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Cisco Web Security Appliance vs Mimecast Advanced Email Security comparison

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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
iboss offers significant ROI by saving bandwidth and enhancing security, despite increased costs from cloud migration and device pricing.
Sentiment score
6.7
Cisco Web Security Appliance provides valuable security with positive ROI, especially during heightened threats, justifying the investment.
Sentiment score
5.3
Mimecast Advanced Email Security offers effective protection and reliability, justifying investment despite uncertain breach cost quantification.
With iboss, whenever you turn on your laptop, the iboss agent automatically connects to the iboss cloud, enforcing all security policies. So with respect to the security side, it strengthens measures.
Senior Consultant Proxy Engineering at a financial services firm with 10,001+ employees
I have seen some cost effectiveness from iboss; it has reduced certain support requirements, making it a more hands-off solution.
Managing Director
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
7.8
Iboss support is praised for responsiveness and knowledge, with some concerns about communication but generally favorable reviews.
Sentiment score
6.4
Cisco Web Security support feedback is mixed, with varied satisfaction based on responsiveness and technician expertise across different tiers.
Sentiment score
5.3
Mimecast Advanced Email Security is praised for support responsiveness and efficiency, though some find the responses too generic.
They are very fast, responsive, and knowledgeable.
Head of Cybersecurity at SES Water
The quality of the support is fantastic.
Educational Technology Coordinator at a performing arts with 201-500 employees
We had promising discussions about resolving these issues, but no real action followed.
Network Administrator at a educational organization with 51-200 employees
Generally, the response time for resolving issues is getting slower.
Security Solution Architect at a tech services company with 501-1,000 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
7.3
Iboss efficiently scales to meet growing resource demands, supporting large user bases with robust support and adaptable infrastructure.
Sentiment score
7.5
Cisco Web Security Appliance scales well, integrates with devices, supports virtual environments, and suits large organizations despite clustering issues.
Sentiment score
7.0
Mimecast Advanced Email Security is highly scalable, accommodating diverse organizational sizes and seamlessly handling growth and geographic expansion.
They are also able to meet on-demand requirements based on your contract with them, and can easily provide adequate resources and scalability.
Senior Consultant Proxy Engineering at a financial services firm with 10,001+ employees
I would rate it a nine out of ten for scalability.
If I start seeing sluggishness or anything like that, I just reach out to my rep, and they connect with their dev team, typically resolving it the same day.
Educational Technology Coordinator at a performing arts with 201-500 employees
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
7.6
Iboss is generally stable with reliable support, despite initial deployment challenges, and is often praised for minimal downtime.
Sentiment score
7.8
Cisco Web Security Appliance is stable and reliable, though potential issues arise from infrastructure complexity and power management.
Sentiment score
7.5
Mimecast Advanced Email Security is stable and reliable, despite occasional login issues and rare service interruptions, ensuring user satisfaction.
It's been pretty solid; I've never had an outage with them, and if I ever had, it's only been once out of the seven years.
Educational Technology Coordinator at a performing arts with 201-500 employees
We've experienced zero downtime.
Head of Cybersecurity at SES Water
Our biggest problem with their service was it did not recognize the device despite our ClearPass sending information to the iboss box.
Network Administrator at a educational organization with 51-200 employees
It is very stable, a product that I put on the network, and it will run for a very long time.
Security Solution Architect at a tech services company with 501-1,000 employees
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

Iboss struggles with Mac support, ISP integration in India, and needs improvements in security features and cloud integration.
Cisco Web Security Appliance requires better UI, automation, pricing flexibility, tech support, integration, mobile compatibility, and enhanced features.
Mimecast Advanced Email Security needs better support, user experience improvements, cost reduction, and advanced AI integration for effectiveness.
It is not as intuitive as the rest of the platform.
Head of Cybersecurity at SES Water
We also had a problem with a transition when we upgraded from one appliance of theirs to another, but their engineer lost a good deal of our data.
Network Administrator at a educational organization with 51-200 employees
Our iboss subscription access should be more secure with an OTP or VPN etc.
Once it is done correctly, the functionality and reports become valuable, although the implementation part can still be challenging.
Security Solution Architect at a tech services company with 501-1,000 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

Iboss offers competitive, transparent pricing with valuable cloud solutions, appealing to enterprises for predictable budgeting and desired functionality.
Cisco Web Security Appliance is costly, suitable for larger enterprises, and aligns with market trends for robust security features.
Mimecast Advanced Email Security is considered costly per user, with Microsoft's similar features often being more affordable.
It offers the same features you would get from a vendor that charges 250,000 British pounds for a fraction of the price.
Head of Cybersecurity at SES Water
The following year, the cost of just licensing was similar to what was paid the previous year for a new appliance along with the implementation and licensing costs.
Network Administrator at a educational organization with 51-200 employees
Regarding pricing, setup costs, and licensing, iboss is not cheap, and that's my only concern.
Managing Director
Cisco is not a product for small companies due to its pricing.
Security Solution Architect at a tech services company with 501-1,000 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

Iboss provides comprehensive cloud security with advanced features, enhancing data protection and management efficiency for network security.
Cisco Web Security Appliance offers strong web protection, user-friendly operation, scalability, and seamless integration for enterprise security needs.
Mimecast Advanced Email Security offers spam filtering, phishing prevention, identity protection, compliance features, and Microsoft 365 integration for robust security.
The solution's mental health function can detect if someone needs help.
Head of Cybersecurity at SES Water
It's given us a lot more visibility into our computer assets that may be infected with viruses and also shows us people who have unusually large uploads or might be engaging in high-risk activities, such as searches or going to sites not categorized by their web crawler.
Educational Technology Coordinator at a performing arts with 201-500 employees
iboss was the best solution for us because, no matter what domain you were in, everything is under a single pane of glass, which is exactly what we wanted.
Managing Director
When I integrate these three products, it efficiently prevents malware, showing which endpoint is affected and providing a comprehensive view of the endpoint connections.
Security Solution Architect at a tech services company with 501-1,000 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

iboss
Sponsored
Ranking in Secure Web Gateways (SWG)
6th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
22
Ranking in other categories
Internet Security (3rd), Web Content Filtering (1st), Cloud Access Security Brokers (CASB) (6th), ZTNA as a Service (7th), Secure Access Service Edge (SASE) (7th)
Cisco Web Security Appliance
Ranking in Secure Web Gateways (SWG)
21st
Average Rating
7.8
Reviews Sentiment
6.7
Number of Reviews
31
Ranking in other categories
No ranking in other categories
Mimecast Advanced Email Sec...
Ranking in Secure Web Gateways (SWG)
10th
Average Rating
8.0
Reviews Sentiment
5.9
Number of Reviews
44
Ranking in other categories
Email Archiving (2nd), Office 365 Protection (2nd), Secure Email Gateway (SEG) (3rd)
 

Mindshare comparison

As of July 2026, in the Secure Web Gateways (SWG) category, the mindshare of iboss is 3.5%, up from 2.0% compared to the previous year. The mindshare of Cisco Web Security Appliance is 1.9%, down from 2.3% compared to the previous year. The mindshare of Mimecast Advanced Email Security is 0.7%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Secure Web Gateways (SWG) Mindshare Distribution
ProductMindshare (%)
iboss3.5%
Mimecast Advanced Email Security0.7%
Cisco Web Security Appliance1.9%
Other93.9%
Secure Web Gateways (SWG)
 

Featured Reviews

Ashok Ananthula - PeerSpot reviewer
Senior Consultant Proxy Engineering at a financial services firm with 10,001+ employees
Cloud gateway has strengthened remote web security and now needs better Mac and ISP support
The problem our organization had is that iboss failed for the Mac devices. It is not able to give a successful agent for the Mac agents. That is where in 2025, we had to migrate to the Palo Alto-based platform. If your use case is for just Windows laptops,you can consider this platform as an option One issue is the data center resiliency part. In India especially, they are not tied up with the Tier 1 ISPs like Tata or Airtel; they were having Tier 2 ISPs and encountered many issues reaching few major sites that my organization depends on, and they were having problems that they could not fix quickly. They also lack a mechanism to route that traffic within their data center; rather, they ask customers to make a pac file change to route it to Singapore explicitly. It would be better if they route from their backend , i mean even if I send it to India DC, they should be able to route it internally to make that work; however, they fail to do that and ask the customer to route it in the pac file. Another suggestion is that in China, they do not have the proper setup; they used to have numerous problems with slowness and lack of premium circuits in China as well. That leads to multiple sites working slowly with latency-related issues. So the main issue is the ISP-related problems that need to be solved.
Vusa Ndlovu - PeerSpot reviewer
Security Solution Architect at a tech services company with 501-1,000 employees
Advanced protection features offer robust security while integration process presents challenges
With the WebAssign integration, it is not easy when I am integrating policies within the company, especially with NAND and wireless policies. The challenge arises when traffic is blocked from either wireless or wired connections. Although implementing it as a standalone is quicker, integrating BYOD with Cisco I and FTB can be tiring. Once it is done correctly, the functionality and reports become valuable, although the implementation part can still be challenging.
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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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Manufacturing Company
9%
Computer Software Company
8%
Construction Company
7%
Financial Services Firm
28%
Construction Company
9%
Manufacturing Company
8%
Computer Software Company
7%
Computer Software Company
11%
Financial Services Firm
9%
Construction Company
8%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise7
Large Enterprise9
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise7
Large Enterprise12
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise12
Large Enterprise18
 

Questions from the Community

What needs improvement with iboss?
The problem our organization had is that iboss failed for the Mac devices. It is not able to give a successful agent ...
What is your primary use case for iboss?
We used iBoss mainly for Internet Access by having an Agent on Windows laptops Primarily because when we try to use i...
What is your experience regarding pricing and costs for iboss?
I am not involved in pricing, but as per the information I have, during that time, the Blue Coat proxies we were usin...
What is your experience regarding pricing and costs for Cisco Web Security Appliance?
Comparing with other products, Cisco has more functionality, but pricing is a challenge. Cisco is not a product for s...
What needs improvement with Cisco Web Security Appliance?
With the WebAssign integration, it is not easy when I am integrating policies within the company, especially with NAN...
What is your primary use case for Cisco Web Security Appliance?
The user interface that I usually provide for the web app includes malware protection, URL filtering, data loss preve...
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 w...
 

Also Known As

iBoss Cloud Platform
Cisco WSA, Cisco Web Security
Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Email and Collaboration Threat Protection
 

Overview

 

Sample Customers

More than 4,000 global enterprises trust the iboss Cloud Platform to support their modern workforces, including a large number of Fortune 50 companies.
New South Wales Rural Fire Service, Caixa Seguradora
Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group
Find out what your peers are saying about Cisco Web Security Appliance vs. Mimecast Advanced Email Security and other solutions. Updated: June 2026.
902,988 professionals have used our research since 2012.