Watches David's Sent folder every minute and records what he actually sent, so follow-ups are timed correctly.
This is the bridge between David hitting send and the system knowing about it. Without it, follow-up timing would drift.
The moment David sends, the record updates itself - no manual logging, no spreadsheet.
The single source of truth that a real email left David's account - everything downstream keys off it.
Encodes exactly which touch a contact is on so the sequencer knows what to draft next.