Show HN: I built a free email security checker for small businesses

Category: security

Tags: email-security, dns-checker, small-business

Score: 4.3/10 (Innovation: 3, Technical: 4, Documentation: 5, Utility: 6)

ShieldDesk is a free web-based tool that checks a business domain's email security by analyzing SPF, DMARC, DKIM, and MX DNS records. It targets a clear gap for small businesses needing quick, no-signup email security audits. The project is practical but technically simple and lacks open-source transparency.

Target audience: small business owners, it administrators

Repository: https://shielddeskhq.com/checker

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