Cloudflare One vs Mimecast Advanced Email Security comparison

Cloudflare and Mimecast are both solutions in the Secure Web Gateways (SWG) category. Cloudflare is ranked #13 with an average rating of 8.5, while Mimecast is ranked #10 with an average rating of 8.5. Cloudflare holds a 4.7% mindshare in WSG, compared to Mimecast’s 0.7% mindshare. Additionally, 100% of Cloudflare users are willing to recommend the solution, compared to 90% of Mimecast users who would recommend it.

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Jun 2, 2026

Mimecast Advanced Email Security and Cloudflare One are both leaders in the security solutions sector. Currently, Mimecast seems to gain an edge in customer support and pricing, while Cloudflare One is valued for its extensive feature set.

Features: Mimecast is recognized for its email security attributes, providing sandboxing and adept anti-spam features, integration with Microsoft 365, as well as offering custom configurations. Cloudflare One is known for its effective DDoS protection and simpler setup, with robust firewall features and rate-limiting that are appealing to organizations of all sizes.

Room for Improvement: Mimecast users cite difficulties with pricing, inefficient reporting for malicious emails, and an admin console that is not user-friendly. There is also potential for enhancement in identity protection and support services. Cloudflare could benefit from better integration with legacy systems and more comprehensive documentation, along with improved support responsiveness.

Ease of Deployment and Customer Service: Mimecast offers varied deployment options, including public and private clouds and on-premises, which provides flexibility. However, users report some challenges with support responsiveness. Cloudflare, being cloud-based, is praised for its easy deployment; however, similar to Mimecast, there are some concerns about support responsiveness and the clarity of communication.

Pricing and ROI: Mimecast is often viewed as a pricier option, impacting its affordability. Nonetheless, it offers a noticeable ROI through comprehensive security features. In contrast, Cloudflare One is considered more affordable with competitive pricing. Although its pricing transparency could improve, Cloudflare is noted for providing a favorable ROI owing to its effective and cost-efficient security offerings.

To learn more, read our detailed Cloudflare One vs. Mimecast Advanced Email Security Report (Updated: June 2026).

Buyer's Guide

Cloudflare One vs. Mimecast Advanced Email Security

June 2026

Download the complete report

Helped 904,836 peers since 2012

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

iboss

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 Cloudflare One is 4.7%, up from 3.0% 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
Product	Mindshare (%)
iboss	3.5%
Mimecast Advanced Email Security	0.7%
Cloudflare One	4.7%
Other	91.1%

Secure Web Gateways (SWG)

Featured Reviews

Ashok Ananthula

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.

Read full review

Cobe Van Coller

Network Architect at IP Dimension

Cloud security has improved remote access and has reduced costs for smaller client sites

I have used Cloudflare One's Identity-Aware Proxy, and it is quite straightforward from what I have seen so far. The app registration on the Azure side integrates fully into Cloudflare, and I am very satisfied with that part because it is easy to set up. The integration of Cloudflare One's Secure Web Gateway and Zero Trust Network Access works without any issues. That part is pretty automatic, and if you complete the rest of the setup, it comes together by itself with no issues from my side. What makes it nice is that we can actually start replacing on-site firewalls at this stage for the smaller clients because it does not matter if they go to a coffee shop or work from home; they are still secured by the same connection. The hops get shorter and you get better latency. We have done testing to see if it is better. One thing that we did notice with our proof of concept with our current client is that they have people connecting from the UK. When they used their previous VPN solution, uploading CAD drawings and other files to the server took a long time. They mentioned that it is much quicker on Cloudflare One's solution. I definitely believe that is part of the improved performance, and I am satisfied with that as well. What is nice about Cloudflare One is that it makes the setup easier and also easier to train technicians to maintain it. Compared to legacy systems, we do not need to get fancy firewalls in place that are costly. That is definitely also a cost-saver with Cloudflare One.

Read full review

Avinash Mishra

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.

Read full review

Quotes from Members

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

Pros

"Content filtering is the most useful feature of iboss."

"iboss is easy to use despite its complexity. Multiple engineers manage it, but it's significantly more straightforward to administer than traditional VPNs and web proxies."

"Technical support is pretty sharp and very responsive."

"The iboss system is highly reliable. The false positive rates are small compared to some other systems we've experienced through other partner agencies who use competing solutions."

"First of all, the security policies are essential. I do not have to rely solely on Active Directory for our users."

"Its initial setup was straightforward."

"As I mentioned, the return on investment is significant, as it saved our office locations' bandwidth because when you are working remotely at home, your internet traffic routes directly to iboss and will not go to your office building, saving bandwidth bottlenecks and ensuring that issues with our building internet circuits will not impact your internet connectivity because you are directly going to the iboss data center."

"It was a very easy product to install. It can be deployed very fast."

More iboss pros

"Cloudflare One has assisted in securing my remote workforce through a SASE solution with Cloudflare One and the Workers part, although I am not currently using the Workers component."

"It's the endpoint exposition. We don't need to expose our VPN server to the internet and need a zero-test solution. I can apply some conditional access to the endpoint that's connecting to our network to check their security policies or the security condition of their workstation. Once the workstation is trying to connect to my internal network, then I would like to check the discrete condition of these endpoints that are trying to access my internal network. We created some conditional access. We have CrowdStrike, to check if the CrowdStrike is installed, to check if it's updated, and to check for Windows updates. We created some conditional policies to check it."

"The tool also offers good scalability, and the dashboard, along with real-time analytics, is very good."

"Cloudflare is simple to use."

"The best feature is rate limiting. If I'm expecting 500 visits per hour, Cloudflare will limit the requests if I suddenly get 50,000."

"I'm very satisfied with the environment and the dashboard."

"Enables me to work from two locations."

"Cloudflare DDoS is better than its competitors for its security, deployment, and scalability."

More Cloudflare One pros

"The solution is scalable."

"I recommend Mimecast based on customer requirements and budget."

"The solution's performance is good."

"The Large File Send feature comes in handy when you have to send fairly large attachments."

"The solution is pretty straightforward to use and easy to set up."

"If I had to mention one or two things that bring the biggest benefit, I would say the security of the emails and dealing with everything."

"It's good, it keeps the spam out."

"The positive impact of Mimecast Advanced Email Security on our organization is evident in how it has drastically reduced spam emails and improved our data security."

More Mimecast Advanced Email Security pros

Cons

"File integrity monitoring would be very advantageous as an additional feature."

"If they could implement an extra security layer preventing access to iboss from the open internet, it would be great."

"Iboss is growing so fast that it is often hard for them to keep up with the challenges."

"Sometimes when you call in support, you get someone who is just following a sheet. It feels like a runaround. You feel that you are running into that support wall."

"I have heard they are doing DDoS filtering, but I am not certain if they are implementing it correctly."

"The area I would like to see improvement in is the ability with in the reporter to navigate directly to the content the user is traversing. It is kind of there, but it's not perfect. Quite frequently, I receive links that lead me to pages with error messages."

"It is stable, but due to growth, it can sometimes be less stable than wanted."

"Fold that in with the risk intelligence they're getting from all of the different subscriptions they are a part of. Now, these security companies subscribe to things like emerging threats, databases, etc. You can fold all this intelligence to decide what's happening on an endpoint. I would love to see them start moving into that space. That would compete directly with Microsoft. Maybe that's why they haven't. Having that ability native within the solution would be great. The other area in which I would love to see improvement is more detailed descriptions of why they block websites."

More iboss cons

"Operating and tuning the product is difficult."

"I would like them to include a VPN feature to provide a secure connection to the data center."

"From a logging perspective, it is still a bit difficult to see exactly what users are being blocked with the current views."

"The free plan has limitations. For example, I can only set up three rules, and the application firewall is unavailable."

"Automation could be improved where you can easily add a TLS and SSL certificate to an application or web app if the developer did not include it."

"The response time for support must be reduced."

"The initial onboarding was causing us some confusion."

"The software has automated alerts, but the automated alerts are not available in the mobile app."

More Cloudflare One cons

"Certainly, the primary area needing improvement is Mimecast's customer support. Our experience as Mimecast customers has been less than satisfactory. Even when raising a priority ticket, the response time is unacceptably long, often taking around five to six hours. This level of service is disappointing. Additionally, there have been recurring service disruptions in the UK region, leading to extended email delays due to various service issues. This year alone, we've encountered such problems on approximately four occasions."

"We have subscribed to an archival service, and yet, when we have to get our data out, we have to pay a fee to get our own data. They charge an extraction fee."

"The solution is expensive in comparison to similar solutions."

"Improvements for Mimecast Advanced Email Security include enhancing the user interface and accessibility, particularly regarding admin capabilities to add or modify user accounts."

"The feature that should be included is to remove the block on the encrypted files."

"The price of the solution is expensive. It can improve by reducing the price."

"I'd like to have better support from the product in the future."

"The product's interface could be improved to be more user-friendly."

More Mimecast Advanced Email Security cons

Pricing and Cost Advice

"The overall pricing for iboss is very competitive and transparent."

"It is expensive compared to one of its competitors."

"We have not priced the solution recently, but they were competitive with other vendors in the past."

"It is not expensive, and it is also not cheap. iboss is priced right in the sweet spot for the number of features it offers."

"It is probably in line with other solutions, but I do not deal with the financial side."

"We had the cost of purchasing a new appliance along with the implementation and licensing costs. However, 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."

"The pricing of the solution is cheap. The licensing cost is also very low. I rate the cost and pricing a three out of ten."

"The pricing is somewhere in the middle. I would rate the pricing a seven out of ten."

"The price tag is no longer $200,000, but rather $300,000 to $400,000. It's twice."

"The solution is not that expensive."

"The solution's pricing lacks transparency."

"The prices are slightly expensive."

"My company has to make yearly payments towards the licensing costs attached to the solution. There are no hidden charges apart from the licensing costs of the solution."

"Cloudflare Zero Trust Platform's pricing is good."

"The solution is expensive."

"The customers can select the license packages as per their requirements."

"Two subscription options are currently offered: monthly and yearly. My suggestion is to opt for the yearly subscription as it can give some discount. The pricing isn't high as other cloud solutions are pricier than Microsoft's offerings."

"It's an expensive solution."

"Compared to the other solutions in the market, Mimecast Email Security with Targeted Threat Protection's pricing is fine."

"For what it is, the product is overpriced."

"The licensing costs are per-user for the product that you get with them."

"The product price is moderate. I rate the pricing a five out of ten."

More Mimecast Advanced Email Security pricing and cost advice

See which vendors are best for you

Use our free recommendation engine to learn which Secure Web Gateways (SWG) solutions are best for your needs.

See recommendations

904,836 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Financial Services Firm

11%

Manufacturing Company

10%

Computer Software Company

Construction Company

19%

Comms Service Provider

10%

Financial Services Firm

Manufacturing Company

Computer Software Company

11%

Financial Services Firm

Construction Company

Outsourcing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	7
Midsize Enterprise	7
Large Enterprise	9

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	1
Large Enterprise	12

By reviewers
Company Size	Count
Small Business	19
Midsize Enterprise	12
Large Enterprise	18

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 ...

See all answers

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...

See all answers

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...

See all answers

What is your experience regarding pricing and costs for Cloudflare Zero Trust Platform?

Pricing is competitive. Akamai is more expensive, in my view.

See all answers

What needs improvement with Cloudflare Zero Trust Platform?

In my opinion, Cloudflare One can be improved mainly through compatibility, as the integration should be much simpler...

See all answers

What is your primary use case for Cloudflare Zero Trust Platform?

Cloudflare One's primary use case for my organization is to protect servers and to provide remote access with the VPN...

See all answers

What is your experience regarding pricing and costs for Mimecast Email Security with Targeted Threat Protection?

Do you know anything about the pricing and cost of the Mimecast Email Security?

See all answers

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...

See all answers

What is your primary use case for Mimecast Email Security with Targeted Threat Protection?

I have been working with Mimecast Email Security.

See all answers

Comparisons

Prisma Access by Palo Alto Networks vs iboss

Compared 10% of the time

Netskope vs iboss

Compared 9% of the time

Fortinet FortiGate vs iboss

Compared 8% of the time

FortiSASE vs iboss

Compared 6% of the time

Cisco Secure Access vs iboss

Compared 3% of the time

More iboss Competitors

Cato SASE Cloud Platform vs Cloudflare One

Compared 4% of the time

Zscaler Zero Trust Exchange Platform vs Cloudflare One

Compared 3% of the time

Prisma Access by Palo Alto Networks vs Cloudflare One

Compared 3% of the time

Twingate vs Cloudflare One

Compared 3% of the time

Fortinet FortiGate vs Cloudflare One

Compared 3% of the time

More Cloudflare One Competitors

Check Point Email Security (formerly Harmony Email & Collaboration) vs Mimecast Advanced Email Security

Compared 16% of the time

Proofpoint Email Protection vs Mimecast Advanced Email Security

Compared 10% of the time

Microsoft Defender for Office 365 vs Mimecast Advanced Email Security

Compared 7% of the time

Barracuda Email Protection vs Mimecast Advanced Email Security

Compared 6% of the time

Microsoft Exchange Online Protection (EOP) vs Mimecast Advanced Email Security

Compared 2% of the time

More Mimecast Advanced Email Security Competitors

Product Reports

Buyer's Guide

iboss

July 2026

Download iboss product report

Buyer's Guide

Cloudflare One

July 2026

Download Cloudflare One product report

Buyer's Guide

Mimecast Advanced Email Security

June 2026

Download Mimecast Advanced Email Security product report

Also Known As

iBoss Cloud Platform

Cloudflare Area 1 Email Security, Cloudflare Bot Management, Cloudflare Gateway, Cloudflare Zero Trust Platform, Cloudflare DDoS, Cloudflare SASE & SSE Platform

Mimecast Email Security with Targeted Threat Protection, Mimecast Web Security, Mimecast Mailbox Continuity, Email and Collaboration Threat Protection

Overview

Iboss offers a comprehensive cloud-based security platform valued for its scalability and autonomous features, ensuring robust security with easy deployment and management capabilities.

Renowned for its robust security architecture, Iboss integrates seamlessly within diverse networks, delivering efficient granular filtering and advanced content categorization. Its single pane of glass console provides ease of management, allowing rapid scalability suitable for rapidly deploying environments. Operates in BYOD setups due to inline filtering without device installation. Integration with cloud-based applications enhances user control, and features like SASE, SSL inspection, and ChatGPT risk protection stand as highlights. Despite its strengths, users have pointed out areas for enhancement like direct navigation in reports, SSL decryption, and better cloud integration while having room to improve data loss prevention.

What are the most important features of Iboss?

Scalability: Supports rapid deployment across diverse networks.
SASE: A consolidated approach to secure access.
SSL Inspection: Ensures safe data transmission.
Granular Filtering: Detailed control over accessible content.
Single Pane Management: Unifies control through a centralized console.

What benefits should users consider in reviews?

Cost-effectiveness: Offers competitive pricing with robust features.
Autonomous Operation: Reduces management overhead.
Responsive Support: Provides assistance when needed.
Flexible Deployment: Available for both cloud and on-premises environments.

The usage of Iboss spans educational institutions, specifically K-12, to enforce internet policies, protect data, and support remote work environments. It provides web filtering and security frameworks to ensure safe browsing. Its platform-as-a-service model offers flexibility for both cloud-based and on-premises requirements, integrating seamlessly to deliver enhanced security features suitable for various deployment needs including zero trust, CASB, and network security for work-from-home setups.

iboss

Cloudflare One is a comprehensive platform for security, performance, and connectivity. It provides features like rate limiting, DDoS protection, and application access, tailored to enhance user experience while securing internet access and accelerating communications.

Designed to integrate security measures with ease of use and scalability, Cloudflare One offers a secure web gateway and zero trust network access. These features ensure seamless setup and operation, making connectivity reliable and protected. Users appreciate its integrated console, intuitive interface, and the ability to manage risk effectively. It offers straightforward deployment, improves latency, and boasts cost-effectiveness. While its onboarding process and documentation need enhancement, its value in content delivery and application shielding is notable. Despite challenges in integrating Cloudflare Access with existing VPNs and the need for better automation and support, it remains vital for DNS and infrastructure protection.

What features make Cloudflare One stand out?

Rate Limiting: Controls the traffic rate to prevent abuse.
DDoS Protection: Shields applications from distributed denial-of-service attacks.
Secure Web Gateway: Provides secure internet access with seamless operation.
Zero Trust Network Access: Ensures secure, application-based connectivity without relying on traditional VPNs.
Access for Connectivity: Facilitates access to internal applications securely.

What benefits should users look for in reviews?

Security: Robust measures for DNS and browsing protection.
Performance: Enhanced site accessibility and communication speed.
Cost-Effectiveness: Offers competitive pricing for its features.
Ease of Deployment: Straightforward and efficient setup process.

In industries like finance, retail, and technology, Cloudflare One is crucial for enabling secure remote access and protecting web applications against dynamic threats. It supports compliance access policies and enhances content delivery, playing a key role in safeguarding digital infrastructure.

Cloudflare

Mimecast Advanced Email Security offers advanced features like sandboxing, email archiving, and phishing protection. It's known for integration with Microsoft 365 and user-friendly admin management, making it a robust choice for secure communications.

Focused on safeguarding emails, Mimecast Advanced Email Security integrates seamlessly with Microsoft 365, providing features such as sandboxing, spam filtering, and email archiving. It delivers comprehensive protection against phishing, identity threats, and impersonation attempts. Administrators benefit from the ability to monitor external communications and customize configurations, enhancing email security. Users appreciate the intuitive admin console and responsive support team. Although it faces challenges in threat detection rates and administration complexity, its capabilities in email monitoring, spam filtering, and URL inspection remain valued by enterprises seeking reliable email security that supports compliance needs.

What key features should users explore?

Sandboxing: Analyzes attachments in a secure environment to detect threats.
Email Archiving: Provides secure long-term storage of emails for compliance.
Spam Filtering: Prevents unsolicited emails from clogging the inbox.
URL Inspection: Checks links in emails for malicious content.
Phishing Protection: Guards against deceptive tactics to protect sensitive data.

What benefits can impact ROI?

Regulatory Compliance: Facilitates adherence to standards such as HIPAA.
Integration: Enhances existing systems with seamless Microsoft 365 integration.
Support: Offers a responsive support team to resolve issues promptly.
Email Security: Improves threat prevention with effective spam and phishing protections.

Mimecast Advanced Email Security is implemented across industries to protect against email threats like phishing, spam, and malicious attachments. It serves as both a gateway and an archiving tool, supporting compliance in healthcare and finance by offering features like URL protection and data loss prevention. Enterprises leverage its capabilities to secure inbound and outbound communications effectively.

Mimecast

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.

23andMe

Azizi Developments, Affinity Credit Union, Aftercare, Al Abbar Group

Buyer's Guide

Cloudflare One vs. Mimecast Advanced Email Security

June 2026

Free Report: Cloudflare One vs. Mimecast Advanced Email Security

Find out what your peers are saying about Cloudflare One vs. Mimecast Advanced Email Security and other solutions. Updated: June 2026.

DOWNLOAD NOW

904,836 professionals have used our research since 2012.

See our Cloudflare One vs. Mimecast Advanced Email Security report.

See our list of best Secure Web Gateways (SWG) vendors.

We monitor all Secure Web Gateways (SWG) reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.