Mimecast Email Security - Great Security Great Value.
February 13, 2025
Mimecast Email Security - Great Security Great Value.

Score 8 out of 10
Vetted Review
Verified User
Overall Satisfaction with Mimecast Advanced Email Security
We use Mimecast Advanced Email Security to protect against phishing, malware, and other email-based threats. It helps us stop things like business email compromise, impersonation attacks, and malicious attachments before they reach employees' inboxes. The main business problems it addresses are reducing security risks from email threats, preventing data loss, and ensuring compliance with industry standards. It also helps cut down on the amount of junk and potentially dangerous emails that employees have to deal with, improving overall productivity. Our use case is broad; it covers inbound and outbound email security, URL protection, attachment sandboxing, and impersonation detection. Plus, it provides logging and reporting that we use for threat analysis and incident response.
Pros
- Impersonation Prevention.
- Attachment Blocking.
- Threat Response / Clawback.
Cons
- More granular role based access control.
- Better configuration backup.
- GUI Updates to reduce miss-clicks and administrative mistakes.
- Before Mimecast, we handled multiple phishing-related incidents per week, each requiring security team intervention. Since implementation, phishing-related incidents have dropped by over 60%, freeing up analysts for higher-value work and reducing potential breach costs.
- Since implementing impersonation protection, we’ve seen a 90%+ reduction in successful impersonation attacks. This prevents fraudulent transactions and reputational damage, protecting company assets.
- Mimecast prevents 98% of SPAM emails from reaching the user's inbox and clutting their email.
Yes, we successfully migrated from Minesweeper, an on-premises email gateway, to Mimecast Advanced Email Security several years ago. The migration process was straightforward, with minimal disruption to email flow. Moving to Mimecast provided several key benefits, including cloud-based scalability, improved threat intelligence, and easier policy management compared to the legacy on-prem solution. The transition involved configuring policies, rerouting MX records, and testing security rules, all of which were well-documented and supported by Mimecast’s onboarding resources. One of the biggest advantages was eliminating the need for on-prem hardware maintenance, reducing operational overhead. The cloud-native approach also improved email security posture by enabling real-time updates and faster response to emerging threats, which wasn’t as efficient with our previous system.
Switching to Mimecast Advanced Email Security had a significant impact on our email security and operational efficiency. Compared to our previous on-prem Mimesweeper solution, Mimecast provided better scalability, automation, and threat intelligence that weren’t possible before. The shift to a cloud-based platform eliminated the need for hardware maintenance, ensuring seamless updates and improved uptime. Email continuity also improved, preventing disruptions during outages. Additionally, Mimecast’s real-time phishing, impersonation, and malware detection significantly reduced successful email threats. The centralized management console streamlined policy enforcement and reporting, making administration more efficient. Integration with our SOC, SIEM, and firewall tools enhanced threat intelligence sharing and incident response.
Proofpoint ATP offered strong threat detection and forensics, but it was more complex to manage and significantly more expensive. Microsoft 365 Defender had solid native integration with M365, but its filtering and impersonation protection weren’t as strong out of the box, requiring additional tuning. Abnormal Security excelled in AI-driven behavioral analysis, but it lacked some of the email continuity and DLP features we needed. Mimecast stood out for its robust phishing protection, easy policy management, and seamless integration with our SOC and firewall tools while keeping costs manageable.
Do you think Mimecast Advanced Email Security delivers good value for the price?
Yes
Are you happy with Mimecast Advanced Email Security's feature set?
Yes
Did Mimecast Advanced Email Security live up to sales and marketing promises?
Yes
Did implementation of Mimecast Advanced Email Security go as expected?
Yes
Would you buy Mimecast Advanced Email Security again?
Yes

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