Disable hard bounce menu item

app/src/main/java/eu/faircode/email/FragmentMessages.java

@@ -2439,7 +2439,8 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
                 popupMenu.getMenu().findItem(R.id.menu_reply_to_all).setVisible(recipients.length > 0);
                 popupMenu.getMenu().findItem(R.id.menu_reply_list).setVisible(message.list_post != null);
                 popupMenu.getMenu().findItem(R.id.menu_reply_receipt).setVisible(message.receipt_to != null);
-                popupMenu.getMenu().findItem(R.id.menu_reply_hard_bounce).setVisible(experiments && canBounce);
+                popupMenu.getMenu().findItem(R.id.menu_reply_hard_bounce).setVisible(experiments);
+                popupMenu.getMenu().findItem(R.id.menu_reply_hard_bounce).setEnabled(canBounce);
                 popupMenu.getMenu().findItem(R.id.menu_new_message).setVisible(to != null && to.length > 0);
                 popupMenu.getMenu().findItem(R.id.menu_reply_answer).setVisible(answers != 0 || !ActivityBilling.isPro(context));