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Sublime Security Reviews

Vendor: Sublime Security
4.5 out of 5
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What is Sublime Security?

Sublime Security provides innovative email security solutions focusing on advanced threat detection and customization, designed to tackle complex security challenges in enterprise environments.

Get the Email Security Buyer's Guide and find out what your peers are saying about Sublime Security, Darktrace, Microsoft Defender for Office 365 and more!
Sublime Security is the #18 ranked solution in top Email Security solutions. PeerSpot users give Sublime Security an average rating of 9.0 out of 10. Sublime Security is most commonly compared to Darktrace: Sublime Security vs Darktrace. Sublime Security is popular among the large enterprise segment, accounting for 44% of users researching this solution on PeerSpot. The top industry researching this solution are professionals from a financial services firm, accounting for 10% of all views.
Buyer's Guide
Email Security
April 2026
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Sublime Security mindshare

As of April 2026, the mindshare of Sublime Security in the Email Security category stands at 1.5%, up from 1.3% compared to the previous year, according to calculations based on PeerSpot user engagement data.
Email Security Mindshare Distribution
ProductMindshare (%)
Sublime Security1.5%
Proofpoint Email Protection7.3%
Microsoft Defender for Office 3657.3%
Other83.9%
Email Security
 
 
Key learnings from peers
Last updated Apr 27, 2026

Valuable Features

Sublime Security offers powerful advanced phishing detection and deep email analysis. Users appreciate its smooth integration with Microsoft and Google, ability to reduce manual work, customizable rules, and advanced threat detection. The platform provides real-time email visibility, detailed analyses, and rapid response actions, saving time and cost. Sublime acts as a smarter layer, offering fast time-to-value without needing a rip-and-replace, enhancing existing protections against sophisticated attacks.
  • "This is why it provides absolute value; it adds a smarter layer that catches anything missed by Microsoft 365 or Google Workspace protection, as attackers can breach those systems easily using flexible detection logic that security teams can quickly customize."
  • "Overall, the auditability and the ability to evaluate the information in Sublime through various mechanisms made me very comfortable with setting these capabilities to auto-remediation."
  • "I like its ability to detect and block."

Room for Improvement

Sublime Security could enhance local memory use, context selection, threat explanation, and end-user quarantine access. Enhancing integration with SOAR and SIEM tools would be beneficial. Reducing false positives and increasing customization options are also important. The learning curve is challenging, and pricing might be high for smaller businesses.
  • "To improve Sublime Security, I think the learning curve is the primary concern; it is powerful, but it is not plug and play."
  • "While they do provide API-level access and web hooks, I believe more out-of-the-box integrations with SOAR platforms and SIEM tools would enhance Sublime's value."
  • "The ability for users to look at their own quarantine box needs improvement. So at the moment, it doesn't give you the ability to see every email that has been quarantined. No end-user has the ability to see what's being quarantined. It's only people who have access to the back-end platform that can actually see what has been quarantined. The end user doesn't know if they have an email that has been quarantined, only if they're expecting something that didn't come through."

Pricing

Users describe Sublime Security's pricing and setup costs as competitive and reasonable, especially when purchased through AWS Marketplace. Many find the security platform priced well compared to other online options, with costs rated favorably on a scale of affordability. The solution is considered budget-friendly, particularly given the number of mailboxes supported, and fits competitively within the landscape of available security platforms. Some users are not directly involved with the licensing process but hear positive feedback.
  • "I would rate the pricing of Sublime Security as a seven out of ten. It is reasonably well-priced."

Popular Use Cases

Companies primarily use Sublime Security for email protection. It helps safeguard employee data against phishing, malware, and fraud. Organizations appreciate its integration with Microsoft 365 and Google Workspace. Advanced features like autonomous AI agents and LLM enhance detection and analytics. Businesses also deploy it for channel enablement, showcasing its capabilities to partners. Users value its ease of integration and ability to address sophisticated threats beyond basic spam filtering, replacing or supplementing existing defenses like FortiMail.

Service and Support

Sublime Security's customer support is noted for responsiveness and efficiency. Users report their integration went smoothly, with few requiring assistance. Colleagues mention quick response times and effective communication channels, such as a Teams channel, for updates and support cases. Users appreciate fast connections to engineering resources for complex issues and commend the team's wide-ranging expertise. Their support partnership allows for proactive engagement, contributing to a seamless experience.

Deployment

Setup with Sublime Security is described as straightforward by many users. It often involves gaining API access to Microsoft 365 or Google Workspace. While technical implementation takes around 30 minutes, larger organizations may need a week for internal approvals. With available online materials and documentation, users find its deployment medium in complexity. Some users experienced simplicity with partner assistance during onboarding. Sublime Security manages maintenance, including automatic updates, in a fully hosted SaaS model.

Scalability

Sublime Security demonstrates high scalability, adapting to various organizational demands. It's reported to efficiently manage extensive file handling and numerous mailboxes, with users noticing no slowdowns even with increased activity. The cloud-based nature ensures easy adaptability. Users rate the scalability exceptionally well, highlighting its capability to support thousands of employees. While not a traditional email security approach, its scalability indicates potential for future growth and enhancement.

Stability

Sublime Security demonstrates exceptional stability, praised for a zero-crash performance, rapid startup, and efficient file handling. Users report no downtime or reliability issues, attributing effectiveness to its scalable infrastructure and API-based development. Sublime Security quickly removes malicious content, enhancing email security and meeting high customer demands. Users consistently experience smooth operations without slowness, highlighting its mature ecosystem with ratings often reaching nine or ten out of ten for stability.
These insights are based on the in-depth reviews provided by peers to help you make a better buying decision.
Download our Email Security Buyer's Guide for additional reliable information.

Top industries

By visitors reading reviews
Financial Services Firm
10%
Computer Software Company
9%
Marketing Services Firm
7%
Outsourcing Company
7%
Healthcare Company
6%
Government
6%
University
5%
Manufacturing Company
5%
Retailer
4%
Legal Firm
4%
Media Company
3%
Educational Organization
3%
Energy/Utilities Company
3%
Construction Company
3%
Comms Service Provider
2%
Real Estate/Law Firm
2%
Pharma/Biotech Company
2%
Insurance Company
2%
Hospitality Company
2%
Transportation Company
2%
Wholesaler/Distributor
1%
Aerospace/Defense Firm
1%
Logistics Company
1%
Performing Arts
1%
Recreational Facilities/Services Company
1%
Leisure / Travel Company
1%
Non Profit
1%
Recruiting/Hr Firm
1%
Wellness & Fitness Company
1%

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Learn more about Sublime Security

True to its name, Sublime Security delivers a robust platform for email security that empowers professionals with precision tools for threat hunting and detection. It stands out for its focus on customization, allowing users to tailor security protocols to specific threats, enhancing detection accuracy. The platform supports detailed analysis, enabling IT teams to dissect threats and respond swiftly. Despite its strengths, improvement areas include easing integration processes and expanding user documentation.

What features define Sublime Security?

  • Advanced Threat Detection: Identifies complex phishing and malicious threats with accuracy.
  • Customizable Security Protocols: Tailors defenses according to specific organizational threats.
  • Detailed Threat Analysis: Provides comprehensive insights into threat patterns and behaviors.
  • Swift Response Mechanisms: Enables quick action against detected threats.

What benefits or returns on investment should users consider?

  • Enhanced Security Posture: Strengthens defenses against email-based threats.
  • Time Efficiency: Reduces time spent on threat identification and response.
  • Cost-effectiveness: Optimizes resource use by preventing security breaches.
  • Scalability: Adapts to growing security needs without significant additional investment.

Within the financial sector, Sublime Security is implemented to protect sensitive client data from phishing and malware attacks. In healthcare, it offers customized solutions for securing patient information against unauthorized access. The adaptability of its detection algorithms makes it valuable in diverse industry applications.

Sublime Security customers

Snowflake, Spotify, Anduril, Elastic, Compass, Encompass Health, Zscaler, Ovo Energy, Personio, Beneteler 

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Product Categories

Product Categories
Email Security

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Sublime Security Reviews Summary
Author infoRatingReview Summary
Manager Security Operations Center at a educational organization with 10,001+ employees4.5Sublime Security significantly improved our email threat detection, offering detailed analyses, reliable automation, and strong scalability. It's easy to implement, integrates well, and replaced our previous vendor without increasing headcount. I'm very satisfied with its performance and support.
Partner Account manager at a wholesaler/distributor with 51-200 employees4.5I rate Sublime Security 9/10 as an advanced email security platform. It combats sophisticated threats and enhances existing systems, offering clear ROI. However, it requires a learning curve, and its cost might deter smaller businesses.
Head of IT at a manufacturing company with 51-200 employees4.5I use Sublime Security for email security, appreciating its detection and blocking capabilities. However, end-user access to the quarantine box needs improvement. Comparing it to Microsoft Defender, I find it more proactive in stopping malicious emails.