[SOLVED] All was OK but now my project don´t send the mail

My project was run very well, but now dont sen the mail, nothing was modify. what can I do for get well? regards

Should you share the code that everyone can see how it is to go next for the advice?

@oaaguila if you go over the 100 emails per day limit you will incur a temporary block. Could you have gone over the limit?

1 Like

Sure, is next:

#define BLYNK_PRINT Serial    //Comente esto para desactivar impresiones y ahorrar espacio
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

char auth[] = "48220bb4be23492d82a7565b5ffbcbac";

//Datos para la conexion de Red Wifi.
char ssid[] = "Inbursa HQ"; //Nombre de la red WIFI
char pass[] = "5510107539"; //contraseña de la red WIFI

void setup()
  Blynk.begin(auth, ssid, pass);

  Blynk.email("omaraxxxxxxxxxx@hotmail.com","Alarma WiFi", "Proyecto encendido.");
  pinMode(5, INPUT);// pin D1(GPIO5) como entrada
  pinMode(4,OUTPUT);// pin D2(GPIO4) como Salida


void Alarma()

 int Sensor1 = digitalRead(4); // variable para almacenar los estados del PIR
  if (Sensor1 == 1) 
    Blynk.email("omaraxxxxxxxxxx@hotmail.com", "Asunto:", "Luz encendida");

 int Sensor = digitalRead(5); 
  if (Sensor == 0)
    Serial.println("Alarma Activada"); //Imprime por el monitor serial
    Blynk.email("omaraxxxxxxxxx@hotmail.com", "Asunto:", "Alarma activada");
void loop()


Limitations :

  • Maximum allowed email + subject + message length is 120 symbols. However you can increase this limit if necessary by adding #define BLYNK_MAX_SENDBYTES XXX to you sketch. Where XXX is desired max length of your email. For example for ESP you can set this to 1200 max length #define BLYNK_MAX_SENDBYTES 1200. The #define BLYNK_MAX_SENDBYTES 1200 must be included before any of the Blynk includes.
  • Only 1 email per 15 seconds is allowed
  • In case you are using gmail on the Local Server you are limited with 500 mails per day (by google). Other providers may have similar limitations, so please be careful.
  • User is limited with 100 messages per day in the Blynk Cloud;

thank you, I reduce to 60 symbols and now all is working. regards.