# InboxSeguro vs Proofpoint Core Email Protection: 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). [Proofpoint Core Email Protection](https://cybersectools.com/tools/proofpoint-threat-protection) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Proofpoint](https://cybersectools.com/companies/proofpoint). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [Proofpoint Core Email Protection](https://cybersectools.com/tools/proofpoint-threat-protection) Best for: Large companies wanting deep email filtering It earns a place because it goes past filtering into DLP, encryption, archiving and fraud defense from one vendor, which suits a large company that wants to run email security as one program. Archiving and supervision for SEC and FINRA rules matter if you work in financial services. Weigh which parts you really need, because the whole platform is a bigger commitment than a filter. From [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms), Fall 2026. Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). 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 | Proofpoint Core Email Protection | |---|---|---| | 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 | Proofpoint | | Headquarters | – | – | ### Use cases and capabilities | | InboxSeguro | Proofpoint Core Email Protection | |---|---|---| | DMARC | Yes | 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. **Proofpoint Core Email Protection** 10 features listed. Sign in on the page to see them. ### Integrations **InboxSeguro** 18 integrations listed. Sign in on the page to see them. **Proofpoint Core Email Protection** 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. - [InboxSeguro](https://cybersectools.com/tools/inboxseguro) fits if you are a startup. - [Proofpoint Core Email Protection](https://cybersectools.com/tools/proofpoint-threat-protection) fits if you are an enterprise. ## InboxSeguro vs Proofpoint Core Email Protection FAQ Common questions when comparing InboxSeguro vs Proofpoint Core Email Protection for email security platforms. ### What is the difference between InboxSeguro and Proofpoint Core Email Protection? **InboxSeguro**: Domain email-sending monitoring with DMARC/SPF/DKIM inventory, alerts and guided DNS, built by InboxSeguro. **Proofpoint Core Email Protection**: Email security platform with AI-based threat detection and DLP capabilities, built by Proofpoint. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes InboxSeguro and Proofpoint Core Email Protection? **InboxSeguro** is made by InboxSeguro founded in 2026-01-01T00:00:00.000Z. **Proofpoint Core Email Protection** is made by Proofpoint. 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 Proofpoint Core Email Protection? Often, yes. InboxSeguro and Proofpoint Core Email Protection are both Email Security Platforms products, and both cover DMARC. 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) - [Proofpoint Core Email Protection vs Sendmarc DMARC Managed Services](https://cybersectools.com/compare/proofpoint-threat-protection-vs-sendmarc-dmarc-managed-services) - [Proofpoint Core Email Protection vs EasyDMARC Email Auth for Gmail, Yahoo & Microsoft](https://cybersectools.com/compare/easydmarc-email-auth-for-gmail-yahoo-and-microsoft-vs-proofpoint-threat-protection) - [Proofpoint Core Email Protection vs Mimecast DMARC Analyzer](https://cybersectools.com/compare/mimecast-dmarc-analyzer-vs-proofpoint-threat-protection) ## Alternatives to each - [See all InboxSeguro alternatives](https://cybersectools.com/alternatives/inboxseguro) - [See all Proofpoint Core Email Protection alternatives](https://cybersectools.com/alternatives/proofpoint-threat-protection) --- Source: https://cybersectools.com/compare/inboxseguro-vs-proofpoint-threat-protection 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 Proofpoint Core Email Protection: 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