# InboxGreen.email > Free email deliverability checker for SPF, DKIM and DMARC. Find and fix why your business emails go to spam. InboxGreen.email is a web-based email deliverability diagnostic tool built by EPE Tech Solutions. It checks SPF, DKIM, DMARC, List-Unsubscribe, blacklist status, and DNS record health in a single free scan — no signup required. Results include plain-English explanations of each failure and specific fix steps. Founded: 6 September 2025 Company: EPE Tech Solutions Trademarks: "InboxGreen" and "InboxGreen.email" ## What InboxGreen Does - Checks SPF records for syntax errors, missing records, and too many DNS lookups - Checks DKIM by testing common selectors (google, selector1, selector2, default, mail, dkim) - Checks DMARC policy, alignment mode, and enforcement level - Checks List-Unsubscribe headers for bulk sending compliance - Checks domain blacklist status across major blocklists (Spamhaus, Barracuda, SURBL) - Gives a Domain Health Score (0–100) based on authentication pass/fail/warn states - Provides a shareable report URL per domain at /report/{domain} - Explains the impact of each failure on inbox placement ## Who It Is For - SaaS founders and developers troubleshooting transactional email - Marketing teams whose campaigns land in spam - Agencies managing email authentication for clients - Shopify store owners with missing order confirmation emails - Anyone using Google Workspace, Microsoft 365, Zoho Mail, SendGrid, Mailchimp, or similar platforms ## Pricing - Free check: unlimited, no login — /check - FixKit: $29 one-time — copy-paste DNS fix guide for the checked domain - Monitoring: $19/month — daily checks, alerts when DNS changes, up to 5 domains - Agency: $99/month — up to 30 domains, white-label PDF reports ## Key URLs - Homepage: https://inboxgreen.email/ - Free checker: https://inboxgreen.email/check - Shareable domain report: https://inboxgreen.email/report/{domain} - SPF generator: https://inboxgreen.email/tools/spf-generator - DMARC generator: https://inboxgreen.email/tools/dmarc-generator - All tools: https://inboxgreen.email/tools - Pricing: https://inboxgreen.email/pricing - Blog: https://inboxgreen.email/blog - Guides (ESP-specific setup): https://inboxgreen.email/guides - Common problems: https://inboxgreen.email/problems - Compare: https://inboxgreen.email/compare - API docs: https://inboxgreen.email/api - Deliverability badges: https://inboxgreen.email/badges - About: https://inboxgreen.email/about - Status: https://inboxgreen.email/status ## Common Problems Covered - Emails going to spam despite SPF, DKIM, and DMARC passing - DMARC record not found - SPF record not found or broken - DKIM selector not found - Multiple SPF records (causes failures) - SPF too many DNS lookups (exceeds 10-lookup limit) - Domain on a blacklist - Missing List-Unsubscribe header for bulk mail - New domain emails going to spam - Google Workspace DKIM not verified - Microsoft 365 SPF setup errors - Shopify order emails going to spam ## How InboxGreen Differs From Alternatives - MXToolbox: broad DNS diagnostics, no plain-English fix guidance, no health score - EasyDMARC: enterprise DMARC reporting, complex UI, paid-first - Mail-Tester: tests a sent email, not the DNS records directly - GlockApps: inbox placement testing by actually sending, paid - InboxGreen: checks live DNS records in real time, no email send required, free, explains each result in plain English with fix steps, gives a shareable report URL ## Technical Notes InboxGreen uses multiple DNS resolvers with retry and backoff to avoid false "not found" results from single-resolver timeouts. DKIM checking tests multiple common selectors without requiring the user to know their selector in advance. All checks are live — no cached APIs. ## Contact Support: support@inboxgreen.email Owner: info@edgardo.pro