diff --git a/docs/superpowers/plans/2026-06-26-email-templates-brand-hygiene.md b/docs/superpowers/plans/2026-06-26-email-templates-brand-hygiene.md
index 0d2168b..ea04626 100644
--- a/docs/superpowers/plans/2026-06-26-email-templates-brand-hygiene.md
+++ b/docs/superpowers/plans/2026-06-26-email-templates-brand-hygiene.md
@@ -650,7 +650,7 @@ The reskin is not an anti-spam fix; record what templates can't touch so it isn'
 **Files:**
 - Modify: `email/README.md` (append a short "Deliverability — out of scope (ops)" section)
 
-- [ ] **Step 1: Append the ops section**
+- [x] **Step 1: Append the ops section**
 
 ```markdown
 ## Deliverability — out of scope for these templates (ops/mail layer)
@@ -665,7 +665,7 @@ mistaken for a complete anti-spam fix:
 - A dedicated sending domain/subdomain and IP warm-up if volume grows.
 ```
 
-- [ ] **Step 2: Commit**
+- [x] **Step 2: Commit**
 
 ```bash
 git add email/README.md
diff --git a/email/README.md b/email/README.md
index 4da94d7..ae3f6f4 100644
--- a/email/README.md
+++ b/email/README.md
@@ -71,6 +71,17 @@ and ends with `<!-- IMPORT emails/partials/footer.html -->`.
   and `<!-- preheader -->` marker in each `email/*.html` file.
 - Rebuild (`./nodebb build`) and use the ACP test-email button to verify.
 
+## Deliverability — out of scope for these templates (ops/mail layer)
+
+Templates cannot affect these; they are flagged so the brand reskin is not
+mistaken for a complete anti-spam fix:
+
+- **SPF / DKIM / DMARC** records + alignment for the sending domain.
+- A From-address on a domain with sending reputation (not a bare/shared host).
+- `List-Unsubscribe` / `List-Unsubscribe-Post` (one-click) **headers** — set by
+  the mail layer, distinct from the in-body unsubscribe link the footer renders.
+- A dedicated sending domain/subdomain and IP warm-up if volume grows.
+
 ## References
 
 - [NodeBB themes](https://docs.nodebb.org/development/themes/)