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Cisco Secure Email vs Fortra's Clearswift Secure Email Gateway comparison

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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

Cloudflare One
Sponsored
Ranking in Email Security
20th
Average Rating
8.8
Reviews Sentiment
6.7
Number of Reviews
22
Ranking in other categories
Secure Web Gateways (SWG) (16th), Data Loss Prevention (DLP) (21st), Cloud Access Security Brokers (CASB) (11th), Distributed Denial-of-Service (DDoS) Protection (7th), Software Defined WAN (SD-WAN) Solutions (13th), Access Management (11th), Bot Management (3rd), ZTNA as a Service (8th), ZTNA (2nd), Secure Access Service Edge (SASE) (10th), Remote Browser Isolation (RBI) (3rd)
Cisco Secure Email
Ranking in Email Security
6th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
63
Ranking in other categories
Cisco Security Portfolio (7th)
Fortra's Clearswift Secure ...
Ranking in Email Security
36th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
0
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2026, in the Email Security category, the mindshare of Cloudflare One is 1.5%, down from 1.8% compared to the previous year. The mindshare of Cisco Secure Email is 5.2%, down from 6.9% compared to the previous year. The mindshare of Fortra's Clearswift Secure Email Gateway is 1.0%, up from 0.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Market Share Distribution
ProductMarket Share (%)
Cisco Secure Email5.2%
Cloudflare One1.5%
Fortra's Clearswift Secure Email Gateway1.0%
Other92.3%
Email Security
 

Featured Reviews

CV
Network Architect at IP Dimension
Cloud security has improved remote access and has reduced costs for smaller client sites
I have used Cloudflare One's Identity-Aware Proxy, and it is quite straightforward from what I have seen so far. The app registration on the Azure side integrates fully into Cloudflare, and I am very satisfied with that part because it is easy to set up. The integration of Cloudflare One's Secure Web Gateway and Zero Trust Network Access works without any issues. That part is pretty automatic, and if you complete the rest of the setup, it comes together by itself with no issues from my side. What makes it nice is that we can actually start replacing on-site firewalls at this stage for the smaller clients because it does not matter if they go to a coffee shop or work from home; they are still secured by the same connection. The hops get shorter and you get better latency. We have done testing to see if it is better. One thing that we did notice with our proof of concept with our current client is that they have people connecting from the UK. When they used their previous VPN solution, uploading CAD drawings and other files to the server took a long time. They mentioned that it is much quicker on Cloudflare One's solution. I definitely believe that is part of the improved performance, and I am satisfied with that as well. What is nice about Cloudflare One is that it makes the setup easier and also easier to train technicians to maintain it. Compared to legacy systems, we do not need to get fancy firewalls in place that are costly. That is definitely also a cost-saver with Cloudflare One.
KS
Technical Associate Network Security at Valuepoint Systems
Email security has protected financial data and provides clear tracking for every branch message
The areas of Cisco Secure Email that could be improved or enhanced are the slowness in the console. I don't think it was a database error or something, but we feel some slowness in configuring DLP and other content filters compared to other consoles. It may have been due to on-premises, but it was much noisy at some times while configuring DLP. When we tried to configure a DLP policy, the console became much slower. In that case, we cannot see what had happened in the mail which was blocked at that time. It may take nearly an hour to get back to normal while configuring policies. That is the major issue in the product.
PC
Systems Administrator at a financial services firm with 1,001-5,000 employees
Stable, but malware needs improvement and customer support is poor
They need to improve the malware in the product. I am not satisfied with Clearswift because of the lack of customer support. The support is poor, the supplier takes a lot of time and it's expensive. We have some issues here when I contact the supplier, it takes a lot of time for them to get back to us but there's no solution. I am now looking at Symantec as a possible alternative.

Quotes from Members

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

Pros

"It is a stable solution."
"Cloudflare is simple to use."
"This solution is easy to understand and easy to configure."
"For Cloudflare Access, I am using the free plan...The most valuable feature is their protection."
"The solution has different options that can be used to differentiate DDoS attacks."
"Cloudflare is by far the most effective solution that I have come across."
"The blocking feature is very good."
"Using Cloudflare One makes my work quite easy because for DDoS protection, all I need to do is understand the OSI model and click; it makes it easier than trying to write a command line or use a Linux command."
"It provides good IT assistance."
"It sends us reports, where we can see if there have been attacks, e.g. DDoS. If so, we can switch to a clean IP."
"It does a great job of preventing spam, malware, and ransomware. I can only go by what people have told me and what I've seen, but I have not seen spam in a year and a half to two years in my own company mailbox. And there are not a lot of catches where it's catching something that should have gotten through, either."
"It has the ability to tell us, after an email has been delivered, where else it went, once it got inside. Maybe it's something we wanted it to stop and it didn't stop it, but it notified us later that it was something that it should have stopped. It can give us a trajectory of all the other places that it went internally and it can tell us what files were transferred as well."
"Cisco Secure Email is part of Cisco's extensive efforts and investments in technology, especially in the realm of cyber security. The product is one among many security solutions offered by Cisco."
"We like the in-built features, like the email filtering based on the IP and domain. Cisco has its own blacklisted domains and IPs, which is very good. This filters around 70 percent of emails from spam, and we are seeing fewer false positives with this."
"The most valuable feature is the different content filters we are using, such as DKIM."
"The most valuable features are Advanced Malware Protection, URL filtering, and of course Reputation Filtering."
"A stable solution."
"Ability to create your own content-filtering policies with relative ease."
 

Cons

"They don't have a person to provide support for customers using the solution under their free plan."
"Operating and tuning the product is difficult."
"Our customers no longer use Cloudflare because its service is subpar."
"When there are any dynamic changes in complex applications, the tool takes a lot of time, making its analytics-related area a major matter of concern where improvements are needed."
"The tool should provide on-premise versions. Currently, all versions are cloud-based."
"The onboarding process can be improved a little bit."
"The response time for support must be reduced."
"Cloudflare Zero Trust Platform needs to improve its documentation. It took time to do the implementation."
"The solution needs to improve its advanced phishing filters. It is very good at filtering things which have bad reputations. However, when phishing or malicious emails are new or coming from a legitimate source, we don't feel that the solution is working."
"The user interface could be updated."
"I would like them to add some clustering or high availability features."
"There are some concerns in the way the architecture is set up, making it an area where improvements are required."
"The reporting functionality needs to be improved."
"The user interface needs some improvement to become more user-friendly. The graphics could be better. It's designed more for a technical user rather than a business user."
"We have been struggling in the last month with Cisco encryption and with the S/MIME encryption. I don't know if it is an issue on our side or if these features of the solution are not working very well."
"The product's GUI for the dashboard needs improvement."
"FTP server and TRUST Manager functionality."
"Malware needs improvement."
 

Pricing and Cost Advice

"The price tag is no longer $200,000, but rather $300,000 to $400,000. It's twice."
"My company has to make yearly payments towards the licensing costs attached to the solution. There are no hidden charges apart from the licensing costs of the solution."
"The pricing is somewhere in the middle. I would rate the pricing a seven out of ten."
"The solution's pricing lacks transparency."
"The solution is not that expensive."
"The pricing of the solution is cheap. The licensing cost is also very low. I rate the cost and pricing a three out of ten."
"Cloudflare Zero Trust Platform's pricing is good."
"The prices are slightly expensive."
"I would rate the pricing a ten out of ten, where one is cheap, and ten is expensive."
"There are additional fees for adding features."
"We do annual licensing for Cisco Secure Email Gatewayand SMA together, and possibly SmartNet support. Packaged together, the cost is just under $38,000."
"I rate the pricing a ten out of ten on a scale where one means it is less cost-effective, and ten means it is the most cost-effective solution."
"The pricing for the Cisco Email Security Appliance involves recurring costs for licenses based on the contracted time frame, such as one year, three years, or five years. Renewals are required after the license expires."
"I don't have the insights into it, but compared to different products, it seems to have a medium level of pricing."
"The license was not per user, the license model was per feature. You could choose anti-virus, anti-spam, etc. It was feature-based and charged yearly."
"The licensing was all transferred."
Information not available
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Comms Service Provider
11%
Financial Services Firm
9%
Manufacturing Company
7%
Computer Software Company
12%
Manufacturing Company
10%
Financial Services Firm
8%
Comms Service Provider
6%
Computer Software Company
11%
Government
9%
Educational Organization
9%
Comms Service Provider
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise2
Large Enterprise10
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise18
Large Enterprise26
No data available
 

Questions from the Community

What needs improvement with Cloudflare Access?
Cloudflare Access has strong integration with Microsoft, among other platforms. However, when it comes to Kaspersky, ...
What is your primary use case for Cloudflare Access?
Cloudflare Access provides secure access to internal applications for employees, external members of the organization...
What advice do you have for others considering Cloudflare Access?
Cloudflare Access is one of the best integrations available. While about two hundred vendors offer similar services, ...
What do you like most about Cisco Secure Email?
Cisco Secure Email is a budget-friendly solution.
What is your experience regarding pricing and costs for Cisco Secure Email?
The pricing structure is good as it is user-based or email client-based, which is positive for clients.
What needs improvement with Cisco Secure Email?
The user interface of the Email Security Gateway ( /products/security-gateway-reviews ) should be improved. It would ...
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Also Known As

Cloudflare Area 1 Email Security, Cloudflare Bot Management, Cloudflare Gateway, Cloudflare Zero Trust Platform, Cloudflare DDoS, Cloudflare SASE & SSE Platform
Cisco Email Security, IronPort, Cisco Email Security, ESA, Email Security Appliances
No data available
 

Overview

 

Sample Customers

23andMe
SUNY Old Westbury, CoxHealth, City of Fullerton, Indra
Information Not Available
Find out what your peers are saying about Cisco Secure Email vs. Fortra's Clearswift Secure Email Gateway and other solutions. Updated: February 2026.
883,011 professionals have used our research since 2012.