/*
Email client sketch for IDE v1.0.5 and w5100/w5200
Posted 7 May 2015 by SurferTim
*/
#include <SPI.h>
#include <Ethernet.h>
// this must be unique
byte mac[] = { 0x90, 0xA2, 0xDA, 0x00, 0x59, 0x67 };
// change network settings to yours
IPAddress ip( 192, 168, 2, 2 );
IPAddress gateway( 192, 168, 2, 1 );
IPAddress subnet( 255, 255, 255, 0 );
char server[] = "smtpcorp.com";
int port = 2525;
EthernetClient client;
void setup()
{
Serial.begin(115200);
pinMode(4,OUTPUT);
digitalWrite(4,HIGH);
Ethernet.begin(mac, ip, gateway, gateway, subnet);
delay(2000);
Serial.println(F("Ready. Press 'e' to send."));
}
void loop()
{
byte inChar;
inChar = Serial.read();
if(inChar == 'e')
{
if(sendEmail()) Serial.println(F("Email sent"));
else Serial.println(F("Email failed"));
}
}
byte sendEmail()
{
byte thisByte = 0;
byte respCode;
if(client.connect(server,port) == 1) {
Serial.println(F("connected"));
} else {
Serial.println(F("connection failed"));
return 0;
}
if(!eRcv()) return 0;
Serial.println(F("Sending hello"));
// replace 1.2.3.4 with your Arduino's ip
client.println("EHLO 1.2.3.4");
if(!eRcv()) return 0;
Serial.println(F("Sending auth login"));
client.println("auth login");
if(!eRcv()) return 0;
Serial.println(F("Sending User"));
// Change to your base64 encoded user
client.println("xxxx");
if(!eRcv()) return 0;
Serial.println(F("Sending Password"));
// change to your base64 encoded password
client.println("yyyy");
if(!eRcv()) return 0;
// change to your email address (sender)
Serial.println(F("Sending From"));
client.println("MAIL From: <me@mydomain.com>");
if(!eRcv()) return 0;
// change to recipient address
Serial.println(F("Sending To"));
client.println("RCPT To: <you@yourdomain.com>");
if(!eRcv()) return 0;
Serial.println(F("Sending DATA"));
client.println("DATA");
if(!eRcv()) return 0;
Serial.println(F("Sending email"));
// change to recipient address
client.println("To: You <you@yourdomain.com>");
// change to your address
client.println("From: Me <me@mydomain.com>");
client.println("Subject: Arduino email test\r\n");
client.println("This is from my Arduino!");
client.println(".");
if(!eRcv()) return 0;
Serial.println(F("Sending QUIT"));
client.println("QUIT");
if(!eRcv()) return 0;
client.stop();
Serial.println(F("disconnected"));
return 1;
}
byte eRcv()
{
byte respCode;
byte thisByte;
int loopCount = 0;
while(!client.available()) {
delay(1);
loopCount++;
// if nothing received for 10 seconds, timeout
if(loopCount > 10000) {
client.stop();
Serial.println(F("\r\nTimeout"));
return 0;
}
}
respCode = client.peek();
while(client.available())
{
thisByte = client.read();
Serial.write(thisByte);
}
if(respCode >= '4')
{
efail();
return 0;
}
return 1;
}
void efail()
{
byte thisByte = 0;
int loopCount = 0;
client.println(F("QUIT"));
while(!client.available()) {
delay(1);
loopCount++;
// if nothing received for 10 seconds, timeout
if(loopCount > 10000) {
client.stop();
Serial.println(F("\r\nTimeout"));
return;
}
}
while(client.available())
{
thisByte = client.read();
Serial.write(thisByte);
}
client.stop();
Serial.println(F("disconnected"));
}