diff --git a/REPORT.md b/REPORT.md
index b4904a0..c5cf9d9 100644
--- a/REPORT.md
+++ b/REPORT.md
@@ -28,6 +28,10 @@ An empty `SMTP_HOST` (toggle off) leaves the app's mail disabled.
 - Field names match the controller's `stacks.SMTPMapping` struct tags exactly (covered by the controller's
   `TestMetadata_SMTPMappingParse` and the Vaultwarden/Mealie env-injection tests).
 - Git sync picks up the change within ~15 min (or via "Sablonok frissítése").
+- The end-to-end relay path these mappings feed (app → on-box shim → hub → Resend) was live-validated on
+  guest 9201 / hub v0.18.0 on 2026-06-29 with a Vaultwarden-shaped message (From `vaultwarden@felhom.eu`,
+  inline CID image) → Resend `250 queued`; see `felhom-controller/REPORT.md`. Deploying the Vaultwarden app and
+  using its admin "send test email" is the recommended final smoke for the app's own SMTP client (spike-proven).
 
 ## Notes / deviation
 - **Mealie uses plaintext (NONE), not STARTTLS.** Mealie has no accept-invalid-cert option, so STARTTLS to the