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Barracuda Email Protection vs Cisco Secure Email comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Apr 20, 2025

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

Microsoft Defender for Offi...
Sponsored
Ranking in Email Security
1st
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
52
Ranking in other categories
Email Archiving (1st), Advanced Threat Protection (ATP) (2nd), Microsoft Security Suite (10th), Secure Email Gateway (SEG) (1st)
Barracuda Email Protection
Ranking in Email Security
14th
Average Rating
8.8
Reviews Sentiment
7.4
Number of Reviews
18
Ranking in other categories
Email Archiving (2nd), Office 365 Protection (5th)
Cisco Secure Email
Ranking in Email Security
3rd
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
62
Ranking in other categories
Cisco Security Portfolio (7th)
 

Mindshare comparison

As of June 2025, in the Email Security category, the mindshare of Microsoft Defender for Office 365 is 12.6%, down from 17.6% compared to the previous year. The mindshare of Barracuda Email Protection is 2.9%, up from 1.7% compared to the previous year. The mindshare of Cisco Secure Email is 6.4%, down from 8.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security
 

Featured Reviews

Tolu Omolaja - PeerSpot reviewer
Great URL scanning and attachment scanning, but I would like more proactive threat analysis
The two main features that prove most beneficial for us are URL scanning and attachment scanning. URL scanning involves an automatic scan of links and emails. When a user clicks on a link within an email, the system promptly checks the link's safety. If the link is deemed safe, access is granted automatically. However, if it is flagged as unsafe, we receive feedback and notification to caution us about the potentially harmful link. At this point, we are presented with the option to proceed or return. I have personally witnessed the system identify a few unsafe links, making this the primary advantage of using the solution. The second crucial aspect is the scanning of attachments. When an email containing an attachment arrives, we receive a notification of the new email, along with information that the attachment is being scanned for threats. This additional layer of security provides peace of mind for our organization. While Microsoft Defender for Office 365 offers numerous features, these two stand out as particularly impressive and valuable to us.
LeeMiles - PeerSpot reviewer
Very good threat protection, spam filtering, and cloud backups
Considering it integrates with Azure, I would like to be able to effectively set up policies where people are by default included in certain settings. For instance, for email quarantine, I can't set up a global setting. Users must go through an induction session where I guide them in configuring quarantine alerts rather than having default settings based on group membership. This seems like an oversight since they already use Active Directory details. They should assign policies based on group membership, which configures these settings by default.
Kostas Karidas - PeerSpot reviewer
Helps prevent security breaches but fails to improve in the area of AI
I have not noticed any impressive advanced threat protection mechanisms in the tool. I don't know if there are any AI features in the product. I don't know if there is any other technology embedded in the solution. Cisco Secure Email successfully mitigated potential email threats. My company has seen plenty of scenarios where Cisco Secure Email successfully mitigated potential email threats, spam emails, and fraudulent domains. The product is good for dealing with spam emails, and it can take care of more than 100 spam emails per day. A huge number of spam emails are monitored with the help of Cisco Secure Email. I would not recommend the product to other businesses because you need to have some kind of expertise in configuring and knowing a bit about the tool's GUI. The tool also lacks in the area of AI mechanics. If I would like to have an overview and review another solution, I would go for another product other than Cisco Secure Email. I can definitely suggest others to look at the product and review it, but I would also recommend that they compare it with the other solutions in the market. I wouldn't prioritize Cisco Secure Email over other tools. Either the support partner of the product or I take care of the tool's maintenance phase by looking into the configurations and doing some fine-tuning. I rate the tool a seven to eight out of ten.

Quotes from Members

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

Pros

"I would say that 90% of the spam and phishing attack emails get blocked right off the bat."
"The good part is that you don't have to configure it, which is very convenient."
"The ability to respond to threats if very important."
"There are several features that I consider valuable."
"I like its investigation capabilities, as that is what is most important to me. It is fairly simple with a user-friendly interface."
"We use Microsoft Defender for its ability to integrate with existing business technologies, which is beneficial for protecting business areas."
"Defender for Office 365 has helped eliminate having to look at multiple dashboards and that is the aspect I like most about it. It is simpler, effective, and convenient. The users like the process efficiency."
"It’s easy to handle integrations, and we don't need a lot of people in our IT team."
"The most valuable features of Barracuda Essentials are it's a trusted name and is rated very high on review sites. It blocks high percentages of spam and junk email and it's in the cloud. They have hardware appliances, but this is in the cloud. The solution is very effective at blocking malware and blocking spam and this is what we are looking for. There's not a whole lot of complexity, you want a solution that is very good at blocking out all of the unwanted emails."
"When we got the service, it included the email archiver with unlimited storage."
"The archiving and search features are very good."
"We check the reports sometimes to see that frequent attacks and malicious emails are being blocked by the solution."
"The solution is straightforward to set up."
"The best feature of Barracuda Email Protection is that it provides protection for Microsoft 365."
"Barracuda email protection is stable. I would give it a nine because of its strong cybersecurity features."
"The most valuable aspect includes attempts to spoof or compromise domains from external sources."
"The solution works well."
"This solution provides some benefits, like comfortable access to TAC support. You get prompt support when working directly with Cisco."
"The strong point of the solution is that we hardly get any spam emails because of Cisco Secure Email."
"The tool has a DLP solution which we can implement. Its database is updated regularly."
"The most valuable features are Advanced Malware Protection, URL filtering, and of course Reputation Filtering."
"It is doing its work. It is doing what it was actually designed to do. It has ensured we don't have business email compromises, and it has also ensured that our brand Galaxy is unique all year round."
"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."
"Cisco Secure Email has strong inbound services."
 

Cons

"The certification training for Defender for 365 needs to be deeper and incorporate Sentinel. I took all the security courses except one, and Sentinel isn't included."
"There's room for improvement regarding the time frame for retrieving emails."
"Microsoft Defender for Office 365 should be more proactive."
"Microsoft wants its well-paying customers to finish testing some of its half-baked products, find bugs, and report bugs back to Microsoft's team, which is a little frustrating for those who have to manage it and roll it up to thousands of people across the organization."
"Microsoft sometimes has downtime, and we'll get several incidents coming in back to back. We have a huge backlog of notifications, many of which may be false positives. However, there might be serious alerts, so we can't risk dismissing all of them at once."
"We noticed that from time to time, Microsoft's stability does have problems. Sometimes the service goes up and down. Sometimes they change without prior notice."
"Sometimes, phishing emails manage to pass through the filter, so the system needs to enhance its phishing email detection capabilities."
"Specifically, within Microsoft Defender for Office 365, I want it to improve the DLP capabilities."
"Considering it integrates with Azure, I would like to be able to effectively set up policies where people are by default included in certain settings."
"Two to three months back, we got fraudulent emails in which someone in the organization was being blamed."
"Barracuda Essentials can improve by continually adding more features."
"I would like to see some additional functionality in terms of employee monitoring, as part of a work-from-home security solution."
"The solution's reporting mechanism is a little poor and could be improved."
"The platform's pricing needs improvement."
"Barracuda Email Protection needs better reporting and more robust integration with security awareness training platforms and third-party solutions."
"I would like to see better integration with other products."
"I would like to see sandboxing for email, where suspicious emails received by the system are analyzed through online services."
"The hardware is not up to the mark. Two to three times a year we have complete downtime."
"The scalability must be improved."
"We have Microsoft and we have the E5 licenses, they have more EDR responses on certain emails. That's something that Cisco ESA on the cloud doesn't have. They don't do anything about MITRE attacks. They only detect if there is a malicious email or a threat and they remove it."
"I would like more functionality and how to use it for Level 2 type staff. The biggest issue is it needs to be easier to use and navigate."
"I am not satisfied with the solution's reporting and logging."
"The tool's pricing can be improved."
"The initial setup was complex because I have two sites with physical clusters."
 

Pricing and Cost Advice

"It's a user-base subscription."
"Microsoft Defender is expensive. I typically recommend it only if clients have the budget. Otherwise, I would suggest an alternative."
"Compared to other brands, Microsoft Defender for Office 365's pricing is competitive."
"While Microsoft Defender for Office 365 necessitates pricier E3 or E5 subscriptions, the extensive functionality offered by these licenses across various Microsoft products justifies the investment."
"I know that the product is incredibly expensive."
"Defender is a little bit more expensive as compared to others. We are in the manufacturing environment. So, we don't have a high budget for all of our endpoint devices. Its cost is a major concern for us."
"For licensing, it's usually a yearly package for customers who are subscribed to Office 365, but they can also pay on a monthly basis."
"The pricing is normal. Considering its popularity, it's not overpriced."
"We didn't have to pay a lot for the solution because we got it from a good vendor with a good user volume."
"We pay annually. They never charged us for anything else. And they were quite a bit under that $20,000 mark. It was $19,074. And they've been pretty good about not skyrocketing the price or anything like that. It has gone up. It's gone up to $24,000 in 2020."
"Despite a list price possibly around $40 per user, their market price allows customers to easily buy the solution."
"The product is expensive."
"The solution's pricing is moderate, where it is neither cheap nor expensive."
"The price is similar to that of Microsoft 365."
"The price of Barracuda Essentials is better than some of the competing products."
"Barracuda licensing model is good."
"In my previous organization, avoiding four instances of CryptoLocker within an estimated six month period is approximately $600,000 in lost time and effort. Our five year cost was about a million dollars, and the four outages that we had equated to 65 percent of that five year cost."
"I don't have the insights into it, but compared to different products, it seems to have a medium level of pricing."
"It is not that costly. We pay for the solution through a contractor and pay an annual fee."
"Licensing costs depend on how many users there are. It could range between $5 and $7 per month, per user."
"It is an expensive product. I rate its pricing an eight or nine."
"Pricing depends on your environment and which model you want to buy."
"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."
"The licensing is a mess and needs sorting out. I am not really concerned about the pricing because I only make recommendations, not buying decisions."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
9%
Manufacturing Company
8%
Government
6%
Computer Software Company
18%
Construction Company
8%
Manufacturing Company
7%
University
6%
Educational Organization
24%
Computer Software Company
18%
Financial Services Firm
8%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Microsoft Defender for Office 365?
Threat Explorer is an invaluable tool for me, and it plays a crucial role in helping me discern the origins of variou...
What is your experience regarding pricing and costs for Microsoft Defender for Office 365?
Microsoft is quite affordable with a lot of features available for any size organization.
What needs improvement with Microsoft Defender for Office 365?
Microsoft could improve by offering recommendations for domain spoofing attacks, especially scenarios where DNS recor...
What do you like most about Barracuda Email Protection?
Barracuda Email Protection is easy to deploy and maintain. It doesn't require a specialized resource to manage this t...
What is your experience regarding pricing and costs for Barracuda Email Protection?
Their list price is too high, but in India, the selling price is affordable at around $10 per user per year. Despite ...
What needs improvement with Barracuda Email Protection?
Considering it integrates with Azure, I would like to be able to effectively set up policies where people are by defa...
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 ...
 

Also Known As

MS Defender for Office 365
Barracuda Essentials
Cisco Email Security, IronPort, Cisco Email Security, ESA, Email Security Appliances
 

Overview

 

Sample Customers

Microsoft Defender for Office 365 is trusted by companies such as Ithaca College.
ACT Government, Acumen Group, AGIP, Delta Dental Plans Association, Desai/Nasr Consulting Engineers, Inc., Equinox Information Systems
SUNY Old Westbury, CoxHealth, City of Fullerton, Indra
Find out what your peers are saying about Barracuda Email Protection vs. Cisco Secure Email and other solutions. Updated: June 2025.
857,162 professionals have used our research since 2012.