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    Sublime Email Security Platform

    Sublime stops more email attacks with less work. Our agentic platform protects, adapts, and responds in real-time, eliminating vendor bottlenecks.

    Ratings and reviews

    4.8
    31 ratings
    3 star
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    94%
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    31 external reviews
    External reviews are from G2  and PeerSpot .

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    Reviews (31)
    reviewer2809026

    Advanced email rules have improved spam detection and made daily reviews more efficient

    Reviewed on Jul 03, 2026
    Review provided by PeerSpot

    What is our primary use case?

    My main use case for Sublime Security is to test how this product works, so I am using this for that purpose.

    For a quick specific example of what I tested with Sublime Security, it detects the emails of the person on this side to check that feature, and there is a feature in Sublime Security that is detection as code, which is an excellent feature that I have noticed in this product. I am talking about eleven hundred, and that detection feature is something where I can explicitly customize mentions of power spam or non-structured email. With our custom permissions, we have it, and getting that notice by word blocking is something very important. It is a great feature that I have been using.

    Regarding my main use case for testing Sublime Security, it is very good, and I fully specify that detection; it is something very extensive with maximum features.

    What is most valuable?

    The best features Sublime Security offers include detection as code, which gives a very powerful feature for users to write rules, custom objects, and the language provides some syntax that is definitely a good feature. The second one is why it detects spam emails or justifies why this is considered spam, which is the second most valuable feature.

    I use the detection as code feature in my day-to-day life, which usually identifies junk emails and spam emails by default with the conditions and the vast dataset it has. Even if some emails may not get into that machine learning dataset, I can describe if it is from an external source and has rewards; I can remove it since it is considered spam. This feature changes the usual segregation and categorization, helping users not fall for known types of emails that the system may not detect. The explanation of justification, instead of just flagging something as spam, gives the user understanding such as, this is not a Google email; we really cannot click on it. It enhances user security, and even if another user sees this type of content based on gesture events for another email, they think not to use the image correctly.

    Sublime Security has positively impacted my organization.

    What needs improvement?

    I would say there are very minimal changes needed regarding Sublime Security; for first-time users, it can be difficult knowing how to write the tool. Having some templates available would improve the experience.

    My advice for others looking into using Sublime Security is that each edition would be helpful for initial users, and users should set templates in, which can be added; right now, I am not trying anything new, as this is cool.

    For how long have I used the solution?

    I have been using Sublime Security for three months.

    What do I think about the stability of the solution?

    Sublime Security is stable; I confirm this.

    Which solution did I use previously and why did I switch?

    I did switch to Sublime Security; it is part of my style of working.

    Which other solutions did I evaluate?

    Before choosing Sublime Security, I evaluated alternatives such as MyCast and Proofpoint, which I refused before finalizing on Sublime Security.

    What other advice do I have?

    Phishing versus phishing detection is also something I find good, and I have mentioned these things already.

    Since I have been using Sublime Security personally, I have noticed specific improvements like fewer spam emails and improved detection, which saves me time. It helps me segregate emails instead of reviewing all things manually, as it detects spam emails. I do not have to go through every email, which makes me very efficient for other tasks. It also shows if some emails are current, and if I am about to register or receive registration links, it tells me why those emails are separated. I understand better instead of reading all the emails, and it summarizes the words or thumbnails of the emails. If an email is considered good, I continue, making my time more efficient.

    Regarding the AI capabilities of Sublime Security, I think for detection, using ML to analyze content is already a feature present in Sublime Security, which also identifies phishing attempts.

    I think Sublime Security shows false positives. I give this review a rating of nine.

    reviewer2805510

    Advanced email protection has enabled us to safeguard partners and reduce costly phishing risks

    Reviewed on Apr 02, 2026
    Review provided by PeerSpot

    What is our primary use case?

    Our main use case is two-fold. Primarily, as a channel partner, our core focus is channel enablement. We actively pitch, demonstrate, and distribute Sublime Security to our partner network, who then deploy it for end-user organizations. Secondarily, we 'drink our own champagne' by running it internally to protect our own business communications.

    When we position it to our partners, we frame it as an advanced email security platform. It goes far beyond traditional junk filtering by actively hunting the sophisticated threats that bypass native defenses—specifically Business Email Compromise (BEC), CEO fraud, invoice scams, fake login pages, and malware attachments.

    How has it helped my organization?

    As a distributor, the positive impact for us is measured by how well the product performs for our partners and their end-users. Sublime Security has been a major positive because it perfectly fits our criteria for 'best-in-breed' solutions. Specifically, it delivers strong ROI, saves employee time, and significantly reduces risk exposure by preventing expensive breaches. Because it checks all these boxes, we've been able to successfully enable our partners across all our regions to confidently take it to market.

    Another major positive is its deployment model. In today's cybersecurity landscape, 'rip-and-replace' is a massive hurdle for buyers. Sublime works flawlessly with existing tools, enhancing a customer's current stack rather than forcing them to rebuild it.

    What is most valuable?

    The standout features of Sublime Security revolve around its ability to catch advanced threats that bypass native defenses. Specifically, it excels at blocking malware attachments and stopping Business Email Compromise (BEC), such as CEO fraud and invoice scams.

    A major advantage is its fast time-to-value because it isn't a rip-and-replace solution. Instead, it acts as a 'smarter layer' that enhances existing protections like Microsoft 365 or Google Workspace. While native security catches the obvious junk, Sublime uses flexible, customizable detection logic to catch the highly sophisticated attacks that easily slip through standard filters.

    Finally, the platform gives you deep visibility and fast search capabilities across all email activity. Without a tool like this, investigations take far too long, and teams lack visibility into what actually breached the inbox. Sublime solves this by offering rapid detection, automated response actions, and the ability to quickly remove malicious emails in bulk.

    What needs improvement?

    Based on the feedback we receive from our partners and their end-users, there are two main areas for improvement: the learning curve and pricing for smaller organizations. First, while the platform is incredibly powerful, it isn't simply 'plug-and-play.' Security teams need to invest time into learning the product to extract its full value.

    Second, the cost can feel a bit steep for small-to-medium-sized businesses (SMBs). However, we always caveat this by looking at the ROI: a single breach could put a small company completely out of business. While the upfront cost might seem high to them, preventing just one catastrophic breach means the tool instantly pays for itself.

    For how long have I used the solution?

    I have been using the solution for eighteen months.

    What other advice do I have?

    On a scale of one to ten, I rate Sublime Security a nine out of ten because I believe there are a couple of negatives regarding scalability for catering to enterprise and small to medium enterprises. Additionally, the product requires a learning phase, and it is not readily usable right away.

    Sublime Security merits this rating because of a couple of changes that need to be addressed. If it catered to both small and enterprise businesses on a pricing scale, it would receive a ten, but it is not far away.

    Kyle B.

    Effortlessly Blocks Malicious Emails, Saves Time

    Reviewed on Feb 23, 2026
    Review provided by G2
    What do you like best about the product?
    I like that the Sublime Email Security Platform is highly automated, which saves us time. We've significantly cut down the hours we used to spend reviewing emails and reported emails, reducing our annual effort by 400 hours. The initial setup was extremely easy.
    What do you dislike about the product?
    I have no complaints at this time.
    What problems is the product solving and how is that benefiting you?
    I use Sublime Email Security Platform to prevent malicious emails, solving the problem of phishing emails reaching users. It's highly automated, saving us time and reducing our email review effort by 400 hours annually.
    Maryam S.

    Robust Malware Protection with Seamless Setup

    Reviewed on Feb 18, 2026
    Review provided by G2
    What do you like best about the product?
    I appreciate the Sublime Email Security Platform for its detection and automation features, especially behavior and content-based detection. The initial setup was great and seamless, making the transition from Minecast very smooth.
    What do you dislike about the product?
    Na
    What problems is the product solving and how is that benefiting you?
    I use Sublime Email Security Platform for malware protection, benefiting from its detection and automation features like behavior and content-based detection.
    Jack G.

    Flexible Detection Rules with Sublime Email Security

    Reviewed on Feb 17, 2026
    Review provided by G2
    What do you like best about the product?
    I appreciate how user-friendly both the UI and API of the Sublime Email Security Platform are, which allows me to create in-depth detections and automations easily. I like that Sublime MQL facilitates deep customization when creating detection rules, capturing specific scenarios with various email attributes. The platform provides complex detection rule creation that would be challenging with other solutions, and it's impressive how the functions in MQL allow for intricate rule construction, down to prevalence within the configured tenant. The powerful language of Sublime provides extensive coverage with its rules, which is another aspect I find valuable.
    What do you dislike about the product?
    Availability of ASA via the Sentinel integration? Allowing the summary to be forwarded to Sentinel.
    What problems is the product solving and how is that benefiting you?
    I use Sublime Email Security Platform for creating complex detection rules efficiently with MQL. The user-friendly UI and API enable seamless detection and automation, and the platform's powerful customization allows specific email scenarios to be captured.
    Jonathan C.

    Powerful and Intuitive Email Security Solution

    Reviewed on Feb 11, 2026
    Review provided by G2
    What do you like best about the product?
    I like how the Sublime Email Security Platform is really intuitive and offers a lot of functionality. The API backend is robust, letting us expand capabilities and add automation. The reporting, hunting, and rule creation journey are great. I also appreciate that the initial setup is really easy.
    What do you dislike about the product?
    Nothing.
    What problems is the product solving and how is that benefiting you?
    I use Sublime Email Security Platform to handle detections and manage coverage effectively. It fills gaps where other tools can't, with powerful MQL for custom rules tailored to our needs.
    John H.

    Accurate Out of the Box, Transparent Detections, and Powerful Automations

    Reviewed on Feb 11, 2026
    Review provided by G2
    What do you like best about the product?
    I like that Sublime has a high degree of accuracy out of the box negating a long tuning process. The regular updates to existing and creation of new core detections keeps us well protected. The ability to create custom detection, create bespoke automations is a massive plus point. I like that the detection logic is transparent, so you always know why something was flagged. The API features also make it simple to integrate into existing workflows and remove repetitive manual tasks.
    What do you dislike about the product?
    Sublime develops and releases new valuable features regularly that we would love to use. Unfortunately, inconsistencies in regional hosting outside of the direct control of Sublime can mean that sometimes these valuable new features don’t appear in our region right away.
    What problems is the product solving and how is that benefiting you?
    Sublime greatly strengthens our overall detection stack by adding defence in depth, its automated remediation of threats and it's automated analysis and remediation of user‑reported phishing significantly reduces manual investigation time whilst maintaining or improving response quality.
    Computer & Network Security

    AI-Powered Email Security with Deep Detection Insights and Granular Control

    Reviewed on Feb 10, 2026
    Review provided by G2
    What do you like best about the product?
    AI powered email security with deep insight into detection logic and ability to get extremely granular with controls.
    What do you dislike about the product?
    Learning curve on rule language is steep and it takes some time to refine initial detection logic, get it tuned for your environment.
    What problems is the product solving and how is that benefiting you?
    Allows for hands-off handling of email security with high confidence. Great integrations with newer-gen security awareness training products, and great integration with Microsoft and Google built-in reporting tools
    Rob C.

    Advanced Threat Protection with Stellar Support

    Reviewed on Feb 09, 2026
    Review provided by G2
    What do you like best about the product?
    I really like that the Sublime Email Security Platform is simple to use and very customizable, which is important for our large and sometimes complex organization. We love that the engineers are also the support team and are always happy to help, whether by jumping on a call or messaging in Teams. It's easy and straightforward to manage, thanks to this hands-off approach where it basically does everything itself.
    What do you dislike about the product?
    The only thing I can think of is there's a feature that only processes data in the US (ADE and the ability to automatically share emails with Sublime), whereas we need everything to be processed in the UK. It's just very key for us that everything's in the UK.
    What problems is the product solving and how is that benefiting you?
    I use Sublime Email Security Platform as a post email proxy against advanced phishing threats. It's able to identify AI-generated threats that traditional gateways and detection services can't detect.
    Accounting

    Easy Setup and Flexible Customisation, Though a Few Rough Edges

    Reviewed on Feb 09, 2026
    Review provided by G2
    What do you like best about the product?
    - Easy setup
    - Helpful customer success & customer support team
    - Good amount of flexibility and customisation options due to the inherent transparency of the platform
    What do you dislike about the product?
    - Some rough edges (e.g. audit logs are not quite there yet ; sometimes the UI doesn't link to the appropriate place ; encoding issues ; replies to user reports)
    - Slightly more false positive than competitors
    - Delay on planned features
    What problems is the product solving and how is that benefiting you?
    Reducing the amount of phishing email that we receive as an organization to decrease the risk of a successful phishing attempt.