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Cisco Secure Email vs Heimdal Email Security comparison

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Comparison Buyer's Guide

Executive Summary

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
Ranking in Email Security
6th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
63
Ranking in other categories
Cisco Security Portfolio (9th)
Heimdal Email Security
Ranking in Email Security
57th
Average Rating
9.0
Reviews Sentiment
7.9
Number of Reviews
1
Ranking in other categories
Fraud Detection and Prevention (56th)
 

Mindshare comparison

As of August 2026, in the Email Security category, the mindshare of Cisco Secure Email is 4.4%, down from 5.5% compared to the previous year. The mindshare of Heimdal Email Security is 0.5%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Cisco Secure Email4.4%
Heimdal Email Security0.5%
Other95.1%
Email Security
 

Featured Reviews

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.
Melvin Ong - PeerSpot reviewer
Country Manager at PT Symcaw Solutions Indonesia
Straightforward to set up, reliable, and offers good functionality
We primarily use the solution for email security and general email management.  It's improved our productivity.  The solution works well overall. The functionality is very good.  The setup process is easy.  It is stable and reliable. It's scalable.  I don't have any specific areas that need…

Quotes from Members

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

Pros

"Email service is one of the services that we offer at Galaxy, and Cisco ESA has improved our business so much that our customers want to maintain their business with us for email security, with over 500 domains on our email platform and improved profitability in everything."
"It provided a platform to sell a service to customers."
"The tech engineers are very knowledgeable."
"Comparing Microsoft Defender and Cisco's Email Secure service, partners have noted that while Microsoft Defender offers email security, the tool's additional layer of protection provides further defense against threats like spam and phishing emails."
"There are a lot of filters for scam emails and things like that work out of the box. You can also use the antivirus features. I like its features."
"Overall, it is a very good product, and I'm very happy with it."
"The most valuable feature is the different content filters we are using, such as DKIM."
"The Cisco Secure Email Gateway, in my opinion, is a really good device."
"It is stable and reliable."
 

Cons

"In some cases, detection is missed, leading to false positives where genuine emails are flagged as spam."
"They could improve the filters. In my time at the company, there were several times we had to contact support to update the filters."
"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 interface is dated. It has looked pretty much the same for 15 years or so."
"The configuration UI should be made more intuitive. Currently, it takes a while to understand how to do the basic configurations."
"The reporting functionality needs to be improved."
"They can do it better with web links, with the URLs. They have a technology called Outbreak but it doesn't work as well as we would like."
"The solution does not have a strong outbound service. It should also integrate DLP."
"The solution could be less expensive."
 

Pricing and Cost Advice

"The product's price falls on the higher side when compared to the other products on the market."
"You're going to get what you pay for. If you're not willing to pay the price of Cisco, you're not going to get a product that's as good as Cisco. I don't think Cisco is overpriced, because for the last two years I've been comparing it to Microsoft and Cisco has been cheaper and given us more features."
"It is a reasonably priced solution."
"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."
"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."
"The price is significantly high."
"Cisco Secure Email and the support are priced well. It's not cheap, but there are other solutions that offer less and cost so much. For example, Microsoft is more expensive than Cisco."
"Cisco Secure Email is expensive, but we get what we pay for."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Manufacturing Company
9%
Outsourcing Company
8%
Computer Software Company
7%
Construction Company
21%
Manufacturing Company
9%
Performing Arts
7%
Comms Service Provider
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise18
Large Enterprise27
No data available
 

Questions from the Community

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 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 ...
What is your primary use case for Cisco Secure Email?
We are using Cisco Secure Email to monitor the outgoing and incoming mail traffic in our financial institute. We have nearly 900 branches all over India. We have an on-premises mail server in which...
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Also Known As

Cisco Email Security, IronPort, Cisco Email Security, ESA, Email Security Appliances
MailSentry
 

Overview

 

Sample Customers

SUNY Old Westbury, CoxHealth, City of Fullerton, Indra
Brother, Symbion, CPH West
Find out what your peers are saying about Proofpoint, Microsoft, Check Point Software Technologies and others in Email Security. Updated: August 2026.
911,039 professionals have used our research since 2012.