--- title: Mimecast Advanced Email Security Reviews meta_title: 'Mimecast Advanced Email Security Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 349 reviews by the users' company size, role or industry to find out how Mimecast Advanced Email Security works for a business like yours. aggregate_rating: rating_value: 4.4 review_count: 349 scale: '5' date_modified: '2026-08-13' parent_category: name: Email Security url: https://www.g2.com/categories/email-security --- # Mimecast Advanced Email Security Reviews **Vendor:** Mimecast **Category:** [Cloud Email Security Solutions](https://www.g2.com/categories/cloud-email-security) **Average Rating:** 4.4/5.0 **Total Reviews:** 349 ## About 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 Pros & Cons **What users like:** - Users value the **effective spam blocking and malicious email detection** features of Mimecast Advanced Email Security. (40 reviews) - Users appreciate the **ease of use** of Mimecast Advanced Email Security, facilitating effective spam blocking and efficient email management. (36 reviews) - Users value the **robust security features** of Mimecast Advanced Email Security, effectively blocking harmful emails and preventing spoofing. (28 reviews) - Users value the **effective email protection features** of Mimecast Advanced Email Security, ensuring reliable and user-friendly operation. (22 reviews) - Users value the **effective spam blocking** feature of Mimecast, ensuring a secure email experience with minimal threats. (22 reviews) - Users appreciate the **excellent customer support** from Mimecast, highlighting insightful responses and effective assistance from the team. (20 reviews) - Phishing Protection (20 reviews) - Protection (16 reviews) - Spam Filtering (16 reviews) - Integrations (15 reviews) **What users dislike:** - Users find Mimecast Advanced Email Security's **complexity** overwhelming, requiring significant effort to navigate and configure effectively. (17 reviews) - Users experience **email filtering issues** , including difficulties finding emails and excessive holding of legitimate messages. (16 reviews) - Users face **email configuration challenges** with Mimecast Advanced Email Security, requiring time and effort for effective management. (16 reviews) - Users experience **false positives** with Mimecast, making it challenging to locate legitimate emails and requiring manual management. (13 reviews) - Users report **ineffective detection** of legitimate emails, leading to disruptions and time-consuming manual interventions. (13 reviews) - Users struggle with **configuration difficulties** , as the setup is complex and requires significant fine-tuning and adjustment. (12 reviews) - Poor Customer Support (12 reviews) - Poor Detection (12 reviews) - Users find the **administration UI challenging** , making navigation and configuration time-consuming and complex for beginners. (12 reviews) - Difficult Setup (11 reviews) ## Mimecast Advanced Email Security Discussions - [Has anyone implemented ingesting the Audit logs from Mimecast into Graylog?](https://www.g2.com/discussions/has-anyone-implemented-ingesting-the-audit-logs-from-mimecast-into-graylog) - 3 comments, 1 upvote - [What is Mimecast Email Security with Targeted Threat Protection used for?](https://www.g2.com/discussions/what-is-mimecast-email-security-with-targeted-threat-protection-used-for) - 2 comments - [View Mimecast Advanced Email Security pricing details and edition comparison](https://www.g2.com/products/mimecast-advanced-email-security/reviews?page=29§ion=pricing&secure%5Bexpires_at%5D=2026-08-13+02%3A53%3A13+-0500&secure%5Bsession_id%5D=335b2cea-bbd7-488e-88b2-7d78b74bbc0e&secure%5Btoken%5D=781bf0451f2b9a9091f8ff2d333dfec9012bddc40274b1d8c89d63178f0128eb&format=llm_user) ## Mimecast Advanced Email Security Integrations - [Microsoft 365](https://www.g2.com/products/microsoft365/reviews) - [Microsoft Outlook](https://www.g2.com/products/microsoft-outlook/reviews) - [Microsoft Teams](https://www.g2.com/products/microsoft-teams/reviews) ## Mimecast Advanced Email Security Features **Additional Functionality** - Phishing Protection - Threat Response - Domain Check - Security Auditing - AI/Machine Learning - Third-Party Integrations - AI Copilot - Reporting/Analytics - Anomaly/Malware Detection - SURLB/URIBL Filtering - Activity Dashboard - Scheduled/Automated Reports - For MSPs - Whitelisting/Blacklisting - Fraud Detection - Spam Blocker - Spam Quarantine - API - Data Leak Prevention - Encryption - Audit Trail - Real-Time Monitoring - Spam Analysis - Policy Management - Alerts/Escalation - Email Management - Vulnerability Scanning - Generative AI - Threat Protection - Email Attachment Protection - Email Filtering - Two-Factor Authentication **Administration** - Intelligence Reporting - Email Integration Suppor - Access Management - Data Loss Prevention **Administration** - Compliance - Intelligence Reporting - Email Clients - Role-Based Rules **Functionality** - Anti-Spam - Anti-Malware - Anti-Phishing - SURLB/URIBL Filtering - Quarantine - Outbound Email Monitoring - Advanced Threat Intelligence/Protection - Archiving - Reporting - Email Attachment Protection - Phishing Protection - Single Sign On - Email Monitoring - Real-Time Monitoring **Maintenance** - Auditing - Allow and block lists - Compliance - Archiving **Detection** - Data Exfiltration Detection - Activity Monitoring - Real-Time Detection **Agentic AI - Secure Email Gateway** - Proactive Assistance **Additional Functionality** - Activity Dashboard - Audit Trail - Allow/Block List - Generative AI - Vulnerability Scanning - Active Directory Integration - Threat Response - Search - Intrusion Detection System - Compliance Management - Spam Blocker - Encryption - Data Verification - Audit Management - Alerts/Escalation - Policy Management - Customizable Reports - Archiving & Retention - Data Synchronization - Activity Tracking - Microsoft Outlook Integration - SSL Security - Secure Login - Third-Party Integrations - Spam Detection - Real-Time Notifications - Scheduled/Automated Reports - Email Tracking - Fraud Detection - Event Logs - Data Retention Management - Backup and Recovery - Threat Intelligence - Whitelisting/Blacklisting - Data Import/Export - Two-Factor Authentication - Reporting & Statistics - Anti Virus - Data Loss Prevention - Risk Alerts - Access Controls/Permissions - Password Management - AI Copilot - Authentication **Security** - Anti-Malware/Anti-Spam - Encryption - Quarantine - Advanced Threat Protection (ATP) - Anti-Phishing - Account takeover prevention **Protection** - Targeted Attack Prevention - Policy Enforcement - Spam Filtering **Agentic AI - Intelligent Email Protection** - Autonomous Task Execution - Adaptive Learning ## Top Mimecast Advanced Email Security Alternatives - [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews) - 4.6/5.0 (589 reviews) - [SpamTitan Email Security](https://www.g2.com/products/spamtitan-email-security/reviews) - 4.5/5.0 (176 reviews) - [Cloudflare One (SASE)](https://www.g2.com/products/cloudflare-one-sase/reviews) - 4.6/5.0 (103 reviews)