# Microsoft Exchange 2019 Transport Filtering Agent vs SpamTitan Gateway: side-by-side comparison (2026) [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. [SpamTitan Gateway](https://cybersectools.com/tools/spamtitan-gateway) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [SpamTitan (TitanHQ)](https://cybersectools.com/companies/spamtitan-titanhq). 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 | | Microsoft Exchange 2019 Transport Filtering Agent | SpamTitan Gateway | |---|---|---| | Pricing model | Free | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | On-Premises | Hybrid | | Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | GitHub stars | 20 | – | | Last commit | Aug 2021 | – | | Company | – | SpamTitan (TitanHQ) | | Headquarters | – | – | ### Use cases and capabilities | | Microsoft Exchange 2019 Transport Filtering Agent | SpamTitan Gateway | |---|---|---| | Regex | Yes | – | | Spam Prevention | – | Yes | | Content Filtering | – | Yes | | SPF | – | Yes | | DKIM | – | Yes | | Multi Tenancy | – | Yes | | Gateway | – | Yes | | Active Directory | – | Yes | ### Core features **Microsoft Exchange 2019 Transport Filtering Agent** No features listed. **SpamTitan Gateway** 10 features listed. Sign in on the page to see them. ### Integrations **Microsoft Exchange 2019 Transport Filtering Agent** No integrations listed. **SpamTitan Gateway** 2 integrations listed. Sign in on the page to see them. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [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. - [SpamTitan Gateway](https://cybersectools.com/tools/spamtitan-gateway) fits if you need both cloud and on-premises options. ## Microsoft Exchange 2019 Transport Filtering Agent vs SpamTitan Gateway FAQ Common questions when comparing Microsoft Exchange 2019 Transport Filtering Agent vs SpamTitan Gateway for email security platforms. ### What is the difference between Microsoft Exchange 2019 Transport Filtering Agent and SpamTitan Gateway? **Microsoft Exchange 2019 Transport Filtering Agent**: Detects and handles potential malware in Microsoft Exchange 2019 messages with various techniques and third-party libraries. **SpamTitan Gateway**: Email security gateway appliance for spam/malware filtering and mail flow control. Built by SpamTitan (TitanHQ). The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Microsoft Exchange 2019 Transport Filtering Agent and SpamTitan Gateway? **Microsoft Exchange 2019 Transport Filtering Agent** is open-source with 20 GitHub stars. **SpamTitan Gateway** is made by SpamTitan (TitanHQ). The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Microsoft Exchange 2019 Transport Filtering Agent a good alternative to SpamTitan Gateway? Often, yes. Microsoft Exchange 2019 Transport Filtering Agent and SpamTitan Gateway are both Email Security Platforms products. Key differences: Microsoft Exchange 2019 Transport Filtering Agent is Free while SpamTitan Gateway 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. ## Related comparisons - [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 SmarterTools SmarterMail](https://cybersectools.com/compare/microsoft-exchange-2019-transport-filtering-agent-vs-smartertools-smartermail) - [Microsoft Exchange 2019 Transport Filtering Agent vs MailGuard](https://cybersectools.com/compare/mailguard-vs-microsoft-exchange-2019-transport-filtering-agent) - [SpamTitan Gateway vs MX Layer Outbound Email Filtering](https://cybersectools.com/compare/mx-layer-outbound-email-filtering-vs-spamtitan-gateway) - [SpamTitan Gateway vs SmarterTools SmarterMail](https://cybersectools.com/compare/smartertools-smartermail-vs-spamtitan-gateway) - [SpamTitan Gateway vs MailGuard](https://cybersectools.com/compare/mailguard-vs-spamtitan-gateway) ## Alternatives to each - [See all Microsoft Exchange 2019 Transport Filtering Agent alternatives](https://cybersectools.com/alternatives/microsoft-exchange-2019-transport-filtering-agent) - [See all SpamTitan Gateway alternatives](https://cybersectools.com/alternatives/spamtitan-gateway) --- Source: https://cybersectools.com/compare/microsoft-exchange-2019-transport-filtering-agent-vs-spamtitan-gateway 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/microsoft-exchange-2019-transport-filtering-agent.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Microsoft Exchange 2019 Transport Filtering Agent and SpamTitan Gateway: 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