is limited, but I noticed that Sublime Security was slightly more expensive than Avanan or Defender, as Defender comes included with other Micr...
What needs improvement with Sublime Security?
I would say there are very minimal changes needed regarding Sublime Security; for first-time users, it can be difficult knowing how to write the tool. Having some templates available would improve ...
What is your primary use case for Sublime Security?
My main use case for Sublime Security is to test how this product works, so I am using this for that purpose. For a quick specific example of what I tested with Sublime Security, it detects the ema...
 

Also Known As

OPSWAT MetaDefender Email Security, MetaDefender Email Gateway Security, MetaDefender Email Security
No data available
 

Overview

 

Sample Customers

Information Not Available
Snowflake, Spotify, Anduril, Elastic, Compass, Encompass Health, Zscaler, Ovo Energy, Personio, Beneteler 
Find out what your peers are saying about MetaDefender Email Security Solutions vs. Sublime Security and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.