Email security platform filtering inbound and outbound email for threats and policy violations.
A Secure Email Gateway (SEG) is a security platform positioned between the internet and email servers, filtering all inbound and outbound email. SEGs provide spam filtering, malware detection, phishing protection, data loss prevention, and encryption. They analyse email content, attachments, and links for threats. SEGs can be on-premises appliances, cloud services, or hybrid. Microsoft Defender for Office 365 provides SEG capabilities for Microsoft 365; standalone solutions include Proofpoint and Mimecast.
Why It Matters
The DSC Perspective:
SEGs provide comprehensive email protection. For Microsoft 365 environments, Defender for Office 365 offers integrated protection. Ensure your email has gateway-level security, not just basic filtering.