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  3. Mimecast Advanced Email Security
Logo of Mimecast Advanced Email Security

Mimecast Advanced Email Security

byMimecast
in Email Security
4.5

Overview

Product Information on Mimecast Advanced Email Security

Updated 10th March 2026

What is Mimecast Advanced Email Security?

Email Security, Cloud Integrated (CI) protects organizations against all forms of email-based attacks, from phishing and credential theft to ransomware and zero-day threats. This solution deploys behind M365 to collect emails after they have passed through Microsoft security, reinspect them, and take action as needed. With a setup time of just four minutes and out-of-the-box settings designed to optimize security immediately, Email Security CI delivers best-in-class efficacy in the simplest way possible. Customers get the full power of Mimecast’s AI-powered detection and threat intelligence in a solution built for the reality of navigating today’s hostile threat landscape with limited time and resources. Email Security CI also offers a fully integrated Awareness Training solution to help organizations easily and effectively reduce the risk of human error.

Mimecast Advanced Email Security Pricing

Mimecast Advanced Email Security software uses a subscription-based pricing model structured around the number of users, with various tiers providing different security features. The software’s cost varies depending on the selected feature set and organization size, and typically requires contact for specific pricing details tailored to business needs.

Overall experience with Mimecast Advanced Email Security

IT Associate
Gov't/PS/ED <5,000 Employees, Education
FAVORABLE

“Threat remediation stands out, but admin organization feels unintuitive”

5.0
Jun 10, 2026
This text serves as a placeholder and does not reflect the user’s review responses or opinions. This text serves as a placeholder and does not reflect the user’s review responses or opinions. This text serves as a placeholder and does not reflect the user’s review responses or opinions.
IT Associate
Gov't/PS/ED 5,000 - 50,000 Employees, Education
CRITICAL

“Helpful onboarding and support, but limited against modern threats. Platform feels dated”

3.0
Mar 12, 2026
This text serves as a placeholder and does not reflect the user’s review responses or opinions. This text serves as a placeholder and does not reflect the user’s review responses or opinions. This text serves as a placeholder and does not reflect the user’s review responses or opinions.

About Company

Company Description

Updated 25th July 2024

Since 2003, Mimecast has stopped bad things from happening to good organizations by enabling them to work protected. We empower over 40,000 customers to mitigate risk and manage complexities across a threat landscape driven by malicious cyberattacks, human error, and technology fallibility. Our advanced solutions provide proactive threat detection, brand protection, awareness training, and data retention capabilities evolving workplaces need today. Mimecast transforms email and collaboration security into the eyes and ears of organizations worldwide.

Company Details

Updated 26th February 2025
Company type
Private
Year Founded
2003
Head office location
Broadgate, United Kingdom
Number of employees
1001 - 5000
Website
https://www.mimecast.com/

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Key Insights

A Snapshot of What Matters - Based on Validated User Reviews

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Peer Discussions

Mimecast Advanced Email Security Reviews and Ratings

4.5

(711 Ratings)

Rating Distribution

5 Star
54%
4 Star
39%
3 Star
7%
2 Star
1%
1 Star
0%
Why ratings and reviews count differ?
  • IT Associate
    Gov't/PS/Ed
    Education
    Review Source

    Threat remediation stands out, but admin organization feels unintuitive

    5.0
    Jun 10, 2026
    Mimecast goes beyond basic email security and actively adapts to threats as they come. Basic tools that allow admins to actively remediate threats are paramount to security and I have seen none that are simpler to use than what Mimecast offers. Most of what i have to say is glowingly positive but one criticism would be the organization of some things on the admin side is unintuitive but that learning curve is overcome quickly.
  • IT Associate
    Gov't/PS/Ed
    Education
    Review Source

    Threat remediation stands out, but admin organization feels unintuitive

    5.0
    Jun 10, 2026
    Mimecast goes beyond basic email security and actively adapts to threats as they come. Basic tools that allow admins to actively remediate threats are paramount to security and I have seen none that are simpler to use than what Mimecast offers. Most of what i have to say is glowingly positive but one criticism would be the organization of some things on the admin side is unintuitive but that learning curve is overcome quickly.
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Recommended Gartner Insights

  • Critical Capabilities for Email Security
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User Sentiment About Mimecast Advanced Email Security
Reviewer Insights for: Mimecast Advanced Email Security
Deciding Factors: Mimecast Advanced Email Security Vs. Market Average
Performance of Mimecast Advanced Email Security Across Market Features

Mimecast Advanced Email Security Likes & Dislikes

Like

1. Threat remediation - this is a life saver that allows you to remove widespread threats from users inboxes instantly 2. Custom Policies - the policy customization is so modular you can really get into very granular detail 3. Held queues - This is great for filtering potential spam but still giving end user agency if they do decide they want to see those messages

Like

1. Threat remediation - this is a life saver that allows you to remove widespread threats from users inboxes instantly 2. Custom Policies - the policy customization is so modular you can really get into very granular detail 3. Held queues - This is great for filtering potential spam but still giving end user agency if they do decide they want to see those messages

Like

1. Threat remediation - this is a life saver that allows you to remove widespread threats from users inboxes instantly 2. Custom Policies - the policy customization is so modular you can really get into very granular detail 3. Held queues - This is great for filtering potential spam but still giving end user agency if they do decide they want to see those messages

Dislike

The platform does not seem to have kept pace with newer threats, especially AI-driven attacks. The gateway approach was effective in the past, but it now feels less capable on its own. It can also feel like customers are expected to purchase additional products or move to other offerings to address gaps in protection.

Dislike

The platform does not seem to have kept pace with newer threats, especially AI-driven attacks. The gateway approach was effective in the past, but it now feels less capable on its own. It can also feel like customers are expected to purchase additional products or move to other offerings to address gaps in protection.

Dislike

The platform does not seem to have kept pace with newer threats, especially AI-driven attacks. The gateway approach was effective in the past, but it now feels less capable on its own. It can also feel like customers are expected to purchase additional products or move to other offerings to address gaps in protection.