Seeking Design Partners for Verified B2B Cold Email Deliverability with LDM Inbox Monitoring System

Joined RevGenius recently and have been reading through the deliverability discussions — there's a real pattern here of "we sent X, we don't know what landed in inbox vs spam". That's the gap I've been building around. LDM is B2B cold email infrastructure that bills only when the message can be verified to have reached the inbox — concurrent seed-cohort monitoring across mailbox providers classifies each message as Inbox, Promotions, or Spam before billing fires. SMTP "250 OK" doesn't trigger a charge anymore. Native MCP server and A2A agent card so AI agents in Claude Desktop or Cursor can run real campaigns without scraping a UI. EU-hosted, GDPR-aligned. Looking for 5-10 design partners running B2B cold outreach at 1k+ sends/month — willing to test the cohort verification approach against their current tool's reported delivery numbers, and feedback me on where the model breaks. Free during the design partner phase. DM if any of that fits.