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Cisco Secure Email Threat Defense vs Fortra's Agari comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

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
8.6
Reviews Sentiment
6.5
Number of Reviews
23
Ranking in other categories
Secure Web Gateways (SWG) (12th), Data Loss Prevention (DLP) (22nd), Cloud Access Security Brokers (CASB) (12th), Distributed Denial-of-Service (DDoS) Protection (8th), Software Defined WAN (SD-WAN) Solutions (13th), Access Management (12th), Bot Management (3rd), ZTNA as a Service (8th), ZTNA (4th), Secure Access Service Edge (SASE) (9th), Remote Browser Isolation (RBI) (2nd)
Cisco Secure Email Threat D...
Ranking in Email Security
23rd
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
16
Ranking in other categories
No ranking in other categories
Fortra's Agari
Ranking in Email Security
34th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
4
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Email Security category, the mindshare of Cloudflare One is 1.7%, up from 1.4% compared to the previous year. The mindshare of Cisco Secure Email Threat Defense is 1.1%, up from 1.0% compared to the previous year. The mindshare of Fortra's Agari is 0.7%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Cloudflare One1.7%
Cisco Secure Email Threat Defense1.1%
Fortra's Agari0.7%
Other96.5%
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.
NM
Enginner at Millennium Information Technologies
Has faced challenges with configuration, taking actions, and learning curve but benefits from centralized management and good technical support
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, are limited as ETD only supports sending audit logs. Customers have requirements for other system logs as well, which should be developed from their side. Another customer request is to restrict the IPs that can log in, which cannot be done from Cisco Secure Email Threat Defense yet. Any user with login details can log in. We can restrict the IPs in Cloud Mail Gateways, but not from Cisco Secure Email Threat Defense. It would be beneficial to improve this feature. Cisco Secure Email Threat Defense can take actions, such as requesting O365 to quarantine mail. In that case, the customer requires notification to the recipient from Cisco Secure Email Threat Defense. This option would be valuable if available. The real-time threat intelligence of Cisco Secure Email Threat Defense is an AI-based classification. It took one to two months to optimize the classification, but we still experience some false positives. Reducing the learning period would be beneficial. The learning curve shows that in the beginning, there are numerous false positives. For one month, we had to reclassify the false positives manually until the system learned. Reducing the learning time would be much better. Additional features desired in the next release include IP restrictions and user logging IP restrictions, ensuring only the customer environment can log in to Cisco Secure Email Threat Defense. Logs forwarding needs improvement as currently it only has audit logs. In Cloud Mail Gateway, we can create an IPsec tunnel to forward logs. However, in Cisco Secure Email Threat Defense, there is no option, and we must do API integration to send logs. Only SIM can get logs; Syslog cannot retrieve them.
Tom Foal - PeerSpot reviewer
CTO at Klaatu IT Security Ltd
Helps to detect and generate reports on phishing emails and saves from email compromises
We use the solution for marketing and brand protection.  I am impressed with the tool's discovery capabilities which help me find out who is sending the emails on the company's behalf. I also find the ability to detect and generate reports on phishing emails a valuable feature.  The product's…

Quotes from Members

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

Pros

"The blocking feature is very good."
"The simplicity of the solution is its valuable features as almost no effort was needed to learn the configurations. It is also one of the cheapest firewalls available in this category."
"It's a perfect solution from my perspective; it's easy to understand and easy to configure."
"It will take the blow rather than our applications should an attack occur."
"Cloudflare Zero Trust Platform removes the risk of exposing the applications to the public."
"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."
"Clover is the best product globally."
"I highly recommend it as one of the best choices."
"The advanced threat analytics and URL filtering in threat detection are good features that are working well."
"It has an efficient email filtering feature."
"The features and functionalities are much better than Microsoft's in-built Defender plan, and this product has helped us to protect our organization from any malware attack in the past."
"It's very easy to deploy and configure."
"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."
"Cisco Secure Email Cloud Mailbox can handle a complete portfolio, which is required to protect any kind of attack coming from emails. However, it does not have advanced phishing, but it is available through Cisco. If you compare Cisco Secure Email Cloud Mailbox with the competition, in the competition you have to have one or two solutions together to address the customer's requirement, whereas Cisco Secure Email Cloud Mailbox is addressing everything, such as web domain and email protection. If there is any kind of challenge it will come across through email."
"The solution is stable."
"They are very flexible as far as feature requests go."
"If spam or some kind of malicious email gets past Mimecast and gets into our email environment, we can go into Agari and we can search for it."
"It is really important for large companies to have the brand protection that is provided by Agari."
"Agari gives us visibility of our domain security, helps us manage our SPF, DKIM and DMARC records, prevents spoofing of our domains for phishing and ensures that our marketing and other emails are received correctly and not rejected as spam."
"It comes with a lot of helpful tips for complicated areas."
"Agari offers very good brand protection and they are the core founder of the DMARC standard."
"I am impressed with the tool's discovery capabilities which help me find out who is sending the emails on the company's behalf. I also find the ability to detect and generate reports on phishing emails a valuable feature."
 

Cons

"For the topic of improvement, providing some training material is one of my suggestions."
"Our customers no longer use Cloudflare because its service is subpar."
"Automation could be improved where you can easily add a TLS and SSL certificate to an application or web app if the developer did not include it."
"There are premium tier live service and lower tier live service, so we opted for the lower tier. But there is no medium tier where we pay a little extra and get a bit more service. So if that can be improved."
"The tool should provide on-premise versions. Currently, all versions are cloud-based."
"The pricing is an area that can be improved. Pricing, as far as I recall, was the source of our problems."
"Operating and tuning the product is difficult."
"The free plan has limitations. For example, I can only set up three rules, and the application firewall is unavailable."
"The learning curve shows that in the beginning, there are numerous false positives. For one month, we had to reclassify the false positives manually until the system learned."
"The search area has room for improvement."
"The pricing could always be better."
"The tool gives false positives and it needs to be more accurate. I would like to see AI as a new feature."
"I wouldn't recommend Cisco to others because I think Fortinet is better."
"Cisco's multiple product lines and verticals made this just one of their many verticals, and we could see a shift in focus."
"This solution could be improved by integration with Sandbox."
"Cisco Secure Email Cloud Mailbox can improve by adding advanced phishing, then the solution would become the best in the market. However, this could increase the price even more. Additionally, if CES with domain protection could be added it would be an even better solution."
"Some customers in the financial sector do not like the cloud solution because they don't want data to be transferred to a US-based cloud."
"The product's user interface is clunky. We have difficulty in finding what we need. I would also like to see automation in the onboarding processes."
"The protocol is quite complicated, which may not be something that could be improved, but it would be better if it was simplified."
 

Pricing and Cost Advice

"Cloudflare Zero Trust Platform's pricing is good."
"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 is not that expensive."
"The price tag is no longer $200,000, but rather $300,000 to $400,000. It's twice."
"The prices are slightly expensive."
"The solution's pricing lacks transparency."
"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."
"It is expensive compared to other vendors."
"The solution’s pricing is manageable."
"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 price of the licensing is based on the volume of email."
"The pricing depends on the number of users; per how many mailboxes you have, but they're pretty negotiable with that, too."
"The tool is not expensive and I would rate its pricing a four out of ten."
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Top Industries

By visitors reading reviews
Construction Company
18%
Comms Service Provider
10%
Outsourcing Company
9%
Financial Services Firm
9%
Marketing Services Firm
12%
Manufacturing Company
8%
Government
7%
Construction Company
7%
Financial Services Firm
13%
Outsourcing Company
9%
Construction Company
9%
Retailer
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise1
Large Enterprise12
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise6
Large Enterprise7
No data available
 

Questions from the Community

What needs improvement with Cloudflare Zero Trust Platform?
In my opinion, Cloudflare One can be improved mainly through compatibility, as the integration should be much simpler...
What is your primary use case for Cloudflare Zero Trust Platform?
Cloudflare One's primary use case for my organization is to protect servers and to provide remote access with the VPN...
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, ...
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 ...
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 De...
Ask a question
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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 Secure Email Cloud Mailbox, Cisco CMD, Cisco Cloud Mailbox Defense
No data available
 

Overview

 

Sample Customers

23andMe
Luiss University, Lone Star College, T-Systems, Magyar Telekom
NACHA
Find out what your peers are saying about Cisco Secure Email Threat Defense vs. Fortra's Agari and other solutions. Updated: August 2026.
907,787 professionals have used our research since 2012.