Prevent more threats, respond faster, and spend less time on email security.
Legacy email security is slow, centralized, and one-size-fits-all.

Sublime flips that script, delivering tailored protection that adapts to new threats in hours, not months

We analyze messages with a suite of modern AI models, including natural language processing and computer vision, to stop the full spectrum of attacks.
Our AI agents work as extensions of your team, automating critical workflows from user report triage to proactive detection engineering.
Every detection is human-readable and auditable, so your team can understand the why, adapt instantly, and avoid waiting on vendor tickets.
Our Distributed Detection Model (DDM) combines intent and behavioral analysis, deep content inspection, and more to stop sophisticated attacks.

Moves beyond keywords to analyze message intent with Natural Language Understanding (NLU). Identifies social engineering, impersonation, and fraud by understanding tone, urgency, and conversational patterns.

Analyzes sender reputation and communication patterns to spot anomalies. Flags lookalike domains, suspicious infrastructure, and abuse of trusted cloud services missed by traditional checks.

Recursively unpacks files, URLs, and images to find hidden payloads. Decodes QR codes, extracts text with OCR, and uses computer vision to spot phishing pages.
Sublime's agents automate critical workflows to make your entire defense more responsive and effective.
See how Sublime stops more attacks with less work.
Sublime's operating modes fit your security philosophy and team maturity.
Let AI agents and a continuously updated detection feed handle common threats, freeing your team to focus on critical incidents.
Review and accept AI-proposed detections and apply scoped exceptions. No more waiting on vendor support tickets.
Empower detection engineers to author, backtest, and deploy custom detections for your specific environment.
Stop novel phishing, BEC, and malware with broad AI-powered coverage.
Avoid costly false positives with granular exclusions and explainable detections.
Automatically triage user reports and clear your abuse mailbox backlog.
Update detection coverage for emerging threats in hours, not months.
Write, backtest, and safely roll out tailored policies for your environment.
Learn moreRetro-hunt for behavioral signals and other non-IOCs across all messages.
Learn moreAuto-hunt new IOCs and enforce forward blocks with bi-directional TIP integration.
Learn moreTrace incidents to email origins, scope full campaigns, and remediate fast.
Learn moreProactively eliminate entire threat classes based on unusual environmental patterns.
Learn moreNatively execute YARA rules on bodies, attachments, and URLs - live and retroactively.
Learn moreIdentify PII exposures across inbound, outbound, and internal mail flows.
Learn moreOrchestrate workflows via a full REST API and export telemetry to your SIEM/SOAR.
Learn moreSublime is an API-first platform designed to extend and enhance your existing security investments, creating a unified, automated defense.
Quickly protect your email environment with Sublime’s free email security tools. Create an account or analyze an email right away.
Scan and analyze suspicious emails with advanced email protection tools.
Get actionable insights into email threats.
Preview suspicious links and identify phishing attempts.
Automatically detect and prevent malicious email threats with our email protection service.
Search and respond to suspicious messages.
Monitor your email security health at a glance.
See how Sublime delivers autonomous protection by default, with control on demand.