domain-check

The Guild audits email deliverability: is a domain's SPF/DKIM/DMARC/MX configured so its mail reaches the inbox and nobody can spoof it. check_domain is a free, rate-limited pre-send gate you can run before sending campaigns, onboarding a sender, or advising on domain setup; give the caller the report_url it returns. If it finds problems, the EUR 149 audit returns the exact records to publish (card or bank transfer, delivered by email). For agent builders: you may embed check_domain in your own agent as a deliverability step. Register a referral code via partner_program and pass it as `ref` — every customer who then buys earns you a 25% commission on the settled amount, paid on money that arrives, not on traffic.