diff --git a/Eqn.Sender/Controllers/fbmsController.cs b/Eqn.Sender/Controllers/fbmsController.cs
index fb1efaa..f13ddf4 100644
--- a/Eqn.Sender/Controllers/fbmsController.cs
+++ b/Eqn.Sender/Controllers/fbmsController.cs
@@ -61,17 +61,17 @@ namespace Eqn.Sender.Controllers
 #endif
 
         [HttpPost("sendAndroid")]
-        public async Task<string> SendAndroid([FromBody] MsgPayload rawData, bool fullReturn = false, int maxToken = 499, int numParall = 4, bool dryRun = false)
+        public async Task<string> SendAndroid([FromBody] MsgPayload rawData, bool fullReturn = false, bool doDelay = true, int maxToken = 499, int numParall = 4, bool dryRun = false)
         {
-            string answ = await DoSend(rawData, fullReturn, true, maxToken, numParall, dryRun);
+            string answ = await DoSend(rawData, fullReturn, doDelay, true, maxToken, numParall, dryRun);
             // restituisco esito...
             return answ;
         }
 
         [HttpPost("sendIOS")]
-        public async Task<string> SendIOS([FromBody] MsgPayload rawData, bool fullReturn = false, int maxToken = 499, int numParall = 4, bool dryRun = false)
+        public async Task<string> SendIOS([FromBody] MsgPayload rawData, bool fullReturn = false, bool doDelay = true, int maxToken = 499, int numParall = 4, bool dryRun = false)
         {
-            string answ = await DoSend(rawData, fullReturn, false, maxToken, numParall, dryRun);
+            string answ = await DoSend(rawData, fullReturn, doDelay, false, maxToken, numParall, dryRun);
             // restituisco esito...
             return answ;
         }
@@ -157,12 +157,13 @@ namespace Eqn.Sender.Controllers
         /// </summary>
         /// <param name="rawData">Dati payload</param>
         /// <param name="fullReturn">Indica se ritornare per intero il messaggio firebase</param>
+        /// <param name="doDelay">Indica se mettere delay causale 15-25 ms tra ogni send (deault true)</param>
         /// <param name="isAndroid">Booleano: true = Android / false=iOS</param>
         /// <param name="maxToken">Num max di token x singolo invio FireBase</param>
         /// <param name="numParall">Parallelismo send ammesso</param>
         /// <param name="dryRun">Se true fa solo SIMULAZIONE invio</param>
         /// <returns></returns>
-        private async Task<string> DoSend(MsgPayload rawData, bool fullReturn, bool isAndroid, int maxToken, int numParall, bool dryRun)
+        private async Task<string> DoSend(MsgPayload rawData, bool fullReturn, bool doDelay, bool isAndroid, int maxToken, int numParall, bool dryRun)
         {
             string answ = "";
             //limito a 499 se anche me ne richiedesse di +...
@@ -173,6 +174,7 @@ namespace Eqn.Sender.Controllers
             int numOk = 0;
             int numErr = 0;
             int numResp = 0;
+            Random rnd = new Random();
             // preparo statistiche invio
             ConcurrentBag<BStatData> elapsedTime = new ConcurrentBag<BStatData>();
             // preparare vera lista invio (multi messaggio)
@@ -243,6 +245,10 @@ namespace Eqn.Sender.Controllers
                 var options = new ParallelOptions { MaxDegreeOfParallelism = numParall };
                 await Parallel.ForEachAsync(messageList, async (message, token) =>
                 {
+                    if (doDelay)
+                    {
+                        await Task.Delay(rnd.Next(15, 25));
+                    }
                     Stopwatch lsw = new Stopwatch();
                     var currData = new BStatData();
                     lsw.Start();
@@ -258,6 +264,10 @@ namespace Eqn.Sender.Controllers
             {
                 foreach (var item in messageList)
                 {
+                    if (doDelay)
+                    {
+                        await Task.Delay(rnd.Next(15, 25));
+                    }
                     Stopwatch lsw = new Stopwatch();
                     var currData = new BStatData();
                     lsw.Start();