# Core Security Cobalt Strike vs mailspoof: side-by-side comparison (2026) [Core Security Cobalt Strike](https://cybersectools.com/tools/core-security-cobalt-strike) is a commercial [red-team & adversary emulation](https://cybersectools.com/categories/offensive-security) solution by [Core Security](https://cybersectools.com/companies/core-security). [mailspoof](https://cybersectools.com/tools/mailspoof) 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. ## Side-by-side comparison | | Core Security Cobalt Strike | mailspoof | |---|---|---| | Pricing model | Commercial | Free | | Category | Red-Team & Adversary Emulation | Email Security Platforms | | Verified | No | No | | Deployment type | On-Premises | On-Premises | | Company size fit | Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise | | GitHub stars | – | 131 | | Last commit | – | Oct 2020 | | Company | Core Security | – | | Headquarters | – | – | ### Use cases and capabilities | | Core Security Cobalt Strike | mailspoof | |---|---|---| | Red Team | Yes | Yes | | Post Exploitation | Yes | – | | C2 | Yes | – | | Evasion | Yes | – | | OSINT | – | Yes | | Spoofing | – | Yes | | DMARC | – | Yes | | SPF | – | Yes | ### Core features **Core Security Cobalt Strike** 6 features listed. Sign in on the page to see them. **mailspoof** No features listed. ### Integrations **Core Security Cobalt Strike** 2 integrations listed. Sign in on the page to see them. **mailspoof** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [mailspoof](https://cybersectools.com/tools/mailspoof) fits if you are a startup or a small business, you need a free product and you want an open-source product. ## Core Security Cobalt Strike vs mailspoof FAQ Common questions when comparing Core Security Cobalt Strike vs mailspoof for red-team & adversary emulation. ### What is the difference between Core Security Cobalt Strike and mailspoof? **Core Security Cobalt Strike**: Post-exploitation threat emulation platform for red team operations. Built by Core Security. **mailspoof**: A command-line tool that analyzes SPF and DMARC records to identify domains vulnerable to email spoofing attacks. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Core Security Cobalt Strike and mailspoof? **Core Security Cobalt Strike** is made by Core Security. **mailspoof** is open-source with 131 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Core Security Cobalt Strike a good alternative to mailspoof? In part. Core Security Cobalt Strike and mailspoof are not in the same category on CybersecTools. Both cover Red Team. Key differences: Core Security Cobalt Strike is Commercial while mailspoof is Free, mailspoof is open-source. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Core Security Cobalt Strike vs Core Security Outflank Security Tooling](https://cybersectools.com/compare/core-security-cobalt-strike-vs-core-security-outflank-security-tooling) - [Core Security Cobalt Strike vs Fortra Cobalt Strike](https://cybersectools.com/compare/core-security-cobalt-strike-vs-fortra-cobalt-strike) - [Core Security Cobalt Strike vs Core Security Bundles and Suites](https://cybersectools.com/compare/core-security-bundles-and-suites-vs-core-security-cobalt-strike) - [mailspoof vs Core Security Outflank Security Tooling](https://cybersectools.com/compare/core-security-outflank-security-tooling-vs-mailspoof) - [mailspoof vs Fortra Cobalt Strike](https://cybersectools.com/compare/fortra-cobalt-strike-vs-mailspoof) - [mailspoof vs Core Security Bundles and Suites](https://cybersectools.com/compare/core-security-bundles-and-suites-vs-mailspoof) ## Alternatives to each - [See all Core Security Cobalt Strike alternatives](https://cybersectools.com/alternatives/core-security-cobalt-strike) - [See all mailspoof alternatives](https://cybersectools.com/alternatives/mailspoof) --- Source: https://cybersectools.com/compare/core-security-cobalt-strike-vs-mailspoof 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/core-security-cobalt-strike.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Core Security Cobalt Strike and mailspoof: 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