Mimecast Email Security Gateway
April 08, 2025

Mimecast Email Security Gateway

Anonymous | TrustRadius Reviewer
Score 3 out of 10
Vetted Review
Verified User

Overall Satisfaction with Mimecast Advanced Email Security

We use Mimecast Advanced Email Security for email spam and malware filtering, as well as for email encryption for emails containing sensitive information. As a bank, it is imperative that we protect our customer information and prevent phishing emails from reaching our staff.

Pros

  • Automatically encrypting outgoing emails containing sensitive information
  • Preventing specific attachment types from being delivered
  • Delivering a digest of quarantined spam emails to users at specific intervals

Cons

  • Preventing spam from reaching users
  • Preventing phishing emails from reaching users
  • Using behavioral-based algorithms to prevent malicious emails
  • Customer service for support tickets; truly caring that an issue is resolved
  • Confusing policy configurations
  • We've had to beef up training and other email security tools because we get too many spam and phishing emails still with Mimecast Advanced Email Security in place. This is costing us at least an extra 15% annually in staff time and tooling than it should.
  • We have been pleased with data loss prevention with Mimecast Advanced Email Security, it does identify PII and auto-encrypts emails with PII effectively.
  • It does have the ability to integrate with other security tools via API, which is beneficial.
It is fine for our internal staff to use, it is intuitive for them; our customers seem to accept encrypted emails without much complaint or confusion. The policy configuration within Mimecast Advanced Email Security can be confusing.
It does integrate with other products fairly well, although it can be quite confusing to set up logs to be sent to a 3rd party via API. You need to disable certain security features temporarily, like MFA, to get this to work. This is not straightforward and takes several attempts.
Yes, we migrated from Microsoft's product to Mimecast Advanced Email Security.
We mainly moved because, in our opinion, Microsoft did a terrible job of preventing spam and phishing, and also because customers complained about not being able to open encrypted emails from us (Microsoft's tool is confusing). We have been pleased with the email encryption piece, and feel that Mimecast Advanced Email Security is better than Microsoft in many ways.
In my opinion, Mimecast Advanced Email Security outpaces Microsoft in terms of usability and reduction of spam and phishing emails. Mimecast Advanced Email Security was cheaper than Proofpoint, but I suspect Proofpoint is doing better on staying current with trends than Mimecast Advanced Email Security. I think Abnormal offers the best incoming email security, but does not offer outgoing email data loss prevention or encryption, which is a key use cast for us.

Do you think Mimecast Advanced Email Security delivers good value for the price?

No

Are you happy with Mimecast Advanced Email Security's feature set?

No

Did Mimecast Advanced Email Security live up to sales and marketing promises?

No

Did implementation of Mimecast Advanced Email Security go as expected?

Yes

Would you buy Mimecast Advanced Email Security again?

No

Mimecast Advanced Email Security is easy for general staff to use to encrypt email, and the experience for external recipients is better than for other email systems. However, in my opinion, Mimecast Advanced Email Security has not kept pace with other email security platforms in preventing newer types of email phishing attacks, and where it once shone in customer service for us, that metric has fallen short in the last 3 years. In my opinion, Mimecast Advanced Email Security seems to be trying to turn things around, but currently I cannot recommend them as a complete email security gateway.

Mimecast Advanced Email Security Feature Ratings

Secure Email Gateway
4.6
Anti-malware
2
Customizability
7
Data Loss Protection
8
Threat Detection
2
Sandboxing
2
End-to-End Encryption
9
Management Tools
2

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