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Mimecast Advanced Email Security pros and cons

Vendor: Mimecast
4.0 out of 5
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Pros & Cons summary

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Prominent pros & cons

PROS

Mimecast Advanced Email Security provides effective spam, phishing, and threat filtering, making it a reliable security tool for organizations facing email-based threats.
Its straightforward initial setup and scalability ensure ease of adoption for businesses of various sizes.
The integration with Microsoft 365 allows seamless access using Microsoft credentials, enhancing user convenience and operational efficiency.
The features like DMARC Analyzer, content filtering, and secure messaging positively impact data security and reduce spam emails significantly.
The availability of features such as Mailbox Continuity, Journaling, and Email Archiving improves email management and security for uninterrupted business operations.

CONS

Mimecast Advanced Email Security's customer support often redirects users to knowledge-based articles instead of providing direct assistance, and the response time is notably slow.
The move to a paid training subscription model and the lack of free webinars is a concern for some users.
Pricing is considered high, and a reduction would be beneficial to align with similar solutions.
False positive emails pose a significant challenge, and improvements in detection capabilities are necessary.
Mimecast Advanced Email Security experiences recurring service disruptions, particularly in the UK, affecting email reliability and causing delays.
 

Mimecast Advanced Email Security Pros review quotes

Avinash Mishra - PeerSpot reviewer
Manager - EUC at Finthrive
Jun 23, 2026
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.
Ravishankar KumarPatel - PeerSpot reviewer
Solution Architect Cybersecurity at Microland Limited
Jun 10, 2026
Mimecast Advanced Email Security is a good product and is very stable.
Prajwal Chougale - PeerSpot reviewer
SOC L2 Analyst at a tech services company with 51-200 employees
Sep 7, 2026
Overall, I consider Mimecast Advanced Email Security to be a reliable and effective security solution, with the highest value for organizations that face significant phishing and email-based threats and are willing to invest time in proper configuration and monitoring.
Learn what your peers think about Mimecast Advanced Email Security. Get advice and tips from experienced pros sharing their opinions. Updated: August 2026.
913,076 professionals have used our research since 2012.
Siva_Prasad - PeerSpot reviewer
Senior Consultant at a tech vendor with 10,001+ employees
Sep 3, 2026
Mimecast Advanced Email Security has state-of-the-art features and is very sophisticated compared to other partners.
DE
Information Security Sepcialist at Transnet
Sep 10, 2026
From the tools I have worked with, it is actually the best, and I am happy with it.
reviewer2861040 - PeerSpot reviewer
Senior Managing Consultant at a tech vendor with 10,001+ employees
Jun 25, 2026
Mimecast Advanced Email Security proves to be a useful tool, allowing me as security personnel to work in a more peaceful manner.
reviewer2500197 - PeerSpot reviewer
IT Manager at a logistics company with 201-500 employees
Jan 22, 2026
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.
HS
Email Security Engineer at Logic Infosecurity
Sep 8, 2025
Based on overall experience, Mimecast Email Security is the best solution for traditional gateways.
RP
Senior Tech. Lead at WE
Nov 22, 2024
In terms of efficacy, Proofpoint is better than Mimecast, though it's a little difficult to manage.
MP
Senior Security Engineer at ManpowerGroup
Jun 26, 2025
The reviewer gave Mimecast Email Security a rating of 10 out of 10.
 

Mimecast Advanced Email Security Cons review quotes

Avinash Mishra - PeerSpot reviewer
Manager - EUC at Finthrive
Jun 23, 2026
Improvements for Mimecast Advanced Email Security include enhancing the user interface and accessibility, particularly regarding admin capabilities to add or modify user accounts.
Ravishankar KumarPatel - PeerSpot reviewer
Solution Architect Cybersecurity at Microland Limited
Jun 10, 2026
Mimecast Advanced Email Security needs to improve in this area because they are only focusing on a particular set of problems which is on email and human risk, whereas companies that need a slightly bigger picture will look elsewhere.
Prajwal Chougale - PeerSpot reviewer
SOC L2 Analyst at a tech services company with 51-200 employees
Sep 7, 2026
For improvement, I would say some of the catalogs, while navigating, were a little tricky.
Learn what your peers think about Mimecast Advanced Email Security. Get advice and tips from experienced pros sharing their opinions. Updated: August 2026.
913,076 professionals have used our research since 2012.
Siva_Prasad - PeerSpot reviewer
Senior Consultant at a tech vendor with 10,001+ employees
Sep 3, 2026
As an area of improvement for Mimecast Advanced Email Security, I would like to see enhancements in capabilities to eliminate false positives even before emails hit the mailbox, leveraging AI functionalities.
DE
Information Security Sepcialist at Transnet
Sep 10, 2026
What can be improved with Mimecast Advanced Email Security is around the Brand Exploit Protect tool; the turnaround times to take down sites or block them in the meantime are a bit slow, and the detection of brand exploitation out in the world could be better.
reviewer2861040 - PeerSpot reviewer
Senior Managing Consultant at a tech vendor with 10,001+ employees
Jun 25, 2026
It analyzes patterns but sometimes overlooks suspicious indicators.
reviewer2500197 - PeerSpot reviewer
IT Manager at a logistics company with 201-500 employees
Jan 22, 2026
As for areas for improvement within Mimecast Web Security, I believe there is quite a lot that can be improved.
HS
Email Security Engineer at Logic Infosecurity
Sep 8, 2025
The system is not user-friendly because you have to create policies that are mapped in a dictionary.
RP
Senior Tech. Lead at WE
Nov 22, 2024
Mimecast needs to reduce the number of false positive emails; a big pain point for us.
MP
Senior Security Engineer at ManpowerGroup
Jun 26, 2025
We discussed the phishing aspect, the DNS system, and the key rotation.