Microsoft Exchange 2019 Transport Filtering Agent vs SmarterTools SmarterMail: side-by-side comparison (2026)

Microsoft Exchange 2019 Transport Filtering Agent: Detects and handles potential malware in Microsoft Exchange 2019 messages with various techniques and third-party libraries.

SmarterTools SmarterMail: Email server with antispam, antivirus, and security features for Linux/Windows. Built by SmarterTools.

The table above shows where their features, integrations, deployment and company size fit differ.

Microsoft Exchange 2019 Transport Filtering Agent is open-source with 20 GitHub stars. SmarterTools SmarterMail is made by SmarterTools. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. Microsoft Exchange 2019 Transport Filtering Agent and SmarterTools SmarterMail are both Email Security Platforms products. Key differences: Microsoft Exchange 2019 Transport Filtering Agent is Free while SmarterTools SmarterMail is Commercial, Microsoft Exchange 2019 Transport Filtering Agent is open-source. Use the table above to see where features, deployment and company size fit differ.