Mimecast Advanced Email Security
Reviews
Star rating
Rank in Secure Email Gateway
Pros and cons
Pros
- Email Security
- Ease of Use
- Security
- Features
- Spam Blocking
- Customer Support
Cons
- Complexity
- Email Filtering Issues
- Email Issues
- Ineffective Detection
- False Positives
- Configuration Difficulties
Traffic & LLM citations
Source: G2 review data
Winning from
Losing to
Key stats
Adoption by company size
| Segment | Share of reviews |
|---|---|
| Small Business | 17.1% |
| Mid-Market | 65.5% |
| Enterprise | 17.4% |
Quarterly history
| Quarter | Reviews | Star rating |
|---|---|---|
| 2024 Q4 | 5 | 4.7 |
| 2025 Q1 | 12 | 4.1 |
| 2025 Q2 | 8 | 4.5 |
| 2025 Q3 | 4 | 4.6 |
| 2025 Q4 | 6 | 4.1 |
| 2026 Q1 | 2 | 3.5 |
| 2026 Q2 | 3 | 4.8 |
| 2026 Q3 | 26 | 4.3 |
Satisfaction ratings
What reviewers say
Transparent, Safe, and Trustworthy—A Modern, Easy-to-Use Product
“The transparency and safety of the product is reliable and the company seen to be trustworthy. Very use to understand and work with it, also very modern.”
Top-Tier Email Security That Keeps Corporate Inboxes Safe
“It offers some of the best email security features in its segment, and it works very vigilantly by isolating malicious emails. I would recommend it for any corporate environment.”
Easy DLP Integration and Strong Impersonation Protection with Mimecast
“Easy Integration with DLP, Solid Impersonation protection, URL control is also better the other products in the market. Overall mimecast email security is best solution for my org.”