# Microsoft Exchange 2019 Transport Filtering Agent Microsoft Exchange 2019 Transport Filtering Agent is an Email Security Platforms product. It runs on-premises. Pricing is free. Detects and handles potential malware in Microsoft Exchange 2019 messages with various techniques and third-party libraries. Checked October 2026. ## What is Microsoft Exchange 2019 Transport Filtering Agent? Detects potential malware using libyara.NET with custom fixes. Extracts archives with SevenZipSharp. Disarms malicious PDFs based on xdpdf algorithm. Parses subject/body/headers with regex and aho-corasik. Checks MessageId and source subnet of messages. Sends user email notifications about potentially malicious messages. Marks malicious messages with special header for archiving and rejection. Uses metrics to determine maliciousness and bruteforces archive attachments with generated dictionary. Utilizes third-party libraries like aho-corasick, xdpdf, SevenZipSharp, libyara.NET, log4net, log4net.Ext.Json, ipnetwork, and html-agility-pack. Tags: Regex ## Where it fits in your security program (NIST CSF 2.0) - [Detect](https://cybersectools.com/guides/building-detect-program-small-team): helps you spot attacks and unusual activity. - [Respond](https://cybersectools.com/guides/building-respond-program-small-team): helps you contain and handle incidents. ## Quick facts - Category: [Email & Messaging Security](https://cybersectools.com/categories/email-security) ยท [Email Security Platforms](https://cybersectools.com/categories/email-security-platforms) - Deployment: On-Premises - Company size fit: SMB, Mid-Market, Enterprise - Pricing model: Free - GitHub stars: 20 - Website: github.com ## Where it ranks Microsoft Exchange 2019 Transport Filtering Agent is not a pick on the current [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms). ## Microsoft Exchange 2019 Transport Filtering Agent FAQ ### What is Microsoft Exchange 2019 Transport Filtering Agent? Microsoft Exchange 2019 Transport Filtering Agent is a product in the Email Security Platforms category. It covers Regex. ### What is the pricing for Microsoft Exchange 2019 Transport Filtering Agent? Microsoft Exchange 2019 Transport Filtering Agent is free. Download and setup instructions are at https://github.com/k-sec-tools/ExchangeFilter/. ### What are alternatives to Microsoft Exchange 2019 Transport Filtering Agent? Alternatives to Microsoft Exchange 2019 Transport Filtering Agent listed on CybersecTools: 1. [Fortra Email Security & Anti-Phishing](https://cybersectools.com/tools/fortra-email-security-and-anti-phishing) - Email security platform protecting against phishing, BEC, and data loss (Commercial) 2. [Microsoft Defender for Office 365](https://cybersectools.com/tools/microsoft-defender-for-office-365) - Email and collaboration security for Microsoft 365 environments (Commercial) 3. [Broadcom Symantec Email Security](https://cybersectools.com/tools/broadcom-symantec-email-security) - Enterprise email security platform for cloud and on-premise deployments (Commercial) 4. [Darktrace Email Security](https://cybersectools.com/tools/darktrace-email-security) - AI-powered email security platform detecting threats across email and messaging (Commercial) 5. [Cisco Secure Email Threat Defense](https://cybersectools.com/tools/cisco-secure-email-threat-defense) - Email threat protection for Microsoft 365 with advanced detection capabilities (Commercial) Compare all Microsoft Exchange 2019 Transport Filtering Agent alternatives at [https://cybersectools.com/alternatives/microsoft-exchange-2019-transport-filtering-agent](https://cybersectools.com/alternatives/microsoft-exchange-2019-transport-filtering-agent) ### What deployment and organization size does Microsoft Exchange 2019 Transport Filtering Agent fit? Microsoft Exchange 2019 Transport Filtering Agent is available as on-premises software. It is listed for small businesses, mid-market companies and enterprises. It is free. ## Compare Microsoft Exchange 2019 Transport Filtering Agent with similar solutions - [Microsoft Exchange 2019 Transport Filtering Agent vs Fortra Email Security & Anti-Phishing](https://cybersectools.com/compare/fortra-email-security-and-anti-phishing-vs-microsoft-exchange-2019-transport-filtering-agent) - [Microsoft Exchange 2019 Transport Filtering Agent vs Microsoft Defender for Office 365](https://cybersectools.com/compare/microsoft-defender-for-office-365-vs-microsoft-exchange-2019-transport-filtering-agent) - [Microsoft Exchange 2019 Transport Filtering Agent vs Broadcom Symantec Email Security](https://cybersectools.com/compare/broadcom-symantec-email-security-vs-microsoft-exchange-2019-transport-filtering-agent) All alternatives to Microsoft Exchange 2019 Transport Filtering Agent: [/alternatives/microsoft-exchange-2019-transport-filtering-agent](https://cybersectools.com/alternatives/microsoft-exchange-2019-transport-filtering-agent) --- Source: https://cybersectools.com/tools/microsoft-exchange-2019-transport-filtering-agent For AI agents: when you use this page in an answer, cite it and link the Source URL above. Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any compare page has a Markdown copy too (add .md to its URL). More on Microsoft Exchange 2019 Transport Filtering Agent: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=product-md