Libraesva is an email security platform from LibraCyber combining threat detection, archiving and compliance. Pricing is quote-only, billed per mailbox. Deployed as a cloud service or on-premises appliance.
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Libraesva is an email security gateway from LibraCyber, an Italian cybersecurity vendor headquartered in Lecco with offices in London and North Bend, Washington. The platform combines four core capabilities: semantic AI-powered threat detection and filtering, email archiving and e-discovery for compliance, phishing simulation and training for employee awareness, and DMARC monitoring for brand impersonation protection. Libraesva protects against phishing attacks, business email compromise, ransomware, account takeovers and spoofing attacks using machine learning models that run locally on your infrastructure without transmitting sensitive message data externally to cloud analysis services. The Adaptive Trust Engine monitors organizational communication patterns to detect behavioral anomalies in real time, adjusting SMTP quotas based on historical sender behavior to prevent account takeovers.
Libraesva deploys as a private cloud service hosted by LibraCyber or as an on-premises Email Security Gateway (ESG) appliance running on your hypervisor infrastructure, giving MSPs control over where email processing occurs and data residency. It integrates natively with Microsoft 365, Google Workspace, Microsoft Exchange and Outlook through an Outlook Add-in, which suits organisations already standardised on those platforms. The platform scales to protect 3,500+ customers across approximately 5 million mailboxes globally. Pricing is custom and quote-only, not published on the website; MSPs should request rates directly from LibraCyber based on their typical mailbox count and deployment preference. A 30-day free trial is available without requiring a credit card, allowing hands-on evaluation of threat detection effectiveness and integration with your existing mail infrastructure before committing to a paid subscription. LibraCyber became the merged entity of Libraesva and Cyber Guru in April 2026, combining Libraesva's email security with Cyber Guru's security awareness and training expertise.
Libraesva suits MSPs running Microsoft 365 or Google Workspace who need layered email protection combining gateway filtering with employee phishing awareness training. Consider it if you prefer local processing on your own infrastructure without transmitting message content to cloud-based threat analysis vendors. Pricing is entirely quote-based without published rates, so request a demo and quote for your typical mailbox count before comparing against published-price competitors like Mimecast or Proofpoint Essentials. During trial, confirm Microsoft 365 and Google Workspace integration completeness with your mail flow setup and Outlook Add-in rollout, and verify that DMARC monitoring meets your regulatory compliance requirements. Check data residency options if on-premises processing is critical for your clients.
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|---|---|---|
| Phishing and malware filtering | yes | Semantic AI and Adaptive Trust Engine detect phishing and malware in inbound/outbound emails |
| Spoofing and impersonation protection | yes | LetsDMARC tool monitors and enforces DMARC, SPF, DKIM to prevent domain spoofing and impersonation |
| Email continuity | yes | Email Archiver with compliance-focused data preservation and e-discovery for business continuity |
| Archiving | yes | RFC 3161 timestamped, AES-256 encrypted archives with custom retention rules and legal hold |
| Security awareness training bundle | yes | PhishBrain delivers AI-generated phishing simulations and automated remediation training |
| API-based post-delivery scanning | no | Platform uses local gateway inspection and sandboxing rather than post-delivery cloud API scanning |
| DMARC monitoring | yes | Dedicated LetsDMARC product with observe, monitor and enforce DMARC workflow |
| Attachment sandboxing | yes | Deep inspection and attachment sandboxing in isolated local environments |
| Data loss prevention | unknown | Data loss prevention not explicitly documented in available sources |
| Email encryption | unknown | AES-256 encryption documented for archived emails; end-to-end encryption for messages not confirmed |
| Microsoft 365 integration | yes | Native Microsoft 365 integration with Outlook Add-in, Office 365 connector and journaling |
| Self-service quarantine | unknown | Quarantine capabilities mentioned but self-service user access not explicitly documented |
Libraesva uses custom, quote-based pricing rather than published per-mailbox rates. To obtain pricing, MSPs must complete an inquiry form on the vendor website specifying their approximate mailbox count, deployment preference (on-premises or private cloud) and which products they need (Email Security, Email Archiver, PhishBrain or LetsDMARC). Response times vary by support tier, with Premium Support offering 24-hour telephone access via dedicated number and PIN.
Libraesva offers a free trial lasting 30 days. The trial does not require a credit card to start, allowing MSPs to evaluate the platform's threat detection effectiveness, integration with Microsoft 365 or Google Workspace, and the Outlook Add-in functionality before committing to a paid subscription. After the trial ends, ongoing use requires a paid license.
Libraesva offers both deployment options. Customers can deploy the Email Security Gateway (ESG) appliance on their own hypervisor infrastructure in a fully on-premises model, or use Libraesva's private cloud service where the appliance is hosted by LibraCyber. In the private cloud model, customers retain full administrative control over their virtual machine appliance, similar to on-premises. Libraesva emphasizes that its AI models run locally on the appliance without transmitting message content externally.
Libraesva integrates natively with Microsoft 365. The platform provides an Outlook Add-in for Microsoft 365 users, an Office 365 Connector for mail flow configuration, and Office 365 authentication and journaling support. MSPs can configure domain relay through the Libraesva ESG web interface to direct inbound mail from the Internet to their Microsoft 365 Exchange server, and use the Outlook Add-in to archive emails. Documentation includes detailed guides for setting up these integrations in Microsoft 365 environments.
Libraesva announced a strategic combination with Cyber Guru on 27 January 2026, which completed on 15 April 2026. The two companies merged to form LibraCyber S.p.A., a European cybersecurity company combining Libraesva's email security and threat protection with Cyber Guru's security awareness and training capabilities. The Libraesva product name continues to be used. Paolo Frizzi, the founder of Libraesva, became CEO of the combined group. The company serves 3,500+ customers across approximately 5 million mailboxes.
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