outbound-campaign-opslisted

# Outbound Campaign Operations The writing and the list get the attention. The operations decide whether the programme survives its third month. Most outbound failures at scale are operational: a campaign launched to an unverified list, a limit raised because a quarter was ending, three campaigns sharing an inbox and blowing its cap, or a test that ran with two variables changed at once and taught nobody anything. ## The four objects Keeping these separate is what makes outbound manageable past one campaign. ``` Inbox A mailbox you send through. Carries the daily cap, the warmup schedule and the health. Sequence The email steps and timing. Reusable. Campaign Binds one sequence to one inbox. Carries the send window, the daily limit and the tracking settings. Enrollment A lead placed into a campaign. ``` The value of the split is that a sequence that works can be reused across inboxes, segments and clients without being rewritten, and an inbox's health is a property of the inbox rather than of whatever campaign happens to be using it. ## One campaign per segment Never mix segments in a campaign. It's tempting because it's fewer things to manage, and it destroys your ability to learn anything. ``` Campaign: DACH SaaS 20-200 — VP Marketing — hiring signal Campaign: DACH SaaS 20-200 — Founder — funding signal Campaign: UK agencies 5-50 — Owner — no signal ``` Each has its own sequence, its own angle, and its own metrics. When one prod