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Cisco Secure Email Threat Defense vs Fortinet FortiMail comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 3, 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

Cisco Secure Email Threat D...
Ranking in Email Security
26th
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
16
Ranking in other categories
No ranking in other categories
Fortinet FortiMail
Ranking in Email Security
6th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
67
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of January 2026, in the Email Security category, the mindshare of Cisco Secure Email Threat Defense is 1.1%, up from 1.0% compared to the previous year. The mindshare of Fortinet FortiMail is 3.5%, down from 5.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Fortinet FortiMail3.5%
Cisco Secure Email Threat Defense1.1%
Other95.4%
Email Security
 

Featured Reviews

reviewer2541525 - PeerSpot reviewer
Principal Cyber Prevent and Defense Engineer at a comms service provider with 1,001-5,000 employees
Clawback feature performs well but analytics and integration capabilities need improvement
The integration capability with other threat intelligence platforms is not optimal, as I have experienced difficulty in sending logs to our SIEM. Cisco Secure Email Threat Defense's flexibility could be enhanced while it mostly integrates with cloud solutions, but not on-premise. The behavioral analysis capability of Cisco Secure Email Threat Defense is not particularly helpful for identifying new, evolving threats within my company, as it keeps flagging legitimate emails as malicious. Regarding room for improvement, the significant number of false positives should be addressed. The solution does not adapt to behavioral analytics and does not make changes when it sees a pattern.
Abhimanyu Das - PeerSpot reviewer
Senior Associate at a tech vendor with 10,001+ employees
Targeted email filtering has reduced spam and phishing and now saves significant investigation time
The best features of Fortinet FortiMail include its techniques and tactics, which are highly effective compared to other solutions such as Microsoft 365. Although Fortinet FortiMail may not be as advanced in some aspects, it is well recognized for its strong performance in handling spam and phishing. It performs thorough mail scanning and also offers a sandboxing feature that enhances protection. Fortinet FortiMail has had a positive impact on my organization by significantly reducing unwanted email activities such as spam and phishing. It provides accurate detection and generates results that often exceed what can be achieved through manual analysis. Since deploying Fortinet FortiMail, I have observed a reduction in investigation time by at least 20 to 30 percent.

Quotes from Members

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

Pros

"On ease of use, it rates very high. It's something that I was able to get into without really looking at any documentation. I wanted to see what it felt like before I started looking at any documentation on how to use it, and it was very easy to use. It works very smoothly. The user experience is very intuitive. They did an amazing job on that."
"The ability to see east-west traffic is its most valuable feature. Traditionally, email defense focuses on north-south, inbound-outbound, egress-ingress traffic. With Cisco Secure Email Cloud Mailbox, it's able to quickly identify, track, tag, and categorize emails that are internal. That can typically give us visibility into if there's an internal compromised account (for example). Someone can then use that internal compromised account to email additional accounts with either malicious software or links, but internal within that Office tenant. Effectively, that email message never leaves the tenant. Any of the mail gateways really do not have any method or way of seeing this traffic since it's not leaving the environment."
"Cisco Secure Email Threat Defense's best features include user management of graymail, enhancing security awareness by allowing users to manage cold calls, sales-based items, and ensuring email compliance."
"The features and functionalities are much better than Microsoft's in-built Defender plan."
"Cisco has a threat mechanism called cloud-based Talos, where all the threats are inbuilt."
"I highly recommend it as one of the best choices."
"The solution is stable."
"Secure Email Threat Defense's scalability is good."
"Technical support is great. They're available 24/7 and their response time is typically within the hour."
"For me, Fortinet FortiMail is the best solution I have ever tried."
"The deployment is simple and once up and running it is easy to manage."
"Its threat detection capabilities have been beneficial."
"Fortinet FortiMail has a lot of valuable features. It works great. It also has an antivirus feature. Support for Fortinet FortiMail was also great when my team wanted to block some geographic IPs, but couldn't figure out how to do it. The support team provided clear communication on how to resolve that issue. Another valuable feature of Fortinet FortiMail is SPAM filtering which tells you how many spammy emails you've received. Based on my current use cases, I'm happy with Fortinet FortiMail."
"Clean user interface and good sandbox."
"Troubleshooting is very simple because you can see where the email was not delivered and why it would be considered as spam."
"The anti-spam functionality is good and works well."
 

Cons

"The solution is a bit expensive."
"The pricing could always be better."
"The physical appliance has been discontinued, although the platform still exists."
"The product's complexity at times results in redundant rule sets that are difficult to untangle, highlighting the need for streamlined management systems and a more user-centric approach to system configuration."
"This solution could be improved by integration with Sandbox."
"The behavioral analysis capability of Cisco Secure Email Threat Defense is not particularly helpful for identifying new, evolving threats within my company, as it keeps flagging legitimate emails as malicious."
"The search area has room for improvement. When you go to the next page, it remains at the bottom of the current page that you're on. Also, under the reports section, it allows you to see any "convictions," but if you want to search for those convictions you have to remember when they all came in and go back and edit the search accordingly. You cannot click on the list of convictions to actually see if you had a spike at a certain time."
"The tool gives false positives and it needs to be more accurate. I would like to see AI as a new feature."
"Fortinet FortiMail's technical support team has shortcomings and needs improvement."
"The solution's pricing is flexible and can be adjusted for African utility companies. Microsoft often offers special pricing formulas for African governments and organizations and it is similar to Fortinet FortiMail. In my country, government institutions receive discounted pricing from Fortinet FortiMail."
"The Ui isn't that intuitive."
"It would be nice if we could manage the solution from the cloud so I could handle things off-site if necessary."
"Fortinet FortiMail can be improved in terms of its dashboard, which is small and not visually appealing, making deeper investigations difficult."
"I think the security of the product could improve."
"Header inspection and containerization, like on-prem premises sandboxing, need enhancement."
"There are features that other solutions have that this one is lacking, such as reporting options. I hope in future releases they advance their features list."
 

Pricing and Cost Advice

"It is expensive compared to other vendors."
"The feedback from vendors and customer is that it is expensive."
"Cisco Secure Email Cloud Mailbox does not have any competition with Sophos, Trend Micro, or other vendors of the world. However, there is a pricing premium for the solution. One has to look at it from that angle that while they are buying Cisco, there will be a premium, and Cisco justifies that premium value. That's why they're charging a high price."
"The solution’s pricing is manageable."
"Fortinet FortiMail is a little bit expensive."
"Price-wise, the solution is not far from Microsoft ATP. So, it is affordable."
"FortiMail is not cheap."
"It is reasonable."
"There is either an annual or six-month charge to use this solution. Fortinet FortiMail is cheaper than Proofpoint or Cisco Security, or other email security appliances."
"In the future I would like it if there's a possibility to lower the price of the bandwidth and UTM. It is quite expensive."
"Compared to its competitors, Fortinet's products are available at a higher price range."
"9,000 Euro per annum for Fortinet Mail and sandbox."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Manufacturing Company
8%
Marketing Services Firm
8%
Healthcare Company
7%
Computer Software Company
13%
Financial Services Firm
9%
Manufacturing Company
7%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise6
Large Enterprise7
By reviewers
Company SizeCount
Small Business32
Midsize Enterprise22
Large Enterprise15
 

Questions from the Community

What is your experience regarding pricing and costs for Secure Email Threat Defense?
Comparatively with other products, the pricing of Cisco Secure Email Threat Defense is normal. As a technical guide, I am not very aware of the pricing details.
What needs improvement with Secure Email Threat Defense?
We have deployed Cisco Secure Email Threat Defense in two customer environments. It is still in development as a new product. Some customer requirements, such as sending logs to a Syslog server, ar...
What is your primary use case for Secure Email Threat Defense?
We are working with Cloud Mail Gateway and on-premise mail gateways. We have worked with Cisco Secure Email Threat Defense.
What needs improvement with Fortinet FortiMail?
In my opinion, points for improvement for Fortinet FortiMail include sometimes the speed and fine-tuning the false positive problems, especially with the signed PDF attachments and the whitelist an...
 

Also Known As

Cisco Secure Email Cloud Mailbox, Cisco CMD, Cisco Cloud Mailbox Defense
FortiMail
 

Overview

 

Sample Customers

Luiss University, Lone Star College, T-Systems, Magyar Telekom
Magromer Cueros y Pieles S.A.
Find out what your peers are saying about Cisco Secure Email Threat Defense vs. Fortinet FortiMail and other solutions. Updated: December 2025.
879,899 professionals have used our research since 2012.