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Barracuda Email Security Gateway vs Mimecast Advanced Email Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 2, 2026

Review summaries and opinions

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

ROI

Sentiment score
4.7
Barracuda Email Security Gateway reduces threats, saves costs, and offers a 30-50% ROI for companies with multiple domains.
Sentiment score
5.3
Mimecast Advanced Email Security offers substantial protection against threats, justifying its cost despite support and stability concerns.
There is definitely a return on investment when using Mimecast, as it blocks phishing emails, reducing the risk of significant financial losses.
Senior Tech. Lead at WE
The ROI which companies see should be able to justify buying Mimecast Advanced Email Security.
Solution Architect Cybersecurity at Microland Limited
 

Customer Service

Sentiment score
7.4
Barracuda Email Security Gateway support is efficient and praised for responsiveness, though time zone differences can pose challenges.
Sentiment score
5.3
Mimecast Advanced Email Security offers responsive support, though users suggest enhancements in flexibility and documentation for even better service.
From the vendor, I would give the technical support an eight out of ten.
Head of cloud service. at a comms service provider with 51-200 employees
Support personnel are hesitant to engage in remote sessions, preferring to share documentation via email.
Senior Tech. Lead at WE
The customer support for Mimecast Advanced Email Security is excellent.
Manager - EUC at Finthrive
We instantly get customer support from Mimecast Advanced Email Security whenever there is a requirement.
System Engineer II at a media company with 5,001-10,000 employees
 

Scalability Issues

Sentiment score
8.1
Barracuda Email Security Gateway is scalable and flexible, popular among various users, with cloud options enhancing capabilities.
Sentiment score
7.0
Mimecast Advanced Email Security is highly scalable, seamlessly supporting diverse organizational sizes and large email volumes in cloud environments.
It handles email flow very smoothly, and we never face any issues with email delivery as our organization grows or email volume increases.
System Engineer II at a media company with 5,001-10,000 employees
If Mimecast Email Security introduces API solutions, it will dominate the market.
Email Security Engineer at Logic Infosecurity
While our user base remains around 2,200, I believe it can adapt to much larger requirements as needed, based on discussions with others managing larger organizations.
Manager - EUC at Finthrive
 

Stability Issues

Sentiment score
8.2
Barracuda Email Security Gateway is stable and reliable, with excellent support, crucial configuration, and high user satisfaction ratings.
Sentiment score
7.5
Mimecast Advanced Email Security is highly stable, reliable, and efficient, despite occasional downtime and login issues.
They confirm it's a good solution where only one or two rare emails get through, while the rest are properly blocked without any issues.
Email Security Engineer at Logic Infosecurity
The issues we did have were causing quite a lot of problems.
IT Manager at a logistics company with 201-500 employees
Mimecast Advanced Email Security is a good product and is very stable.
Solution Architect Cybersecurity at Microland Limited
 

Room For Improvement

Barracuda Email Security Gateway needs improvements in backup, DoS handling, integration, spam filtering, UI, scalability, and threat intelligence.
Mimecast Advanced Email Security needs better support, interface, accuracy, simplified admin features, competitive pricing, and enhanced phishing detection.
When we add mails to email secure Sender Policy Authentication with extended options, all mails must pass this Mail Security Gateway.
Graduate Student at ain shams
Sometimes there are false positive emails coming through, so they should improve further on detection technologies and techniques.
Head of cloud service. at a comms service provider with 51-200 employees
If it's considered a phishing email, it should be blocked for all users, not just some.
IT Administrator at a energy/utilities company with 201-500 employees
When you buy an XDR provider, they give you a complete holistic story around it, showing what has happened, which email somebody has clicked on, whether there have been any changes, and whether there is any network activity.
Solution Architect Cybersecurity at Microland Limited
A lot of emails were missed despite being known samples.
Senior Tech. Lead at WE
Mimecast Email Security is somewhat expensive compared to the competition in the Indian market.
Co-Founder & VP-Sales at QuantumShield Technologies LLP
 

Setup Cost

Barracuda Email Security Gateway offers competitive, cost-effective pricing, adaptable to business size, often cheaper than alternatives like Cisco IronPort.
Mimecast Advanced Email Security is costly, with some users valuing its ROI, while others find it non-competitive.
Compared with others, Barracuda Email Security Gateway is cheaper.
Head of cloud service. at a comms service provider with 51-200 employees
The pricing is higher for Mimecast, particularly for the Indian market, where it is considered expensive.
Senior Tech. Lead at WE
Regarding the price, I think that in terms of similar products, it is pretty much in the same line, so I think it's reasonable.
IT Manager at a logistics company with 201-500 employees
Overall, my experience with pricing, setup costs, and licensing was smooth.
Manager - EUC at Finthrive
 

Valuable Features

Barracuda Email Security Gateway offers robust spam and threat protection with user-friendly interface and seamless integration, enhancing email security.
Mimecast offers comprehensive email security with phishing prevention, sandboxing, and seamless Microsoft 365 integration, ensuring robust threat protection.
The real-time threat intelligence feature is particularly useful as it detects all kinds of threats identified by incoming mails.
Graduate Student at ain shams
The most valuable feature of Barracuda Email Security Gateway that I have found is advanced threat protection.
Head of cloud service. at a comms service provider with 51-200 employees
There was a signature phishing scam on the internet, but Mimecast Advanced Email Security caught it before it came to fruition and instantly blocked that signature-based phishing scam.
System Engineer II at a media company with 5,001-10,000 employees
It easily generates reports about the kinds of emails coming in weekly and classifies them into various categories, making it very helpful to analyze and ensure our email gateway remains safe and secure by updating all security patches.
Senior Managing Consultant at a tech vendor with 10,001+ employees
A distinct advantage of Mimecast is its ability to block phishing and impostor attacks, which are significant threats currently.
Senior Tech. Lead at WE
 

Categories and Ranking

Barracuda Email Security Ga...
Ranking in Secure Email Gateway (SEG)
6th
Average Rating
8.0
Reviews Sentiment
7.0
Number of Reviews
55
Ranking in other categories
DMARC Authentication Software (2nd)
Mimecast Advanced Email Sec...
Ranking in Secure Email Gateway (SEG)
3rd
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
44
Ranking in other categories
Email Archiving (2nd), Secure Web Gateways (SWG) (10th), Office 365 Protection (2nd)
 

Mindshare comparison

As of July 2026, in the Secure Email Gateway (SEG) category, the mindshare of Barracuda Email Security Gateway is 9.6%, up from 6.1% compared to the previous year. The mindshare of Mimecast Advanced Email Security is 15.2%, up from 12.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Mimecast Advanced Email Security15.2%
Barracuda Email Security Gateway9.6%
Other75.2%
Secure Email Gateway (SEG)
 

Featured Reviews

MM
Graduate Student at ain shams
Secures email by identifying threats and managing email policies effectively
The intuitive management interface feature makes email security policies very easy to implement as it's all about features that need to be enabled or disabled. Our investigation in any incident or mail is very useful as it provides all details about incoming mails, enabling thorough review and detection. The real-time threat intelligence feature is particularly useful as it detects all kinds of threats identified by incoming mails. The Impersonation license utilizes AI tools. Sometimes some phishing mails are reported as phishing, but they are not actually phishing mails. They are detected due to certain words and languages that appear suspicious but were generated by AI tools. Everyone or an advisor may use it for their own purpose or learning, even though it indicates that the mail detected is phishing when it's not.
Avinash Mishra - PeerSpot reviewer
Manager - EUC at Finthrive
Advanced email filtering has blocked massive spam volumes and prevents unauthorized data leaks
Improvements for Mimecast Advanced Email Security include enhancing the user interface and accessibility, particularly regarding admin capabilities to add or modify user accounts. Streamlining this could improve overall usability and security management for users. Reporting is another area needing improvement in Mimecast Advanced Email Security, as the reports provided are not very easy to decipher. With artificial intelligence being integrated into various tools including Mimecast Advanced Email Security, I believe there is potential to enhance functionality, enabling users to ask specific questions and retrieve concise answers instead of overwhelming data. I choose a nine for Mimecast Advanced Email Security because improvements such as better user interface and artificial intelligence integration features would greatly enhance its usability. While no tool is perfect, these adjustments could greatly elevate Mimecast Advanced Email Security's capabilities.
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Use our free recommendation engine to learn which Secure Email Gateway (SEG) solutions are best for your needs.
904,836 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Financial Services Firm
10%
Manufacturing Company
9%
Construction Company
7%
Outsourcing Company
7%
Computer Software Company
11%
Financial Services Firm
9%
Construction Company
8%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business35
Midsize Enterprise12
Large Enterprise13
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise12
Large Enterprise18
 

Questions from the Community

What is your experience regarding pricing and costs for Barracuda Sentinel?
Compared to the features and stability, Barracuda Email Security Gateway is affordable in terms of pricing, setup cost, and licensing.
What needs improvement with Barracuda Sentinel?
On technical aspects, I think Barracuda needs to provide a fast response to any vulnerability on the system and enhance Barracuda support. Customer support for Barracuda Email Security Gateway need...
What is your primary use case for Barracuda Sentinel?
My main use case for Barracuda Email Security Gateway is to protect our email and our email users, protecting our business from most of the sophisticated attacks like phishing attacks and spam. We ...
What needs improvement with Mimecast Email Security with Targeted Threat Protection?
There is room for improvement since new threats are emerging. Considering the availability of new features would be worthwhile. Mimecast Email Security is somewhat expensive compared to the competi...
 

Also Known As

Barracuda Spam and Virus Firewall, Barracuda Sentinel
Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Email and Collaboration Threat Protection
 

Overview

 

Sample Customers

Evolution Recruitment Solutions, Evans Delivery Company, Osoyoos Credit Union, Synovis Life Technologies, Camden County Technical Schools, DEK, Evans Delivery Company, Colgate Rochester Crozer, Hemmera, South Carolina Heart Center, Ferma Corporation, Major League Baseball (MLB), Healy Brothers Automotive Group
Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Find out what your peers are saying about Barracuda Email Security Gateway vs. Mimecast Advanced Email Security and other solutions. Updated: June 2026.
904,836 professionals have used our research since 2012.