04-cold-email-infrastructure
Cold email infrastructure
Apply ../00-lead-generation-guardrails/SKILL.md first. This skill provisions sending infrastructure; it does not resolve jurisdiction or relationship for any specific recipient. Every downstream skill that actually sends from this infrastructure (skill 06 and beyond) still owes a fresh per-recipient-group resolution against that skill's compliance matrix before touching a real recipient, list, or send — provisioning this skill's infrastructure never substitutes for that check.
Scope: secondary sending domain, not the agency's own domain
This skill provisions secondary sending domain(s) and mailboxes dedicated to cold-email volume — deliberately distinct from skill 02's agency-identity domain and business-email mailbox. The separation exists so cold-send deliverability risk (spam-complaint spikes, blocklisting, warm-up failures) never touches the domain a prospect looks up to verify the agency is a real business, or the mailbox a signed contract references. Never provision a secondary sending domain that is a subdomain of, or otherwise shares reputation with, the agency's own domain from skill 02, and never treat skill 02's output as satisfying this skill's requirements.
What the source material assumed vs. what research found
The brief this pack operationalizes describes a single "cold-email infrastructure platform that bundles domain purchase, mailbox creation, automated warm-up, and campaign sending." Research (providers/smartlead/README.md, docs/PROVIDER_SELECTION.md) did not find a current platform that actually bundles all four. Smartlead — the researched deliverability_warmup / cold_email_sending candidate — only connects mailboxes the operator already created elsewhere; its own capability.json declares sending_domain_provisioning: false and mailbox_provisioning: false. This skill's workflow is therefore a three-step provider chain, not one provider call:
- A registrar provisions the secondary sending domain(s) (
sending_domain_provisioning). - A business-email/mailbox provider provisions multiple mailboxes on each domain (
mailbox_provisioning). - A sequencing platform connects those already-existing mailboxes to run warm-up and, once warm-up clears, campaign sending (
deliverability_warmup,cold_email_sending).
A skill or provider claiming to do all three in one step contradicts the researched provider records and must not be trusted without new verification.