# Consent and the suppression list

> A suppressed address is unreachable by every send path — checked before a send is even proposed.

Section: Marketing · Canonical: https://intubu.intuitivecapital-dai.com/docs/marketing-consent

**Consent is per channel and structural.** Every contact carries email and SMS opt-in with the source and date it was given, so it can be evidenced later.

**The suppression list is global**, and it is checked in the guardrail preflight that every send passes through — not inside each send function, where one of them would eventually forget. A suppressed address is therefore unreachable by a broadcast, a sequence, a one-off and the API alike.

**Addresses are stored lowercased**, so casing cannot smuggle one through.

**Unsubscribing does both halves**: it withdraws consent on the contact *and* adds the global suppression. Either one alone leaves a path by which the person can be mailed again.

**A bulk email with no unsubscribe link is blocked outright.** CAN-SPAM is not optional.

**Before any send**, the proposal states exactly who will receive it and how many were excluded — silent truncation is a lie.