B2B cold email infrastructure. Pay only for verified inbox delivery, not for sending — concurrent seed monitoring classifies each message as Inbox, Promotions, or Spam before billing. Free MCP and A2A for AI agents — first agent-ready cold outreach platform vs Instantly, Smartlead, Lemlist, Apollo. Independent warmup audit, not warmup-as-a-service. EU-hosted. Pay-per-inbox from $0.005 per verified delivery. Sandbox free, no card. Mailbox provider coverage continuously expanded across regions.
Most email tools confirm SMTP delivery but never tell you if your message hit Inbox, Spam, or Promotions.
Enter your email, get 5-7 seed addresses across Gmail, Outlook, Yahoo, Mail.ru and Yandex. Send your test email. See live placement results plus SPF, DKIM and DMARC check with actionable tips.
No signup. No credit card. Results in under 2 minutes.
Built by a B2B cold outreach practitioner with 5+ years in email deliverability.
