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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

"What I like about the integration is that it is directly into Microsoft 365, users can use their Microsoft 365 credentials to log into the portal and access their mail."
"Mimecast certainly helped my customers reduce phishing emails."
"Its administration console is very easy to use. The administration console is absolutely important because you interact with the platform through it."
"The solution offers good technical support."
"I recommend Mimecast based on customer requirements and budget."
"It offers an easy initial setup."
"URL inspection works pretty well."
"The solution's performance is good."
"FireEye Email Security helps us prevent spam and phishing emails and all other business-compromised email attacks."
"We can control this solution from the cloud and are able to access it from wherever we are."
"Before installing, consider potential challenges with system performance, especially when integrating multiple tools, which could slow down performance."
"The auto-remediation feature is valuable."
"One of the valuable features of the product stems from the fact that it is easy to implement the tool in our environment."
"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."
"The initial setup is simple."
"The product helps reduce the number of malicious emails reaching the user's inbox."
 

Cons

"The solution should include more AI features instead of Mimecast's more general static configuration tooling."
"External security features need improvement."
"The installation is not so straightforward."
"The solution is complex and not easy to use."
"Their support should be improved. They are notorious for sending you to knowledge-based articles rather than actually talking to you, but that is, unfortunately, kind of becoming a trend with everything. In terms of features, I haven't had any complaints. However, I don't like the fact they moved to a paid training subscription model. They used to have a lot of free webinars for training, but they have started to charge for them in the past year."
"The solution's console interface was recently changed for the admins, but the previous one was much better because we could open tabs on it."
"The filtering needs more flexibility."
"The price could be better, it should be reduced."
"I would rate them as a 1.5. The new hub created in India is not good."
"The solution is not easy to set up. However, we have employees that have the knowledge that can do the difficult implementation. It would be better if the process was easier."
"If they want to be the primary or best solution, they need to have better email management features."
"The spam detection feature could be better."
"The custom tailoring is limited."
"I would like the solution to be able to automatically quarantine the malicious emails before getting to the user's mailbox and continue with regular email operations. This could result in the user clicking the email before the purge operation is completed."
"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."
 

Pricing and Cost Advice

"For what it is, the product is overpriced."
"The customers can select the license packages as per their requirements."
"On a scale of one to ten, where one is cheap, and ten is expensive, I rate the pricing a ten."
"The licensing costs are per-user for the product that you get with them."
"I'm always going to say the price needs to be lower, but it's reasonable."
"Compared to the other solutions in the market, Mimecast Email Security with Targeted Threat Protection's pricing is fine."
"There are additional costs beyond the standard licensing fee."
"We pay monthly fees to our provider."
"The licensing is on a yearly basis."
"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 solution requires a license to be purchased for every user."
"The cost is very high."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
8%
Manufacturing Company
7%
Comms Service Provider
5%
Manufacturing Company
16%
Computer Software Company
14%
Government
9%
Comms Service Provider
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 is your experience regarding pricing and costs for Mimecast Email Security with Targeted Threat Protection?
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
What needs improvement with Mimecast Email Security with Targeted Threat Protection?
There is nothing that notably stands out in need of improvement at present.
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.
860,592 professionals have used our research since 2012.