Email data loss prevention (DLP)

Catch email data leaks with outbound detection and prevention.

From a threat intelligence perspective, Sublime is offering us a whole new paradigm in detection opportunities and controls. Leveraging Sublime's API, we can push our collections of indicators to include domains, IPs, hashes, etc. to Sublime and have immediate enforcement and blocking in real time.

Haider Dost
Head of Global Threat Detection and Threat Intelligence, Snowflake

No items found.

No items found.

The email data loss prevention platform

Sublime prevents email-based data loss using a combination of machine learning techniques and behavioral detection.

01

Policy enforcement

Automatically enforce data protection policies by blocking or alerting on messages that violate organizational data handling policies and compliance requirements.

02

Contextual analysis

Natural Language Understanding techniques evaluate intent to detect potential data leaks and can be combined with string matches and regex for more precise control.

03

Deep file inspection

Recursive file analysis inspects embedded files and AI techniques like Optical Character Recognition and computer vision detect sensitive and company-branded content within images and other document types.

04

Automated response

Customize automated workflows based on detections and verdicts.

Ready to prevent data loss through email?

See how Sublime's data loss prevention capabilities can protect your organization from data leaks with comprehensive outbound monitoring.

No items found.

What our customers are saying

The black box approach to email security no longer works. 
It reduces visibility on how 
Brex may be attacked and 
the tactics and techniques 
used by attackers. 



With Sublime, we now have transparency and the confidence to keep up with emerging threats.

Mark Hillick
CISO, Brex

The ability to automate remediations with high confidence and minimize manual reviews unlocks a new level of efficiency in our SOC. It’s hard to imagine going back to life before Sublime.

JJ Agha
CISO, Fanduel

What I love about the platform is that it just works. I’m so tired of all these tools I have to futz with, and Sublime is just easy.

Jason Kikta
CISO, Automox

With Sublime, we no longer wait weeks for vendor updates. Our team reacts instantly - which is critical for our fast-moving environment.

Ronald Richards
OVO Energy

Latest from Sublime

November 3, 2025
Attack spotlight

ICS phishing: Stopping a surge of malicious calendar invites

Ahry Jeon
Product Manager
Brandon Murphy
Detection
October 28, 2025
Sublime news

Sublime raises $150M Series C to arm defenders for the post-LLM world

Josh Kamdjou
Co-founder & CEO
Ian Thiel
Co-founder & COO
October 23, 2025
Attack spotlight

Direct Send abuse on Microsoft 365: Just another failed authentication

Peter Djordjevic
Detection

Frequently asked questions

What is data loss prevention software and how does it protect email?
Data loss prevention software monitors outbound communications to detect and prevent unauthorized sharing of sensitive data. It scans emails for patterns, keywords, and attachments that indicate potential data leaks or policy violations.
How does email data loss prevention software detect sensitive information?
Email data loss prevention software uses pattern recognition, natural language processing, and machine learning to identify sensitive data like SSNs, financial information, and confidential documents in both message content and attachments.
Can data loss prevention software prevent both accidental and intentional data leaks?
Yes, data loss prevention software detects both scenarios by monitoring patterns, user behavior, and content analysis.
What types of data can email data loss prevention software protect?
Email data loss prevention software can protect personally identifiable information (PII), financial data, intellectual property, healthcare records, legal documents, and any custom data types defined by organizational policies.
How does data loss prevention software handle compliance requirements?
Data loss prevention software generates detailed audit logs, compliance reports, and policy violation alerts. It helps organizations meet regulatory requirements like GDPR, HIPAA, and PCI-DSS through automated monitoring and reporting.

Now is the time.

See how Sublime delivers autonomous protection by default, with control on demand.