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Cisco Secure Email Threat Defense vs Microsoft Exchange Online Protection (EOP) 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
8.6
Reviews Sentiment
6.5
Number of Reviews
23
Ranking in other categories
Secure Web Gateways (SWG) (13th), Data Loss Prevention (DLP) (20th), Cloud Access Security Brokers (CASB) (12th), Distributed Denial-of-Service (DDoS) Protection (7th), Software Defined WAN (SD-WAN) Solutions (12th), Access Management (11th), Bot Management (3rd), ZTNA as a Service (9th), ZTNA (4th), Secure Access Service Edge (SASE) (10th), Remote Browser Isolation (RBI) (3rd)
Cisco Secure Email Threat D...
Ranking in Email Security
18th
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
16
Ranking in other categories
No ranking in other categories
Microsoft Exchange Online P...
Ranking in Email Security
7th
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
42
Ranking in other categories
Anti-Malware Tools (14th)
 

Mindshare comparison

As of May 2026, in the Email Security category, the mindshare of Cloudflare One is 1.7%, up from 1.6% compared to the previous year. The mindshare of Cisco Secure Email Threat Defense is 1.1%, up from 1.1% compared to the previous year. The mindshare of Microsoft Exchange Online Protection (EOP) is 3.5%, down from 6.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Microsoft Exchange Online Protection (EOP)3.5%
Cisco Secure Email Threat Defense1.1%
Cloudflare One1.7%
Other93.7%
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.
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.
NancyHartman - PeerSpot reviewer
Business Process Manager/ Educational Technologist at a educational organization with 1,001-5,000 employees
Layered email security has protected sensitive research and still flags phishing in real time
The valuable features of Microsoft Exchange Online Protection (EOP) include providing an additional layer of protection, as it builds on the basic Exchange level of security that allows us to get our work done. Another feature I appreciate is the ability to question things, as our Exchange server allows us to identify in real-time if an email is a phishing email or spam email. It really helps us identify risks, especially through our external exchanges via email or through our cloud-based platforms. Our Exchange system blocks any embedded AI from all our applications and products, so we cannot use embedded AI in our daily work from our official laptops because we have secure information. The system is quite locked down.

Quotes from Members

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

Pros

"Cloudflare DDoS mitigates DDoS attacks."
"It's the endpoint exposition. We don't need to expose our VPN server to the internet and need a zero-test solution. I can apply some conditional access to the endpoint that's connecting to our network to check their security policies or the security condition of their workstation. Once the workstation is trying to connect to my internal network, then I would like to check the discrete condition of these endpoints that are trying to access my internal network. We created some conditional access. We have CrowdStrike, to check if the CrowdStrike is installed, to check if it's updated, and to check for Windows updates. We created some conditional policies to check it."
"I'm very satisfied with the environment and the dashboard."
"Cloudflare, in my opinion, was easy to implement."
"The capabilities of the software are strong enough for me to do what it's supposed to do. For me, we don't need to do a lot of configuration on our site. We just enable it and monitor it."
"Clover is the best product globally."
"Enables me to work from two locations."
"Cloudflare Zero Trust Platform removes the risk of exposing the applications to the public."
"It has an efficient email filtering feature."
"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."
"Secure Email Threat Defense's scalability is good."
"Cisco's technical support is very good."
"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 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, and this product has helped us to protect our organization from any malware attack in the past."
"It has a really nice web-based administration console."
"We use the solution to receive emails. We do not use the calendar function as our clients are slow adaptors to the latest features."
"Microsoft Exchange Online Protection (EOP) is the best email solution with more features and robust security, making it ideal for corporate use."
"The most valuable features of Microsoft Exchange Online Protection are the EOP, ATP, safe links, fishing, and antispam."
"The initial setup is just a standard process."
"The solution uses artificial intelligence and machine learning, so you don't need train it to detect something. The detection and response times are short. It's an excellent product."
"We use the solution in all our environments. We use it for remedy tickets and give them updates. It was our main communication point."
"We like the holding facility that is available for potentially suspicious URL's. This allows a real-time review to be performed before the email reaches a users inbox."
 

Cons

"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 software has automated alerts, but the automated alerts are not available in the mobile app."
"Our customers no longer use Cloudflare because its service is subpar."
"Lacks a VPN feature to provide a secure connection to the data center."
"Cloudflare DDoS has poor technical support."
"Cloudflare One is not very powerful, but for what we require, it is basic and sufficient."
"I would like them to include a VPN feature to provide a secure connection to the data center."
"Feedback could be enhanced. While I work efficiently with Clover as a partner in Mexico City, sometimes the information and requests are easier to manage with more concrete solutions."
"We encounter issues while searching for missing emails."
"This solution could be improved by integration with Sandbox."
"Customers will benefit greatly from monthly billing because the majority of customers today use the cloud, be it Office 365, or Google Cloud."
"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."
"Cisco's multiple product lines and verticals made this just one of their many verticals, and we could see a shift in focus."
"The physical appliance has been discontinued, although the platform still exists."
"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."
"The solution is a bit expensive."
"Having orchestration features added to Microsoft Exchange Online Protection, particularly automation and remediation, would be quite useful."
"It would be helpful for customers if Plan 1 features were included with EOP."
"Some features, like encryption, are not available."
"We would like the solution to have more in-built intelligence in the way that it reviews potential security risks, rather than our team constantly having to update the policies."
"The product could be more stable. Microsoft products could be more stable because sometimes, even though they are updating some things, we cannot find those updates."
"Our company faces difficulty with Microsoft Exchange Online Protection (EOP) because it's too big, clunky, and difficult for a small client to implement quickly and easily."
"It doesn't protect against everything. We do need protection for, for example, endpoints."
"The price of Microsoft Exchange Online Protection could be reduced to make it more competitive."
 

Pricing and Cost Advice

"The pricing is somewhere in the middle. I would rate the pricing a seven out of ten."
"Cloudflare Zero Trust Platform's pricing is good."
"The price tag is no longer $200,000, but rather $300,000 to $400,000. It's twice."
"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."
"The prices are slightly expensive."
"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 solution is not that expensive."
"The solution’s pricing is manageable."
"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 price could be lower."
"Regarding the price, it's comparable to other service providers. We've also looked at Check Point's offerings, and the pricing doesn't seem to be an issue."
"The price of Microsoft Exchange Online Protection is reasonable."
"Microsoft Exchange Online Protection is a good solution at an affordable price. It is a good investment."
"The product is expensive."
"The solution is priced high and could be less expensive compared to other solutions."
"The pricing of the solution is reasonable."
"It is a low-price solution."
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Top Industries

By visitors reading reviews
Construction Company
21%
Comms Service Provider
10%
Financial Services Firm
8%
Manufacturing Company
6%
Marketing Services Firm
12%
Manufacturing Company
8%
Healthcare Company
7%
Computer Software Company
7%
Financial Services Firm
11%
Computer Software Company
9%
Manufacturing Company
9%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise2
Large Enterprise11
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise6
Large Enterprise7
By reviewers
Company SizeCount
Small Business24
Midsize Enterprise7
Large Enterprise11
 

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 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...
What needs improvement with Microsoft Exchange Online Protection?
From an end-user point of view, I am quite happy with Microsoft Exchange Online Protection (EOP) because my favorite ...
What is your primary use case for Microsoft Exchange Online Protection?
Microsoft Exchange Online Protection (EOP) serves as the main use case for my company because, as a research company,...
What advice do you have for others considering Microsoft Exchange Online Protection?
My experience with Microsoft Exchange Online Protection (EOP) is from an end-user perspective, and I do not have admi...
 

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
Microsoft EOP, MS Exchange Online Protection
 

Overview

 

Sample Customers

23andMe
Luiss University, Lone Star College, T-Systems, Magyar Telekom
Information Not Available
Find out what your peers are saying about Cisco Secure Email Threat Defense vs. Microsoft Exchange Online Protection (EOP) and other solutions. Updated: April 2026.
892,611 professionals have used our research since 2012.