# MailGuard vs Microsoft Exchange 2019 Transport Filtering Agent: side-by-side comparison (2026) [MailGuard](https://cybersectools.com/tools/mailguard) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [MailGuard](https://cybersectools.com/companies/mailguard). [Microsoft Exchange 2019 Transport Filtering Agent](https://cybersectools.com/tools/microsoft-exchange-2019-transport-filtering-agent) is a free [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution. Features, integrations, deployment and the company behind each one, side by side. Need the answer fast? [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms) picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more. ## Side-by-side comparison | | MailGuard | Microsoft Exchange 2019 Transport Filtering Agent | |---|---|---| | Pricing model | Commercial | Free | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | Cloud | On-Premises | | Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | GitHub stars | – | 20 | | Last commit | – | Aug 2021 | | Company | MailGuard | – | | Headquarters | – | – | ### Use cases and capabilities | | MailGuard | Microsoft Exchange 2019 Transport Filtering Agent | |---|---|---| | Spam Prevention | Yes | – | | Ransomware Prevention | Yes | – | | SPF | Yes | – | | DKIM | Yes | – | | Regex | – | Yes | ### Core features **MailGuard** 10 features listed. Sign in on the page to see them. **Microsoft Exchange 2019 Transport Filtering Agent** No features listed. ### Integrations **MailGuard** 3 integrations listed. Sign in on the page to see them. **Microsoft Exchange 2019 Transport Filtering Agent** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [MailGuard](https://cybersectools.com/tools/mailguard) fits if you want a cloud product. - [Microsoft Exchange 2019 Transport Filtering Agent](https://cybersectools.com/tools/microsoft-exchange-2019-transport-filtering-agent) fits if you need to run it on your own servers, you need a free product and you want an open-source product. ## MailGuard vs Microsoft Exchange 2019 Transport Filtering Agent FAQ Common questions when comparing MailGuard vs Microsoft Exchange 2019 Transport Filtering Agent for email security platforms. ### What is the difference between MailGuard and Microsoft Exchange 2019 Transport Filtering Agent? **MailGuard**: Cloud-based managed email filtering against phishing, ransomware & BEC. Built by MailGuard. **Microsoft Exchange 2019 Transport Filtering Agent**: Detects and handles potential malware in Microsoft Exchange 2019 messages with various techniques and third-party libraries. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes MailGuard and Microsoft Exchange 2019 Transport Filtering Agent? **MailGuard** is made by MailGuard. **Microsoft Exchange 2019 Transport Filtering Agent** is open-source with 20 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is MailGuard a good alternative to Microsoft Exchange 2019 Transport Filtering Agent? Often, yes. MailGuard and Microsoft Exchange 2019 Transport Filtering Agent are both Email Security Platforms products. Key differences: MailGuard is Commercial while Microsoft Exchange 2019 Transport Filtering Agent is Free, Microsoft Exchange 2019 Transport Filtering Agent is open-source. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [MailGuard vs SmarterTools SmarterMail](https://cybersectools.com/compare/mailguard-vs-smartertools-smartermail) - [MailGuard vs MX Layer Outbound Email Filtering](https://cybersectools.com/compare/mailguard-vs-mx-layer-outbound-email-filtering) - [MailGuard vs SpamExperts Incoming Email Filtering](https://cybersectools.com/compare/mailguard-vs-spamexperts-incoming-email-filtering) - [Microsoft Exchange 2019 Transport Filtering Agent vs SmarterTools SmarterMail](https://cybersectools.com/compare/microsoft-exchange-2019-transport-filtering-agent-vs-smartertools-smartermail) - [Microsoft Exchange 2019 Transport Filtering Agent vs MX Layer Outbound Email Filtering](https://cybersectools.com/compare/microsoft-exchange-2019-transport-filtering-agent-vs-mx-layer-outbound-email-filtering) - [Microsoft Exchange 2019 Transport Filtering Agent vs SpamExperts Incoming Email Filtering](https://cybersectools.com/compare/microsoft-exchange-2019-transport-filtering-agent-vs-spamexperts-incoming-email-filtering) ## Alternatives to each - [See all MailGuard alternatives](https://cybersectools.com/alternatives/mailguard) - [See all Microsoft Exchange 2019 Transport Filtering Agent alternatives](https://cybersectools.com/alternatives/microsoft-exchange-2019-transport-filtering-agent) --- Source: https://cybersectools.com/compare/mailguard-vs-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. Each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/mailguard.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on MailGuard and 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=compare-md