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Mimecast Email and Collaboration Threat Protection 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 Email and Collabor...
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
39
Ranking in other categories
Email Archiving (2nd), Secure Web Gateways (SWG) (19th), Office 365 Protection (2nd), Secure Email Gateway (SEG) (3rd)
Sublime Security
Average Rating
9.0
Reviews Sentiment
6.3
Number of Reviews
3
Ranking in other categories
Email Security (21st)
 

Mindshare comparison

While both are Messaging and Collaboration solutions, they serve different purposes. Mimecast Email and Collaboration Threat Protection is designed for Secure Email Gateway (SEG) and holds a mindshare of 17.1%, up 11.1% compared to last year.
Sublime Security, on the other hand, focuses on Email Security, holds 1.6% mindshare, up 1.2% since last year.
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Mimecast Email and Collaboration Threat Protection17.1%
Proofpoint Email Protection21.1%
Microsoft Defender for Office 36519.9%
Other41.9%
Secure Email Gateway (SEG)
Email Security Mindshare Distribution
ProductMindshare (%)
Sublime Security1.6%
Microsoft Defender for Office 3658.8%
Proofpoint Email Protection8.1%
Other81.5%
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

"In terms of technical superiority and the product itself, there are no complaints."
"My advice to those considering this product would be to go for it."
"The product's most valuable features are impersonation protection and phishing countermeasures."
"In terms of efficacy, Proofpoint is better than Mimecast, though it's a little difficult to manage."
"Mimecast is a brilliant product; it works very well, I have very seldomly, if ever, had any problems with it, and it does exactly what it promises to do."
"The Large File Send feature comes in handy when you have to send fairly large attachments."
"If you want the ease of use, then Mimecast, or at least a cloud solution, is the way to go."
"We like the content filtering and secure messaging features."
"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."
"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."
"I like its ability to detect and block."
 

Cons

"I'd like to have better support from the product in the future."
"As for areas for improvement within Mimecast Web Security, I believe there is quite a lot that can be improved."
"Mimecast Email Security is somewhat expensive compared to the competition in the Indian market, and the local presence is lacking as they do not have a local representative currently."
"The solution should include more AI features instead of Mimecast's more general static configuration tooling."
"The price of the solution is expensive. It can improve by reducing the price."
"Mimecast needs to reduce the number of false positive emails; a big pain point for us."
"The feature that should be included is to remove the block on the encrypted files."
"The filtering needs more flexibility."
"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."
"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."
 

Pricing and Cost Advice

"For what it is, the product is overpriced."
"The product price is moderate. I rate the pricing a five out of ten."
"The customers can select the license packages as per their requirements."
"Two subscription options are currently offered: monthly and yearly. My suggestion is to opt for the yearly subscription as it can give some discount. The pricing isn't high as other cloud solutions are pricier than Microsoft's offerings."
"The licensing costs are per-user for the product that you get with them."
"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."
"On a scale of one to ten, where one is cheap, and ten is expensive, I rate the pricing a ten."
"The solution is expensive."
"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%
Manufacturing Company
6%
Computer Software Company
10%
Financial Services Firm
9%
Marketing Services Firm
7%
Healthcare Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise11
Large Enterprise13
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...
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?
We are using a traditional security gateway and we have a lot of challenges with that, which is why we are trying to get something based on ML and AI, something that can address our current challen...
What is your primary use case for Sublime Security?
The intended use case for this product is for a production environment, and we are a mid-sized company.
 

Also Known As

Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Mimecast Advanced Email Security
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 Microsoft, Proofpoint, Mimecast and others in Secure Email Gateway (SEG). Updated: February 2026.
885,789 professionals have used our research since 2012.