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Barracuda Email Security Gateway vs Mimecast Email and Collaboration Threat Protection comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Feb 11, 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
5.5
Mimecast Advanced Email Security is valued for robust protection despite challenges in quantifying ROI and gaps in support and stability.
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
 

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
5.6
Mimecast Advanced Email Security's technical support receives varied feedback, highlighting promptness, knowledge, but some issues with responsiveness and personalization.
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
Mimecast technical support is generally quite good.
Information Security Analyst at Enfield Central Library
I would rate my experience with technical support of Mimecast Email Security between seven and eight out of ten for their support.
Email Security Engineer at Logic Infosecurity
 

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 adaptable, scalable, and rated highly for flexibility and user handling across diverse sectors.
If Mimecast Email Security introduces API solutions, it will dominate the market.
Email Security Engineer at Logic Infosecurity
From what I've seen from the MSP, it seems quite complicated to manage the configuration itself.
IT Manager at a logistics company with 201-500 employees
 

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 stable and reliable, with occasional login issues and rare performance interruptions reported by users.
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
 

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 is criticized for complex installation, costly pricing, and numerous functionality and support issues.
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
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
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
Mimecast Email Security is somewhat expensive compared to the competition in the Indian market.
Co-Founder & VP-Sales at QuantumShield Technologies LLP
A lot of emails were missed despite being known samples.
Senior Tech. Lead at WE
Mimecast Email Security can be improved by adding some API integrations.
Email Security Engineer at Logic Infosecurity
 

Setup Cost

Barracuda Email Security Gateway offers competitive, cost-effective pricing, adaptable to business size, often cheaper than alternatives like Cisco IronPort.
Enterprise buyers view Mimecast's email security as costly, with subscription fees per user and competitors like Microsoft Defender more affordable.
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
 

Valuable Features

Barracuda Email Security Gateway offers robust spam and threat protection with user-friendly interface and seamless integration, enhancing email security.
Mimecast Advanced Email Security provides comprehensive protection, easy integration, user-friendly setup, and valuable insights for enhanced email security.
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
A distinct advantage of Mimecast is its ability to block phishing and impostor attacks, which are significant threats currently.
Senior Tech. Lead at WE
Mimecast Email Security is a good solution because our customers haven't reported any phishing emails being delivered.
Email Security Engineer at Logic Infosecurity
Mimecast Email Security offers certain features inherent to the product which are beneficial.
Co-Founder & VP-Sales at QuantumShield Technologies LLP
 

Categories and Ranking

Barracuda Email Security Ga...
Ranking in Secure Email Gateway (SEG)
7th
Average Rating
8.0
Reviews Sentiment
7.0
Number of Reviews
55
Ranking in other categories
DMARC Authentication Software (3rd)
Mimecast Email and Collabor...
Ranking in Secure Email Gateway (SEG)
3rd
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
39
Ranking in other categories
Email Archiving (2nd), Secure Web Gateways (SWG) (19th), Office 365 Protection (2nd)
 

Mindshare comparison

As of March 2026, in the Secure Email Gateway (SEG) category, the mindshare of Barracuda Email Security Gateway is 9.0%, up from 6.8% compared to the previous year. The mindshare of Mimecast Email and Collaboration Threat Protection is 17.1%, up from 11.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Email Gateway (SEG) Mindshare Distribution
ProductMindshare (%)
Mimecast Email and Collaboration Threat Protection17.1%
Barracuda Email Security Gateway9.0%
Other73.9%
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.
HS
Email Security Engineer at Logic Infosecurity
Experience high detection and user-friendly policies with reliable email security implementation
The system is not user-friendly because you have to create policies that are mapped in a dictionary. As an IT engineer, I understand how it works, but explaining it to another IT person can be difficult. Having more user-friendly dashboards would improve the work experience. In Mimecast Email Security, checking policies in the dictionary or gateway is very complicated, and not everyone understands this process. If you examine the Check Point portal, it's user-friendly with easily accessible tabs that anyone can explore. With Mimecast Email Security, making changes might impact existing mailboxes. The portal is complicated compared to Check Point's user-friendly interface.
report
Use our free recommendation engine to learn which Secure Email Gateway (SEG) solutions are best for your needs.
885,264 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Manufacturing Company
10%
Computer Software Company
8%
Financial Services Firm
7%
University
6%
Computer Software Company
12%
Financial Services Firm
8%
Manufacturing Company
6%
Comms Service Provider
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise13
Large Enterprise13
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise11
Large Enterprise13
 

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 do you like most about Mimecast Email Security with Targeted Threat Protection?
The interface of this solution is very easy to navigate and user-friendly. There is no delivery in email and other communications, making it reliable. The configuration is relatively easy.
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, Mimecast Advanced Email Security
 

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 Email and Collaboration Threat Protection and other solutions. Updated: February 2026.
885,264 professionals have used our research since 2012.