ESP8266 Arduino SMTPClient test

SMTP_ESP8266.ino

// Download SMTPClient library from https://github.com/gregington/SMTPClient

#include <ESP8266WiFi.h>
#include <Client.h>
#include <Mail.h>
#include <SMTPClient.h>

WiFiClient wifiClient;
SmtpClient client(&wifiClient, "smtp.163.com");

void setup() {
  Serial.begin(115200);
  Serial.setDebugOutput(true);
  delay(100);
  Serial.println();
  Serial.println();
  WiFi.persistent(false);
  WiFi.mode(WIFI_STA);
  WiFi.begin(          ", "         ");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println();
  Serial.println("connected");
  Serial.println("preparing email");
  Mail mail;
  mail.from("Some Sender <[email protected]>");
  mail.replyTo("[email protected]");
  mail.to("Someone <[email protected]>");
  mail.to("Someone Else <[email protected]>");
  mail.cc("Another <[email protected]>");
  mail.bcc("Secret <[email protected]>");
  mail.subject("Hello there");
  mail.body("I can send email from an Arduino!");
  Serial.println("sending email");
  client.send(&mail);  
  Serial.println("email sent");
}

void loop() {

}