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Mimecast Email Security vs Trellix Collaboration Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 5, 2024

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 Security
Ranking in Secure Email Gateway (SEG)
4th
Average Rating
8.0
Reviews Sentiment
6.2
Number of Reviews
31
Ranking in other categories
Office 365 Protection (3rd)
Trellix Collaboration Security
Ranking in Secure Email Gateway (SEG)
9th
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
15
Ranking in other categories
Email Security (18th), Instant Communications Security and Compliance (7th)
 

Mindshare comparison

As of July 2025, in the Secure Email Gateway (SEG) category, the mindshare of Mimecast Email Security is 11.9%, down from 15.8% compared to the previous year. The mindshare of Trellix Collaboration Security is 2.4%, up from 2.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG)
 

Featured Reviews

ShaheenKapery - PeerSpot reviewer
Provides valuable security features and has a straightforward setup process
The initial setup process is straightforward and takes a weekend at most. A .com domain can take up to forty-eight hours, while a local domain takes about four to eight hours because it has to propagate through the international DNS records. It is a cloud-only solution. If you're managing email security on-premises, you use your bandwidth to download emails, including spam, and then use your servers to clean it up. For example, say a third of your email is spam; this consumes significant bandwidth and resources. However, if you use Mimecast, they filter the emails on their servers before delivering them to you. It can be a major selling point in regions with expensive bandwidth, such as Africa. You can save bandwidth and improve overall efficiency by offloading the spam filtering to Mimecast.
BernardLugalia - PeerSpot reviewer
Provides strong data protection with virtual patching and vulnerability assessments
I primarily use it to monitor database access, particularly in banking and similar environments. It ensures that IT personnel and others do not create unauthorized accounts or users. Collaboration security assists in tracking database access and alerts in case of suspicious activity One of the…

Quotes from Members

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

Pros

"In the current environment that the world is in, everyone is trying to hack everyone else, so Project+ definitely helps a lot there."
"The solution is pretty straightforward to use and easy to set up."
"I recommend Mimecast based on customer requirements and budget."
"The platform's most valuable features are journaling and email archiving, effectively stopping phishing attacks."
"Due to our specialized use case, that HIPAA dictionary really comes in handy."
"It's really quite user-friendly. In terms of technical superiority and the product itself, there are no complaints. It is really cutting edge."
"The initial setup is easy."
"We like the content filtering and secure messaging features."
"We can control this solution from the cloud and are able to access it from wherever we are."
"One of the valuable features of the product stems from the fact that it is easy to implement the tool in our environment."
"FireEye is good for malware depicting and security."
"The product helps reduce the number of malicious emails reaching the user's inbox."
"FireEye Email Security helps us prevent spam and phishing emails and all other business-compromised email attacks."
"One of the most valuable features is the protection against vulnerabilities, particularly through virtual patching."
"What I find most valuable with the solution is that it can integrate with cloud solutions, such as Google and Microsoft. Additionally, the solution is easy to use."
"Before installing, consider potential challenges with system performance, especially when integrating multiple tools, which could slow down performance."
 

Cons

"The price could be better, it should be reduced."
"The installation is not so straightforward."
"Mimecast needs to reduce the number of false positive emails; a big pain point for us."
"As a user, the user interface of the management console could be upgraded, for example."
"We discussed the phishing aspect, the DNS system, and the key rotation."
"We have subscribed to an archival service, and yet, when we have to get our data out, we have to pay a fee to get our own data. They charge an extraction fee."
"The reaction time between a new threat being identified and Mimecast picking it up needs to be narrowed a bit."
"The attachment scanning feature doesn't work properly."
"Sometimes, integration can be challenging, impacting its stability, which is why I rate it a five out of ten."
"I would rate them as a 1.5. The new hub created in India is not good."
"FireEye needs single sign-on. They say it's on their roadmap. They should also implement support for Microsoft Authenticator app for 2FA."
"The solution needs better support."
"There is a need for improved integration with totally different products, such as a rapid server."
"The spam detection feature could be better."
"Sometimes especially zero-day spam emails can be passed to the user's inbox."
"The solution must provide features to scan QR codes for threats."
 

Pricing and Cost Advice

"It's an expensive solution."
"The licensing costs are per-user for the product that you get with them."
"The product has good pricing in terms of return on investment."
"The customers can select the license packages as per their requirements."
"The product price is moderate. I rate the pricing a five out of ten."
"For what it is, the product is overpriced."
"On a scale of one to ten, where one is cheap, and ten is expensive, I rate the pricing a ten."
"We pay monthly fees to our provider."
"The solution requires a license to be purchased for every user."
"The cost is very high."
"I rate the product price as nine out of ten, where ten is the most expensive, and one is the cheapest. There is no need to pay any extra charges apart from the licensing costs."
"The licensing is on a yearly basis."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
8%
Manufacturing Company
7%
Comms Service Provider
5%
Manufacturing Company
15%
Computer Software Company
14%
Comms Service Provider
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Mimecast Email Security with Targeted Threat Protection?
The interface of this solution is very easy to navigate and user-friendly. There is no delivery in email and other communications, making it reliable. The configuration is relatively easy.
What needs improvement with Mimecast Email Security with Targeted Threat Protection?
If I ask you about the room for improvement, we discussed the phishing aspect, the DNS system, and the key rotation. Apart from that, are there any other areas that you would like to see improved o...
What do you like most about FireEye Email Security?
One of the valuable features of the product stems from the fact that it is easy to implement the tool in our environment.
What needs improvement with FireEye Email Security?
I would like to see the addition of email digital protection features, such as anti-spam and antivirus, not just sandboxing, in the on-premises solution.
What is your primary use case for FireEye Email Security?
I have worked on Email Security ( /categories/email-security ) both on-premises and in the cloud, Web Security, and also on MDR, which is called HX endpoint security for Trellix Collaboration Secur...
 

Also Known As

Mimecast Email Security with Targeted Threat Protection
FireEye Email Security
 

Overview

 

Sample Customers

Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Northshore Utility District, Luz Technologies, Air Academy Federal Credit Union, Bank Gutmann, Bank of Thailand, Penn State Health Milton S. Hershey Medical Center, State of Missouri, City and County of San Francisco, Denver Public Schools, Vodafone, Go Auto, Stater Bros. Market
Find out what your peers are saying about Mimecast Email Security vs. Trellix Collaboration Security and other solutions. Updated: June 2025.
861,524 professionals have used our research since 2012.