Sublime Email Security Platform Reviews & Product Details

Sublime’s agentic platform stops more email attacks with less work. Our AI agents work like a digital SOC team in your environment, triaging and blocking advanced threats while adapting protections at adversary speed. It provides full transparency and automation by default, with control on demand for advanced teams, eliminating vendor bottlenecks or one-size-fits-all limits. Core Outcomes (The What): - Stop More Attacks with Fewer False Positives - block sophisticated threats (BEC, novel phishing, QR-based phishing) and reduce the false positives that waste time and disrupt workflows. Our tailored protections deliver a demonstrably higher catch rate, validated by the world's most demanding security teams. - Automate the Abuse Mailbox - Our Autonomous Security Analyst (ASA) automates triage, investigation, and remediation of user-reported email, cutting MTTR from hours to seconds and freeing your SOC team to focus on the threats that matter most. - Adapt Defenses Automatically. - When a missed attack is identified, we can create new coverage in hours. Our Autonomous Detection Engineer (ADÉ) generates, backtests, and deploys org-specific coverage, eliminating vendor ticket limbo. Differentiators (The How): - A Team of Agents using AI, Not Just a Black Box - Sublime deploys a team of specialized agents - like an analyst and a detection engineer - that use AI to protect, triage, and adapt your defenses. Unlike an opaque, monolithic AI, our agentic approach provides full transparency into every action, with visible decision history, message lineage, and backtests. - Org-Specific Protection, Not One-Size-Fits-All - Our Distributed Detection Model (DDM) is the foundation of our platform. It runs per-environment coverage that adapts to the unique attacks you face, allowing us to safely deploy protections that would be noisy in global models - something centralized systems simply can’t support. This means higher day-one efficacy and fewer false positives. - Autonomous by Default, Control on Demand - By stopping more attacks and reducing false positives, Sublime delivers a superior autonomous experience that requires less work. For advanced teams, the platform is fully extensible, allowing you to author your own detections and hunt for threats with a level of precision that one-size-fits-all solutions can't. Innovative organizations including Spotify, Snowflake, Brex, Elastic, Compass, Anduril, SentinelOne, and others rely on Sublime to secure the business and keep teams focused on strategic defense. 🔗 Learn how Sublime helps security teams stop more attacks with less work at sublime.security

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Sublime Security

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Product Description

Not just another black box, Sublime is an API-based, adaptive email security platform that combines best-in-class effectiveness with visibility and control.

Overview by

Christine Huynh

Value at a Glance

Averages based on real user reviews.

Time to Implement

1 month

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Sublime Email Security Platform Integrations

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Verified by Sublime Email Security Platform

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Sublime Email Threat Research Report 2025

G2 reviews are authentic and verified.

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Patrick L.

Information Security Manager

Mid-Market (51-1000 emp.)

8/29/2025

"Best-in-Class Security Platform"

5/5

What do you like best about Sublime Email Security Platform?

The platform is incredibly intuitive, giving us full visibility into email threats without complex setup or management. The dashboards and alerting make it easy to stay ahead of attacks. The ability to customize detection rules and workflows is a huge plus. We’re not locked into a one-size-fits-all product—it adapts to our environment.

We were able to connect Google Workspace and start seeing results in less than 10 minutes. Review collected by and hosted on G2.com.

What do you dislike about Sublime Email Security Platform?

Sublime's Message Query Language (MQL) is powerful and incredibly useful for creating detection rules and automations, but it does require some trial and error and time spent with documentation to be able to use it to its full potential. Review collected by and hosted on G2.com.

What problems is Sublime Email Security Platform solving and how is that benefiting you?

We are solving a number of issues with Sublime:

- The Google Workspace-native email security tools are cumbersome to use and don't provide much visibility into why something was flagged. Sublime provides a lot of detail on attack signals and message details, allowing our Security team to analyze potential threats faster.

- Sublime's detection of malicious emails is very good. During our first week, a number of employees received a well crafted phishing email that Google did not detect, but Sublime flagged it as malicious instantly.

- Sublime allows us to automate the response to malicious emails, which reduces the risk to end users and saves Security teams valuable time. Review collected by and hosted on G2.com.

John H.

Enterprise Platforms & Services - Senior Email Engineer

Enterprise (> 1000 emp.)

6/6/2025

"Reliable detection out of the box, unrivalled support, transparency and endless customisation."

5/5

What do you like best about Sublime Email Security Platform?

I'm a big fan of the transparency of the platform and how you can see the what, the why, the how a threat was detected and prevented.

The limitless ability to tune and customize detections to provide the best coverage for our organisation (whilst still providing reliable coverage right out of the box). Initial deployment is a piece of cake.... In just a few clicks you are ingesting historic data and detecting threats.

Another stand-out to me is the excellent slack community where you can not only engage directly with the Sublime team for support but where other customers can share ideas, detections and threats they have seen. Review collected by and hosted on G2.com.

What do you dislike about Sublime Email Security Platform?

I find it hard to offer criticism of Sublime as any "dislikes" I had have been addressed by Sublime since we became a customer.

If I had to be pressed I would like to see some improvement in the native reporting abilities of the platform and the capability to export these reports for consumption. Review collected by and hosted on G2.com.

Christopher C.

Principal Information Security Engineer

Enterprise (> 1000 emp.)

5/21/2025

"As my colleague one said: "It's built for analysts by analysts""

5/5

What do you like best about Sublime Email Security Platform?

It’s one of the few tools we’ve implemented that truly just works. Low maintenance, no tuning—it just does what it’s supposed to do. Review collected by and hosted on G2.com.

What do you dislike about Sublime Email Security Platform?

Sublime just works and I can't think of any downsides of someone using Sublime. Product is awesome, the Sublime folks are amazing and could not say anything bad about it. Review collected by and hosted on G2.com.

What problems is Sublime Email Security Platform solving and how is that benefiting you?

We needed a solution that could reliably detect threats and automate remediation to free up analyst time for more strategic security initiatives. Before Sublime, analysts were spending hundreds of hours handling phishing cases, with each investigation taking 10-15 minutes and often requiring follow-on actions from Elastic’s Incident Response team.

After deploying Sublime, the number of investigations dropped by 62% within the first quarter, but the percentage is likely higher due to benign reports unrelated to phishing. Review collected by and hosted on G2.com.

Verified User in Airlines/Aviation

Enterprise (> 1000 emp.)

11/18/2025

"Fast, Accurate Phishing Protection with Effortless Deployment"

5/5

What do you like best about Sublime Email Security Platform?

API-based deployment that quickly catches phishing and BEC with low false positives, clear reporting, and simple policy tuning. Review collected by and hosted on G2.com.

What do you dislike about Sublime Email Security Platform?

Limited advanced reporting and audit exports, uneven integration depth, and an admin UI that lacks fast search/bulk actions; pricing also ramps up quickly as mailboxes grow. Review collected by and hosted on G2.com.

What problems is Sublime Email Security Platform solving and how is that benefiting you?

It tackles the biggest email-borne risks—phishing, BEC/impersonation, vendor fraud, and malware in links/attachments—using API-based detection and automated remediation to remove threats quickly. That means fewer incidents and account takeovers, less noise for users and the SOC, faster investigations with unified quarantine/forensics, and clearer reporting for compliance. Net result: higher user confidence, lower risk, and shorter mean time to detect and respond. Review collected by and hosted on G2.com.

Verified User in Retail

Enterprise (> 1000 emp.)

6/3/2025

"Excellent Email Security Platform"

5/5

What do you like best about Sublime Email Security Platform?

What’s great about Sublime is how flexible it is. If you’re into that sort of thing, you can geek out on detection rules, figure out why something was quarantined, go on threat hunts, and even create your own detection rules. You can also set up automation to make your security ops simple; or if you’d rather, you can just deploy it and forget about it – it’s completely up to you. Deployment literally takes 5 minutes and the customer support team is pretty much an extension of your existing team - no ask is too small. Review collected by and hosted on G2.com.

What do you dislike about Sublime Email Security Platform?

There’s not much to dislike, but if I had to pick something, it would be the learning curve for some of the more advanced features. However, once you get the hang of it, the platform becomes a powerful tool, and the flexibility it offers is well worth the initial effort. Review collected by and hosted on G2.com.

Verified User in Entertainment

Enterprise (> 1000 emp.)

5/23/2025

"Proactive and simplified email security"

5/5

What do you like best about Sublime Email Security Platform?

Sublime is a reliable, trustworthy platform that consistently delivers proactive rule logic and timely, dedicated customer support. It's user-friendly platform and minimal learning curve has been critical in enhancing my D&R team's operations. The Sublime team also goes above and beyond in their reception to feedback, quickly iterating on feature requests and enhancements to the platform. It's clear we share aligned goals, making this one of the most valuable partnerships my team has. Review collected by and hosted on G2.com.

What do you dislike about Sublime Email Security Platform?

No complaints here! I've interacted with the platform frequently over the years, and two things have remained consistent: its reliability and ease of use, and how everyone on the team is exceptionally technical, responsive, kind, and committed. They consistently go above and beyond to facilitate a strong, collaborative working relationship and ensure a seamless detection-to-response pipeline. Review collected by and hosted on G2.com.

What problems is Sublime Email Security Platform solving and how is that benefiting you?

Sublime has helped significantly enhance our email threat detection and response, by identifying sophisticated campaigns, automating rule logic, and integrating seamlessly with our SOAR, SIEM, and greater workflow. Overall, it's helped us shift from a more reactive approach to a more proactive stance on email security. Review collected by and hosted on G2.com.

Verified User in Education Management

Enterprise (> 1000 emp.)

5/21/2025

"Best in the business for email security"

5/5

What do you like best about Sublime Email Security Platform?

The ease of the deployment and rapid response to evolving email security threats. We were able to enable it for a large organization and have it work immediately, allowing us to start remediating threats in our email environment. Sublime is constantly pushing out detection rules for the newest threats and picking up on things way before any other tool could. Review collected by and hosted on G2.com.

What do you dislike about Sublime Email Security Platform?

There is not much to dislike about Sublime, it has worked since day one and has had a huge, positive impact for our organization. Review collected by and hosted on G2.com.

What problems is Sublime Email Security Platform solving and how is that benefiting you?

Our previous email security solution would not identify novel phishing threats and would constantly allow malicious emails to land in user's inboxes. Since implementing Sublime and enabling the auto-quarantine feature, we have seen a drop in 60% of user reported phishing emails. Sublime is constantly catching and remediating emails long before the end user ever sees them. Review collected by and hosted on G2.com.

Verified User in Oil & Energy

Enterprise (> 1000 emp.)

5/27/2025

"You Think Your Email Security is Good? I'll Show You Sublime."

5/5

What do you like best about Sublime Email Security Platform?

Detections are second to none.

Ease of setup.

Ability to self host.

Customer service is excellent.

The threat research team quickly creates rules in response to new attacks.

The interface is intuitive.

Statistics are comprehensive.

The company truly value customer feedback.

Integrates to SOAR platforms easily with a robust API and webhooks. Review collected by and hosted on G2.com.

What do you dislike about Sublime Email Security Platform?

I have yet to find something I dislike about the product. Review collected by and hosted on G2.com.

What problems is Sublime Email Security Platform solving and how is that benefiting you?

Sublime solves the typical business problem of managing the large and ever-evolving attack surface presented by sophisticated phishing campaigns. The benefits are endless and too exhaustive to list, however the main ones include a minimized attack surface, second-to-none detections with a high true positive detection rate, and granular insights into email attack methods. Review collected by and hosted on G2.com.

Chace B.

Lead Security Analyst

Enterprise (> 1000 emp.)

5/21/2025

"Full of capabilities with excellent support"

4.5/5

What do you like best about Sublime Email Security Platform?

We recently swapped our SEG from a competitor to Sublime and the experience so far has been excellent. Sublime’s team and our CSP have been readily available to bring our team up to speed and aid in making the transition seamless. Having full transparency over our detection rules has elevated our teams ability to detect and respond to email threats. Review collected by and hosted on G2.com.

What do you dislike about Sublime Email Security Platform?

There is a significant learning curve required to fully utilize Sublimes capabilities, specifically regarding MQL. However, Sublime overs public and private training sessions to increase our ramp up rate. Review collected by and hosted on G2.com.

Verified User in Manufacturing

Enterprise (> 1000 emp.)

5/27/2025

"The best security software I have used"

5/5

What do you like best about Sublime Email Security Platform?

I love how easily it is it implement, its effectiveness, and how transparent the whole software is about what it detect & why. You will very quickly see a return on investment due to much cleaner inboxes, rid of malware, phishing attempts and other attacks. They continually add new features and detections. I feel sublime is the best email security platform out there right now, and one of the strongest tools at our disposal. Review collected by and hosted on G2.com.

What do you dislike about Sublime Email Security Platform?

it is not a good fit for on-prem email or non-m365 or g-suite mail systems, based on how it is designed to work Review collected by and hosted on G2.com.