Email Data Loss Prevention (DLP) is a security solution that helps organizations prevent sensitive information from being accidentally or intentionally shared through email.
Email DLP works by automatically scanning outgoing messages and attachments for confidential data such as personally identifiable information (PII), financial records, healthcare information, customer data, or intellectual property. Detection is based on predefined or custom policies using techniques like pattern matching, keyword dictionaries, regular expressions, and data classification labels.
When a policy violation is detected, the system can take actions such as warning the sender, encrypting the message, quarantining the email for review, or blocking it from being sent entirely.
Modern email DLP solutions integrate with platforms like Microsoft 365, Google Workspace, and secure email gateways to protect data across cloud and on-premises environments.
By implementing email DLP, organizations can reduce the risk of data breaches, meet compliance requirements such as GDPR, HIPAA, and PCI DSS, improve visibility into sensitive data movement, and strengthen their overall cybersecurity posture without significantly impacting employee productivity.
