Refactoring

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

@@ -117,6 +117,14 @@ public class ApplicationEx extends Application {
 
         registerReceiver(onScreenOff, new IntentFilter(Intent.ACTION_SCREEN_OFF));
 
+        if (BuildConfig.DEBUG)
+            new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    DnsHelper.test(ApplicationEx.this);
+                }
+            }).start();
+
         long end = new Date().getTime();
         Log.i("App created " + (end - start) + " ms");
     }