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Mimecast Advanced Email Security 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

Mimecast Advanced Email Sec...
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), Secure Email Gateway (SEG) (3rd)
Sublime Security
Average Rating
9.0
Reviews Sentiment
6.4
Number of Reviews
3
Ranking in other categories
Email Security (18th)
 

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.
Sublime Security, on the other hand, focuses on Email Security, holds 1.4% mindshare, down 1.5% 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 (%)
Sublime Security1.4%
Proofpoint Email Protection6.8%
Microsoft Defender for Office 3656.3%
Other85.5%
Email Security
 

Featured Reviews

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.
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

"My advice to those considering this product would be to go for it."
"The platform's most valuable features are journaling and email archiving, effectively stopping phishing attacks."
"The product's most valuable features are impersonation protection and phishing countermeasures."
"The solution's performance is good."
"The security on offer is very good."
"It does a good job for us, and its admin console is easy to use."
"In terms of technical superiority and the product itself, there are no complaints."
"The initial setup is easy."
"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."
"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

"Its pricing can be improved. It is a bit expensive."
"The product's interface could be improved to be more user-friendly."
"The lock in is very, very tight. It is impossible to move out of Mimecast to a different product, like Proofpoint or 365 ATP, and keep the chain of custody for every email that I've archived."
"The attachment scanning feature doesn't work properly."
"As a user, the user interface of the management console could be upgraded, for example."
"As for areas for improvement within Mimecast Web Security, I believe there is quite a lot that can be improved."
"The installation is not so straightforward."
"They should improve the cookies management feature."
"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."
"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

"I'm always going to say the price needs to be lower, but it's reasonable."
"The product has good pricing in terms of return on investment."
"On a scale of one to ten, where one is cheap, and ten is expensive, I rate the pricing a ten."
"It's an expensive solution."
"For what it is, the product is overpriced."
"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."
"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."
"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
Computer Software Company
12%
Financial Services Firm
8%
Comms Service Provider
6%
Government
6%
Financial Services Firm
10%
Computer Software Company
9%
Outsourcing Company
9%
Marketing Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise11
Large Enterprise13
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise2
Large Enterprise2
 

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...
What is your experience regarding pricing and costs for Sublime Security?
The pricing or setup cost or licensing that they are offering for us is not my scope; it is someone else working with them in terms of pricing. As far as I know, they are not expensive and their pr...
What needs improvement with Sublime Security?
Based on the feedback we receive from our partners and their end-users, there are two main areas for improvement: the learning curve and pricing for smaller organizations. First, while the platform...
What is your primary use case for Sublime Security?
Our main use case is two-fold. Primarily, as a channel partner, our core focus is channel enablement. We actively pitch, demonstrate, and distribute Sublime Security to our partner network, who the...
 

Also Known As

Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Email and Collaboration Threat Protection
No data available
 

Overview

 

Sample Customers

Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Snowflake, Spotify, Anduril, Elastic, Compass, Encompass Health, Zscaler, Ovo Energy, Personio, Beneteler 
Find out what your peers are saying about Proofpoint, Microsoft, Mimecast and others in Secure Email Gateway (SEG). Updated: May 2026.
896,692 professionals have used our research since 2012.