Cold email agent: outreach that stops when someone replies
An autonomous agent on EC2 that sources leads, writes a personal opener for each one, sends on a warmed schedule and watches the inbox. A reply pauses the sequence and goes to a human.
HostEC2
Stages5
CloseHuman
An autonomous outreach agent running on EC2 that handles prospecting and email sequencing end to end: sourcing leads, personalizing openers, sending on a warmed schedule, and watching the inbox for replies.
Agent loop
- Prospect sourcing: list building and enrichment filters.
- Personalization: opener drafted per lead from site and profile context.
- Sequencer: warmed schedule, throttled sends, timezone-aware.
- Inbox watcher: reply detection pauses the sequence instantly.
- Handoff: interested replies surfaced for a human to close.
Design notes
- Autonomous: runs unattended on EC2. Sourcing, sending and monitoring without a babysitter.
- Deliverability: warmup ramps and send throttles protect the domain before volume ever scales.
- Stateful: every lead tracked through the funnel. No double-sends, no dropped threads.
Need something like this?
Tell me what you do by hand today. I'll reply within two working days with whether I can help and what I'd build first.