Layered, AI-driven
email security
AI-generated attacks don’t play by yesterday’s rules. Your defense shouldn’t either. Libraesva protects against evolving threats, without ever giving up your data.
Trusted by companies like these
Threats have evolved. Has your email security?
Generative AI-crafted deception has changed the game – phishing emails can now sound just like your CEO. Yet most security tools are still playing by old rules. Many “AI-powered” defenses send your confidential emails to the cloud for analysis, creating new vulnerabilities in the name of security.
What you’re up against
AI mimics human tone
Generative AI makes it easier to fake emails from known individuals and businesses.
Clones and copies
Thread hijacking and internal impersonation are becoming more common.
Business email compromise is evolving
Business email compromise (BEC) attacks are using social cues, not malware.
AI-powered attacks are highly targeted
Attacks can be tuned to your context, to bypass security.
94%
Of human-targeted
cyberattacks start with email
81%
Of organisations experienced a
phishing attack in the past year
3.4 billion
Phishing emails are sent
every day globally
Intelligent layered security
Semantic AI
Understands meaning and flags intent-based deception. Local-only processing. Zero data exposure.
Adaptive Trust AI
Learns your organization’s communication patterns to detect anomalies. Never trains on your content. Privacy-first always.
Deep-inspection & sandboxing
Analyses attachments in a fully isolated local sandbox. Entirely inside your environment.
Active URL analysis
Dissects every URL path for hidden threats, without sharing link data externally or relying on third-party APIs.
Security built for the attacks no-one sees coming
Libraesva combines context-aware AI with layered intelligent protection. Our Semantic AI identifies meaning, not just keywords, spotting intent-based threats.
Adaptive Trust AI tracks communication patterns and behavior within your organization to flag anomalies in real time. No cloud analysis, no data leaks. Just smart, sovereign email security.
Libraesva Email Security sees what others miss
Understand the message
Semantic AI goes beyond keywords and reads the intent behind every email, catching impersonation and AI-written deception others ignore.
Know what “normal” looks like
Adaptive Trust AI continuously maps your organization’s communication patterns to flag unusual interactions and behavioral anomalies in real-time.
Layers of defense
Secure gateway scanning with deep AI stops threats at every stage. Semantic and Adaptive Trust AI detect deception, while sandboxing and URL checks stop what others miss.
Semantic AI
Understands meaning and flags intent-based deception. Local-only processing, zero data exposure.
Deep inspection and sandboxing
Analyses attachments in a fully isolated local sandbox, entirely inside your environment.
Adaptive Trust AI
Learns your organization’s communication patterns to detect anomalies. Never trains on your content, always privacy-first.
Active URL analysis
Dissects every URL path for hidden threats, without sharing link data externally or relying on third-party APIs.
Generative AI threats
blocked by discriminative
AI defenses
We didn’t jump on the AI bandwagon – we built it.
Libraesva’s Adaptive Trust AI has long delivered privacy-conscious threat detection and, as GenAI fuels a new wave of threats, we’ve raised the bar again. Now, our Semantic AI pushes further: understanding language, intent and context to protect your inbox from attacks the world hasn’t yet seen.
Running locally,
so your data stays yours
Other platforms outsource protection to cloud GPUs and ship your messages to massive cloud-based LLMs. We don’t.
Libraesva’s efficient, purpose-built small language models (SLMs) are designed specifically for email security, not general AI tasks. And they run directly on your existing hardware.
No off-site processing, no third-party risk. Because real security means keeping your data where it belongs – with you.
Testimonials
“Libraesva Email Security is indispensable… I would recommend it to other companies for blocking threats such as phishing, suspicious links, malicious attachments, and annoying spam.”
Enrico Serotti
IT Manager
“The interface is very clear and it is easy to identify the reasons why an email was rejected or blocked. The learning curve is rapid and you can count on comprehensive technical support.”
Fabio Bozzolo
IT Infrastructure Manager
“I would definitely recommend Libraesva Email Security to other companies like ours.”
D.L.
“Ease of configuration, excellent features, and effective results in securing email.. And support has always been prompt, quick to provide us with feedback and solutions.”
Andrea Arrighini
IT Operations
“Based on our experience with Libraesva the past year, I would recommend that all MSP’s put some serious thought into migrating their services to Libraesva; you will not be disappointed.”
Gary Fouchè
Co-owner
“Libraesva captures a very high percentage of bad actors – high nineties percentile.
Our greatest exposure to the outside world is email, but Libraesva takes care of that. We rely on Libraesva.”
Teddy Hazelwood
Chief Information Officer
“Libraesva develops complete, stable products, and maintains them with updates that constantly improve the user experience and functionality.”
Alessio Tarantino
IT Specialist Senior
Exceptional email security
Protect your business communications with award-winning email security.
Insights and updates
See more
Semantic AI: Contextual email threat detection
Semantic AI by Libraesva: the contextual AI email security engine that reads between the lines.
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Semantic AI: Privacy-first email defense
Context-aware email threat detection that catches what others miss.
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Best Email Security Platform in 2025: Why Security Leaders Choose Libraesva
The Search for the Best Email Security Platform
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