diff --git a/convex/machines.ts b/convex/machines.ts
index 8a7fefb..b7b89a8 100644
--- a/convex/machines.ts
+++ b/convex/machines.ts
@@ -349,7 +349,7 @@ async function evaluatePostureAndMaybeRaise(
   const lastAtPrev = ensureFiniteNumber(prevMeta?.["lastPostureAt"]) ?? 0
   await ctx.db.patch(machine._id, { metadata: mergeMetadata(machine.metadata, record), updatedAt: now })
 
-  if ((process.env["MACHINE_ALERTS_CREATE_TICKETS"] ?? "true").toLowerCase() !== "true") return
+  if ((process.env["MACHINE_ALERTS_CREATE_TICKETS"] ?? "false").toLowerCase() !== "true") return
   if (lastAtPrev && now - lastAtPrev < 30 * 60 * 1000) return
 
   const subject = `Alerta de máquina: ${machine.hostname}`
diff --git a/src/components/admin/machines/admin-machines-overview.tsx b/src/components/admin/machines/admin-machines-overview.tsx
index 0f097e2..819f97e 100644
--- a/src/components/admin/machines/admin-machines-overview.tsx
+++ b/src/components/admin/machines/admin-machines-overview.tsx
@@ -534,6 +534,24 @@ const statusClasses: Record<string, string> = {
   unknown: "border-slate-300 bg-slate-200 text-slate-700",
 }
 
+const POSTURE_ALERT_LABELS: Record<string, string> = {
+  CPU_HIGH: "CPU alta",
+  SERVICE_DOWN: "Serviço indisponível",
+  SMART_FAIL: "Falha SMART",
+}
+
+function formatPostureAlertKind(raw?: string | null): string {
+  if (!raw) return "Alerta"
+  const normalized = raw.toUpperCase()
+  if (POSTURE_ALERT_LABELS[normalized]) {
+    return POSTURE_ALERT_LABELS[normalized]
+  }
+  return raw
+    .toLowerCase()
+    .replace(/_/g, " ")
+    .replace(/\b\w/g, (char) => char.toUpperCase())
+}
+
 function formatRelativeTime(date?: Date | null) {
   if (!date) return "Nunca"
   try {
@@ -1833,8 +1851,8 @@ export function MachineDetails({ machine }: MachineDetailsProps) {
                     <div key={`alert-${i}`} className={cn("flex items-center justify-between rounded-md border px-3 py-2 text-sm",
                       (a?.severity ?? "warning").toLowerCase() === "critical" ? "border-rose-500/20 bg-rose-500/10" : "border-amber-500/20 bg-amber-500/10")
                     }>
-                      <span className="font-medium text-foreground">{a?.message ?? a?.kind ?? "Alerta"}</span>
-                      <Badge variant="outline">{String(a?.kind ?? "ALERTA")}</Badge>
+                      <span className="font-medium text-foreground">{a?.message ?? formatPostureAlertKind(a?.kind)}</span>
+                      <Badge variant="outline">{formatPostureAlertKind(a?.kind)}</Badge>
                     </div>
                   ))}
                 </div>