Sales & Outreach Infrastructure
Your own sales machine. Every component self-hosted and owned.
Custom email infrastructure, ML lead scoring, campaign orchestration, enrichment pipelines, and CRM systems. We built and operate a 90-inbox cold outreach system generating 500 personalized campaigns per batch with Anthropic-powered copy. Same architecture is yours.
500+
Personalized campaigns generated per batch
90+
Managed sending inboxes in production
3 to 5x
Lower cost vs equivalent SaaS tooling
CAPABILITIES
What we build
01
Email infrastructure
Custom sending infrastructure on Google Workspace with per-inbox warmup schedules, daily volume caps (30 to 50 per inbox), reply detection, and SPF/DKIM/DMARC configured for each domain. No per-email pricing. No deliverability black box. We own every sending credential.
02
ML-powered lead scoring
Composite scoring model combining static firmographic signals (revenue band, headcount, funding stage, tech stack) with behavioral signals (email opens, clicks, site visits) and enrichment from public sources. Scoring weights are calibrated against your actual conversion history, not a generic B2B dataset.
03
Campaign management and personalization
Sequence engine with multi-step cadences, reply detection that pauses the sequence on response, and per-prospect personalization generated by fetching the prospect's site and passing it through an Anthropic prompt. 500 personalized drafts per batch run in under 20 minutes.
04
Enrichment pipeline
Self-built enrichment that pulls from LinkedIn public data, SEC EDGAR filings, Crunchbase free tier, and company websites. No Apollo, no ZoomInfo per-seat fees. Lead data is stored in ClickHouse and scored on ingest so your outreach queue is always ranked.
APPLICATIONS
Where this applies
- 01Cold outreach system for a B2B agency. 90 Gmail inboxes, 30 to 50 sends per inbox per day, 4-step sequences with reply detection. Built in 2 weeks. Monthly platform cost: $39 for Smartlead warmup versus $800/mo for equivalent Instantly plus Apollo seats.
- 02Lead scoring model trained on 3,889 historical conversions. Gradient-boosted classifier combining firmographic, technographic, and engagement features. Top-decile leads converted at 3.2x the rate of unscored leads in the first 90-day deployment window.
- 03Personalized outreach at scale. 500 marketing agency leads with Anthropic-generated personalized pitches based on each company's actual website content. 353 high-confidence campaigns, 147 fallback template campaigns. Stored in ClickHouse, ready for approval before any send.
- 04CRM built around a services sales process. Not Salesforce with custom fields. A custom Next.js CRM where pipeline stages, proposal generation, contract templates, and Stripe invoice creation are wired together into one workflow that mirrors how the firm actually closes deals.
DELIVERABILITY
Inbox warmup and deliverability runbook
Sending volume on a cold inbox is a slow ramp. We follow a documented warmup schedule, monitor reply rate and complaint rate per inbox, and pause any inbox that breaks a threshold. The rules are encoded so an operator does not have to remember them.
| Week | Daily volume per inbox | Recipient mix | Hold threshold |
|---|---|---|---|
| 1 to 2 | 5 to 10 | 100% warmup network | Spam rate > 3%, pause inbox. |
| 3 to 4 | 10 to 20 | 70% warmup, 30% real | Bounce rate > 5%, pause inbox. |
| 5 to 6 | 20 to 35 | 50% warmup, 50% real | Reply rate < 1%, slow ramp. |
| 7+ | 30 to 50 | 30% warmup, 70% real | Domain blocklist hit, halt domain. |
| Steady state | 30 to 50 max | 20% warmup, 80% real | Inbox placement < 80%, ramp down. |
METRICS
By the numbers
500+
Personalized campaigns per batch
90+
Managed inboxes in production
100%
Infrastructure and data ownership
3 to 5x
Cost reduction vs SaaS stack
TECHNOLOGY
Tech stack
PROCESS
How we deliver
Every engagement follows the same three phases. No surprises, no scope creep.
Lead Source Mapping + Scoring Model
We audit your existing data sources, define the ICP, and build a scoring model grounded in firmographic and behavioral signals rather than manual gut-checks.
Enrichment + Sequence Engine Build
Automated enrichment pipeline and personalization logic built against your lead data. Sequences, follow-up triggers, and reply detection wired to your outbox.
Deploy + Deliverability Handoff
Infrastructure live with SPF, DKIM, DMARC, and inbox warm-up configured. Analytics dashboard and full source code transferred. No ongoing vendor dependency.
GET STARTED
Ready to build?
Most projects ship in 2 to 4 weeks. Fixed price. Full IP transfer.