Mimecast Advanced Email Security Reviews & Product Details

My favorite thing about Mimecast Advanced Email Security is the relationship with our CSR, Brett Lenzi, who always jumps into support tickets, escalates them, and is a constant good-will advocate for us. I like how rules are easily configurable and the platform is always coming out with improvements. I appreciate the creation of custom rules to block new phishing patterns or suspicious domains and the ability to fine-tune filtering based on our specific environment, like by department. The intuitive rule building interface allows me to quickly make adjustments, and I find it valuable that we're continually working to reduce false positives via allow-lists and block-lists. Review collected by and hosted on G2.com.

We really need an API solution - we are missing out on connecting some services due to lack of API integration - MX records are really a legacy method. Limited automation capabilities - we can't programmatically pull email security metrics into our centralized security dashboards or SIEM platforms. Manual reporting processes - security incident data has to be manually exported rather than automatically fed into IR workflows. Disconnected threat intel - can't easily correlate Mimecast threat data with other security tools to get a full picture of attack campaigns. User provisioning inefficiencies - onboarding new employees or managing departing staff, we have to manually update policies rather than integrating with our identity management system via M365. The mx record approach limited my ability to create the interconnected security ecosystem that modern organizations need. API connectivity would broaden the efficacy of the overall impact of email security within the security stack. Review collected by and hosted on G2.com.

Mimecast Advanced Email Security stands out for its strong protection against phishing, malware and impersonation attacks while remaining easy to manage. The interface is intuitive, making daily monitoring, policy updates and threat investigation straightforward even for small security teams.

Implementation is smooth and well-documented, with minimal disruption to existing mail flow. Integration with M465 is seamless and features like URL protection, attachment sandboxing and impersonation protection work effectively out of box. Review collected by and hosted on G2.com.

Mimecast Advanced Email Security is a powerful platform, the interface can feel complex at times, especially for new administrators. Some settings are deeply nested, which can make advanced policy tuning and troubleshooting less intuitive. Review collected by and hosted on G2.com.

It offers a wide range of email security policies with a strong level of customization. We’re able to protect our environment against many different types of threats, including dangerous malware, phishing attacks, impersonation attacks, and more. Review collected by and hosted on G2.com.

The interface isn’t very intuitive, and it can be a bit difficult to navigate through all of the policies and find exactly what I need. Customer support has been hit or miss as well. Sometimes I get good support, but other times it’s been difficult and lengthy to get my issues resolved. Review collected by and hosted on G2.com.

The features that stand out most are its Targeted Threat Protection, and the ease of use it provides. The TTP suite is excellent at neutralizing most attacks, including Impersonation Protection which accurately flags and blocks Business Email Compromise and CEO fraud attempts that traditional filters miss. Review collected by and hosted on G2.com.

At times, the Administration user interface tends to be slow and unresponsive, which can be frustrating. Review collected by and hosted on G2.com.

it easy to identify unknown email and block spam and avoid breach Review collected by and hosted on G2.com.

sometimes it block genuine user and take time Review collected by and hosted on G2.com.

Consistent, low‑noise protection from phishing and impersonation—smart URL rewriting and attachment sandboxing with clear reporting and simple policy control. Review collected by and hosted on G2.com.

URL rewriting can break links, the admin UI/reporting feel clunky with limited customization, and quarantine workflows sometimes delay legitimate mail. Review collected by and hosted on G2.com.

This platform does help with email protection from phishing emails, and it's a great tool in flagging spam emails and blocking it.

The ability for administrators to review a suspicious email before allowing it to be delivered to the users is such a great feature Review collected by and hosted on G2.com.

The URL protection is too aggressive. Sometimes its a legit URL, but the system blocks it.

Every once in a while the users are prompted to enroll devcie when they have already did that Review collected by and hosted on G2.com.

AI-Powered, Multi-Layer Detection

Strong Phishing / Impersonation Protection

Excellent Spam & Virus Defense

Deployment Flexibility

Integrated Platform Review collected by and hosted on G2.com.

Steep Learning Curve / Complexity

Aggressive Out-of-the-Box Settings / False Positives Review collected by and hosted on G2.com.

Its provide a best securtiy feature to handel internal and external emails. Review collected by and hosted on G2.com.

I dont think is there any think which I dislike about this tool because its always help us to incerase security featurs. Review collected by and hosted on G2.com.

Included email signatures in their offering for free as well as the tabbed interface made switching between consoles very easy! Review collected by and hosted on G2.com.

The product was 'ok' but not the best at catching everything. The real reason for the decline was in support. Getting customer service on the phone during outages was horrible and took entirely too long in a SEV-A scenario. Review collected by and hosted on G2.com.