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Mimecast Advanced Email Security pros and cons

Vendor: Mimecast
4.0 out of 5
Badge Leader

Pros & Cons summary

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Prominent pros & cons

PROS

Mimecast Advanced Email Security provides excellent spam and phishing protection, ensuring business-critical emails are well-protected.
The initial setup process is straightforward, and the security features offered are highly effective.
Mimecast's support services are commendable, offering stability and reliability with no bugs or glitches.
The scalability of Mimecast allows it to cater to businesses of all sizes, including those with specialized requirements.
Users benefit from valuable features such as spam filtering, DMARC Analyzer, content filtering, and secure messaging.

CONS

Support needs significant improvement, with slow response times and reliance on knowledge-based articles rather than direct communication.
Transitioning to a paid training subscription model from free webinars has been unpopular among users.
Mimecast requires increased flexibility in filtering and reducing false positives, as it blocks many legitimate emails.
The cost is considered high compared to competitors in various markets, including India, and pricing improvements are suggested.
Mimecast's outbound mail servers face frequent blocklisting issues, negatively impacting business reputation and email deliverability.
 

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.
HS
Email Security Engineer at Logic Infosecurity
Sep 8, 2025
Based on overall experience, Mimecast Email Security is the best solution for traditional gateways.
Learn what your peers think about Mimecast Advanced Email Security. Get advice and tips from experienced pros sharing their opinions. Updated: July 2026.
909,647 professionals have used our research since 2012.
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.
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.
KishoreSugumar - PeerSpot reviewer
Co-Founder & VP-Sales at QuantumShield Technologies LLP
Dec 19, 2025
I have been satisfied with Mimecast Email Security as a good solution.
Frank Rawson - PeerSpot reviewer
Managing Director at Conekt Business Group
May 26, 2023
We like Mimecast's spam filtering. The email signature feature is also a big plus for our users.
reviewer1619394 - PeerSpot reviewer
Group CIO at a construction company with 10,001+ employees
Nov 30, 2023
The product's most valuable features are impersonation protection and phishing countermeasures.
 

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.
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.
Learn what your peers think about Mimecast Advanced Email Security. Get advice and tips from experienced pros sharing their opinions. Updated: July 2026.
909,647 professionals have used our research since 2012.
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.
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.
KishoreSugumar - PeerSpot reviewer
Co-Founder & VP-Sales at QuantumShield Technologies LLP
Dec 19, 2025
Mimecast Email Security is somewhat expensive compared to the competition in the Indian market, and the local presence is lacking as they do not have a local representative currently.
Frank Rawson - PeerSpot reviewer
Managing Director at Conekt Business Group
May 26, 2023
Lately, Mimecast's outbound mail servers have been regularly blocklisted by spam filters. That didn't happen a few years back, but it seems to be a more frequent problem these days. When a server is blocklisted, it means all of my outgoing mail ends up in the recipient's junk mail. That affects my reputation and business confidence.
reviewer1619394 - PeerSpot reviewer
Group CIO at a construction company with 10,001+ employees
Nov 30, 2023
They could provide a unified licensing model, including all the security features.