Trellix Email Security

Trellix Email Security
Formerly FireEye Email Security

About TrustRadius Scoring
Score 9.4 out of 100
Trellix Email Security


What is Trellix Email Security?

Trellix Email Security (formerly FireEye Email Security) protects against advanced email attacks that bypass the initial gateway.
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Recent Reviews

Fire Eye Email Security

9 out of 10
August 07, 2022
It's one of the best tools in email security, very easy to deploy, maintain, and manage. It is very effective in detecting malicious …
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Popular Features

View all 5 features
  • Anti-malware (6)
  • Threat Detection (6)
  • Cusomizability (6)
  • Sandboxing (6)

Reviewer Pros & Cons

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Video Reviews

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View all pricing

Server Edition


On Premise
per mailbox



per mailbox

Cloud Edition


per mailbox

Entry-level set up fee?

  • Setup fee optional


  • Free Trial
  • Free/Freemium Version
  • Premium Consulting / Integration Services
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Features Scorecard

Secure Email Gateway

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Product Details

What is Trellix Email Security?

Trellix Email Security (formerly FireEye Email Security) protects against advanced email attacks that bypass the initial gateway.

Trellix Email Security Features

Secure Email Gateway Features

  • Supported: Anti-malware
  • Supported: Cusomizability
  • Supported: Threat Detection
  • Supported: Sandboxing
  • Supported: Management Tools

Trellix Email Security Video

Trellix Email Security Integrations

Trellix Email Security Competitors

Trellix Email Security Customer Size Distribution

Small Businesses (1-50 employees)0%
Mid-Size Companies (51-500 employees)25%
Enterprises (more than 500 employees)75%

Trellix Email Security Technical Details

Deployment TypesOn-premise, Software as a Service (SaaS), Cloud, or Web-Based
Operating SystemsWindows, Linux, Mac
Mobile ApplicationNo
Supported CountriesWorldwide
Supported LanguagesEnglish, Japanese

Frequently Asked Questions

Trellix Email Security (formerly FireEye Email Security) protects against advanced email attacks that bypass the initial gateway.

Reviewers rate Anti-malware and Threat Detection highest, with a score of 8.9.

The most common users of Trellix Email Security are from Mid-sized Companies (51-1,000 employees) and the Information Technology & Services industry.
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Reviews and Ratings




(1-6 of 6)
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Score 9 out of 10
Vetted Review
Verified User
It's one of the best tools in email security, very easy to deploy, maintain, and manage. It is very effective in detecting malicious attachments, and spam mails. It can be deployed in large networks to scan spam mails and it has granular control such as we can block specific emails from outside of the network as well. It has the feature to control unwanted emails.
  • It is a solution that is very effective to protect against malware/phishing mails with accuracy and ease of use.
  • It has very good reporting features which helps in getting more customized report.
  • Extra ordinary email trace feature which gives end to end flow.
  • Good in blocking advanced threats.
  • It has a great response while blocking malicious/spam mails, but there have been some false positives too.
  • Whitelisting could be improved.
  • Costing could be improved.
It has a very good feature of URL replace, it helps us to block or prevent spam, phishing, or malicious emails. It has some limitations like if some large or lengthy emails come it takes more time to scan and to avoid delay it forwards the mail to the recipient with a warning note on it.
August 06, 2022

FireEye Email Security

Score 9 out of 10
Vetted Review
Verified User
A great solution to protect against malicious/phishing coming from email with accuracy and ease of use. Advance attack and email trace feature, give end-to-end email flow information. Easy dashboard to use, simple yet effective. FireEye threat intelligence services are integrated with EX. Work well with O365 Email ATP, both do retrospective alerts.
  • Work great for a 2Lod for phishing and malware.
  • Complete email security prevention is available on the cloud model.
  • We get more control over email which to our network and we can stop what comes in the email from outside.
  • Sometimes feels that console running slow.
  • Riskware detection has a lot of false positive.
  • The user interface is not very intuitive.
Complete email security protection against all email users. it also works well with O365 email ATP as well. Both do retrospective alerts. It's like watching a dance between 2 products. They typically don't retro the same email. They fingerprint emails for future blocking. Provides a higher level of security for emails and ease in identifying abnormalities.
Score 10 out of 10
Vetted Review
Verified User
FireEye Email Security is the primary email gateway for the company. It is used for malware analysis as well as the enterprise-wide email quarantine system.
  • Very user-friendly and simple interface.
  • Policy rules are easy to create and they work.
  • Very little downtime or operational impact.
  • Email delivery issues are easy to investigate and troubleshoot.
  • Reporting
I would highly recommend FireEye Email Security to a colleague. The platform is good at eliminating malicious emails prior to delivery to the end-user. Detections exist across the URL, attachment, and embedded HTML levels. It is a strong platform.
Score 8 out of 10
Vetted Review
FireEye Email Security—Server Edition is being used across the whole organization. We managed our email via Office 365. It supports email security features besides email service. However, it was difficult to block URL-based threats and the security settings were complex, making it difficult for us to use other than basic security features. So, we introduced FireEye Email Security to address this problem. Since then, we have been freed from phishing threats. In particular, FAUDE (FireEye Advanced URL Detection Engine) has been of great help in blocking threats.
  • Blocking URL-based threats using FAUDE features.
  • Post threat detection via the Retroactive feature.
  • Excellent sandboxing analysis performance and detailed dynamic analysis reports.
  • User notification is too old (text format only supported, html format not supported).
  • Too few and simple allowed list conditions (No email header condition and no multiple conditions).
Even if you are using email security features via enterprise mail, it is the best option for securing enterprise mail. In particular, FAUDE (FireEye Advanced URL Detection Engine) has been of great help in blocking URL-based threats. If you use O365, MS365, and Gmail, you can respond to the post email delivery weaponized URL threat through the Remediation feature.
Excellent detection and response capabilities. Regularly and actively updates for FEOS, guest-Images, and security content. Continuous new feature updates. Real-time support via live chat and active community (Knowledge Base, Ideas Program, Market, Pro Series, etc.) But, Absurd false positives sometimes occur and the response is too slow. I think the fast track is required for this.
Score 5 out of 10
Vetted Review
Verified User
We use it as an email gateway for the company. All email addressed to our employee's email addresses are routed through the appliance. It attempts to filter out some malicious emails based on the links and attachments that are found. It is not our only email defense that we have in our stack.
  • It does a decent job of detecting malicious attachments in emails.
  • It is easy to release emails that are incorrectly quarantined.
  • The interface is not exactly intuitive.
  • There are a high number of false positives.
  • To my knowledge, there is not a way to whitelist links or attachments.
It works well as one component of an email security stack, as long as you do not mind dealing with false positives. It would not be suitable as the only component in an email security system. When upstream components of our stack have gone down, a high number of malicious mail got through our FireEye appliance.
The reason that I gave the support a 5 is that I have had both positive and negative experiences. One of the positive experiences was when a senior support engineer spend quite a few hours with me solving an issue that we were having. One of the negative ones was when we were experiencing an issue and one person from support gave one solution, and when the issue reoccurred we were told by another person that what was recommended to us the first time was incorrect. The issue was never fully solved.
Score 10 out of 10
Vetted Review
Verified User
FireEye Email Security is used by the two organizations we manage as an email security and spam filter. We have an Exchange on-premise server for each organization. FireEye ES is set as the MX record to the front for each of these servers. The mail is scanned, filtered and then released through to Exchange for delivery. ES was purchased to replace our Barracuda Spam filter. We liked the way the Barracuda filtered spam but wanted to up our security game. We reviewed ES, liked what we heard and saw and made the switch. We have been very happy with the security aspect of ES as it seems to aggressively defend against email attacks.
  • Ease of implementation was a key factor in our decision making for an email security/spam product. FireEye ES was very easy to implement as well as to maintain.
  • Blocking effectiveness in an email security/spam product has to be the most important factor. FireEye ES does a very good job of completely blocking the vast majority of risky emails. With its sand-boxing features, it does a good job of evaluating threats. The spam blocking is effective without being overly so.
  • Being a cloud product makes ease of management a great feature. The console is easy to get to, use and understand. Whitelisting, finding emails that are impacted, and other common email flow questions are easily achieved.
  • The console is very easy to use for the most part, but some parts of it switch to other servers and it can seem a little disconnected. I would like to see this integration improved.
  • Otherwise, FireEye ES is one product I don't have hardly any complaints about. Support is great, the cost is good, usefulness/effectiveness is excellent.
FireEye as a company seems very good overall. We are evaluating other security products from them as I write this and I have to say when it comes to security itself and customer support they appear to be very good. We had another spam filtering product that seemed to work well, but a few years back when security content became a bigger issue than spam content we decided to evaluate new products and chose ES. The product seems to work very well at blocking the bad stuff and allowing good stuff and is easy to monitor and manage. The company is very responsive and helpful. The ES cloud application itself is consistently upgraded and improved. The way you implement the product is very easy. We have begun testing the O365 hybrid scenario and ES works very well in this scenario.
In the years we have had this service, we haven't needed much help (which is a testament to the ease of use/reliability of the product) but when we have they have been probably the best vendor I've ever dealt with when it comes to quickly addressing support call issues. We also have a very readily available engineer that has been quick to help with more complex requests.
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