diff --git a/setup-base.sh b/setup-base.sh
index cac99a1..bbe2ea2 100755
--- a/setup-base.sh
+++ b/setup-base.sh
@@ -298,6 +298,14 @@ systemctl disable systemd-networkd-wait-online.service 2>/dev/null || true
 systemctl enable NetworkManager-wait-online.service 2>/dev/null || true
 ok "NetworkManager als Netzwerk-Renderer"
 
+# /etc/hosts: Synology DiskStation im LAN (fuer Thunderbird/MailPlus etc.)
+if ! grep -q "dsm.motocamp.de" /etc/hosts; then
+    echo "10.47.11.10 dsm.motocamp.de" >> /etc/hosts
+    ok "/etc/hosts: dsm.motocamp.de"
+else
+    ok "/etc/hosts: dsm.motocamp.de (bereits vorhanden)"
+fi
+
 # ── 10. Energieeinstellungen & Lokalisierung ─────────────────────────────
 echo -e "\n=== 10/11 Energie & Lokalisierung ==="