# InboxSeguro vs ThreatDown Email Security: side-by-side comparison (2026) [InboxSeguro](https://cybersectools.com/tools/inboxseguro) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [InboxSeguro](https://cybersectools.com/companies/inboxseguro). [ThreatDown Email Security](https://cybersectools.com/tools/threatdown-email-security) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [ThreatDown by Malwarebytes](https://cybersectools.com/companies/threatdown-by-malwarebytes). 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 | | InboxSeguro | ThreatDown Email Security | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | SMB, Mid-Market, Startup | SMB, Mid-Market, Enterprise | | Company | InboxSeguro | ThreatDown by Malwarebytes | | Headquarters | – | – | ### Use cases and capabilities | | InboxSeguro | ThreatDown Email Security | |---|---|---| | DMARC | Yes | – | | SPF | Yes | – | | DKIM | Yes | – | | Spoofing | Yes | – | | DNS Security | Yes | – | | Alerting | Yes | – | | Inventory | Yes | – | | Security Reporting | Yes | – | ### Core features **InboxSeguro** 10 features listed. Sign in on the page to see them. **ThreatDown Email Security** 8 features listed. Sign in on the page to see them. ### Integrations **InboxSeguro** 18 integrations listed. Sign in on the page to see them. **ThreatDown Email Security** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [InboxSeguro](https://cybersectools.com/tools/inboxseguro) fits if you are a startup. - [ThreatDown Email Security](https://cybersectools.com/tools/threatdown-email-security) fits if you are an enterprise. ## InboxSeguro vs ThreatDown Email Security FAQ Common questions when comparing InboxSeguro vs ThreatDown Email Security for email security platforms. ### What is the difference between InboxSeguro and ThreatDown Email Security? **InboxSeguro**: Domain email-sending monitoring with DMARC/SPF/DKIM inventory, alerts and guided DNS, built by InboxSeguro. **ThreatDown Email Security**: AI-powered email security platform for phishing and BEC protection, built by ThreatDown by Malwarebytes. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes InboxSeguro and ThreatDown Email Security? **InboxSeguro** is made by InboxSeguro founded in 2026-01-01T00:00:00.000Z. **ThreatDown Email Security** is made by ThreatDown by Malwarebytes. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is InboxSeguro a good alternative to ThreatDown Email Security? Often, yes. InboxSeguro and ThreatDown Email Security are both Email Security Platforms products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [InboxSeguro vs Sendmarc DMARC Managed Services](https://cybersectools.com/compare/inboxseguro-vs-sendmarc-dmarc-managed-services) - [InboxSeguro vs EasyDMARC Email Auth for Gmail, Yahoo & Microsoft](https://cybersectools.com/compare/easydmarc-email-auth-for-gmail-yahoo-and-microsoft-vs-inboxseguro) - [InboxSeguro vs Mimecast DMARC Analyzer](https://cybersectools.com/compare/inboxseguro-vs-mimecast-dmarc-analyzer) - [ThreatDown Email Security vs Sendmarc DMARC Managed Services](https://cybersectools.com/compare/sendmarc-dmarc-managed-services-vs-threatdown-email-security) - [ThreatDown Email Security vs EasyDMARC Email Auth for Gmail, Yahoo & Microsoft](https://cybersectools.com/compare/easydmarc-email-auth-for-gmail-yahoo-and-microsoft-vs-threatdown-email-security) - [ThreatDown Email Security vs Mimecast DMARC Analyzer](https://cybersectools.com/compare/mimecast-dmarc-analyzer-vs-threatdown-email-security) ## Alternatives to each - [See all InboxSeguro alternatives](https://cybersectools.com/alternatives/inboxseguro) - [See all ThreatDown Email Security alternatives](https://cybersectools.com/alternatives/threatdown-email-security) --- Source: https://cybersectools.com/compare/inboxseguro-vs-threatdown-email-security For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/inboxseguro.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on InboxSeguro and ThreatDown Email Security: 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