OutboundOS – Ai Powered Self-Hosted Outbound Email

OutboundOS is a Next.js outbound workspace: find or import a list, clean it, write a sequence, send from the customer’s own SMTP, and handle the reply. Campaigns never leave from a shared warmup pool or the vendor domain.

Launch stays locked until DNS passes, list bounce risk is under 3%, and every step carries {{unsubscribe_url}}. Bounce above 3% pauses the inbox. A reply cancels remaining sends. Analytics count replies and bounces — there is no open pixel.

Who it is for

• Agencies and founders who already own a domain and inbox
• Teams who want Instantly-style sending without a shared IP pool
• Operators who want to run it self-hosted (/install) or as multi-tenant SaaS (HOSTED=true)

What you get

• ICP — write the buyer down before the list exists
• Inboxes — customer SMTP + IMAP, ramp, send window, daily cap, DNS health
• Lists — CSV import (Apollo, Clay, Instantly, HubSpot, ZoomInfo, Sheets), edit/delete leads, suppression that survives re-import
• Find leads — Hunter first, Prospeo fills misses (BYO keys); optional Apollo fetch with the buyer’s key
• Verify — MX + syntax; MillionVerifier for “inbox exists” when a key is set
• Sequences — wait steps, A/B subjects, required unsubscribe token
• Campaigns — launch lock that says exactly what is blocking
• Inbox — stop-on-reply, OOO re-queue, interested → pipeline
• Pipeline — Meeting / Won / Lost
• Analytics — reply, positive reply, bounce. No opens.
• Operator — workspaces, plans, hosted mode, Super Admin

Hard gates (not settings)

• Bounce pause at 3%
• Sends after a reply: 0
• New inbox ramp starts at 40/day
• Postal address required for compliance copy

Two deploy modes

• Self-hosted — first visit is /install. Local Mailpit for test sends.
• Hosted SaaS — set HOSTED=true. Signup instead of install. Shared workers, isolated workspace data, still their SMTP only.

Stack

• Next.js 16, React 19, TypeScript
• Postgres 16 + Drizzle
• Redis 7 + BullMQ worker (npm run worker must stay up)
• Nodemailer + IMAPFlow