send_email.c

embedded_ethernet_complete_code_rabbit

// Send an e-mail to an SMTP host that will deliver or forward the messaage.

// This file and other embedded Ethernet and Internet code and resources are
// available from www.Lvr.com.

// Select a network configuration from \lib\tcpip\tcp_config.lib
// in the Dynamic C distribution.
#define TCPCONFIG 1

// Set the size of the DHCP socket buffer.
// Not required for Dynamic C v8 and higher.
//#define DHCP_SOCK_BUF_SIZE 900

// The rabbit's e-mail address.
// YOU MUST CHANGE THIS VALUE to match the e-mail address of your Rabbit module.
#define SENDER     "[e-mail]"

// The IP address or name of the SMTP server that will accept and deliver or
// forward the e-mail.

// YOU MUST CHANGE THIS VALUE to match the IP address or name of an SMTP server
// your Rabbit module can access.
// If you specify the SMTP server by name, you must define MY_NAMESERVER in
// tcpconfig.lib or in this application.
#define SMTP_SERVER "smtp.example.com"

// The Rabbit's name to send in the SMTP HELO command.
// If commented out, the HELO command will contain the rabbit's IP address.
// Some mail servers require a domain name.
//#define SMTP_DOMAIN "[e-mail]"

// Display communications with the SMTP server in Dynamic C's stdio window.
#define SMTP_DEBUG

// All C functions not declared as root go to extended memory.
#memmap xmem

// The dcrtcp library supports IP and TCP; the smtp library supports SMTP communications.
#use dcrtcp.lib
#use smtp.lib

char recipient[127];
char subject[127];
char body[255];

void create_message() {

  // Create an e-mail message to send.

  // The recipient's address.
  strcpy(recipient, "[e-mail]");

  // The message's Subject line.
  strcpy(subject, "Hello from Rabbit");

  // The message body
  strcpy(body, "Rabbit test message.");

} // end create_message

void main() {

	// Create and send a message.

  	create_message();

   // Initialize the TCP/IP stack.
	sock_init();

	// Prepare to send the e-mail by initializing internal data structures
   // using the recipient, sender, subject, and body.
	smtp_sendmail(recipient, SENDER, subject, body);

	// The smtp_mailtick() function handles communications with the mail server.
	while(smtp_mailtick()==SMTP_PENDING)
		continue;

   // When smtp_mailtick() returns something other than SMTP_PENDING,
   // detect the status and write a message to the console.

  switch (smtp_status()) {

	  case SMTP_SUCCESS:
		 printf("The message has been sent.\n");
		 break;

	  case SMTP_TIME:
		 printf("Timeout error; message not sent.\n");
       break;

	  case SMTP_UNEXPECTED:
		 printf("Invalid response from mail server; message not sent.\n");
       break;

     default:
  		 printf("Error; message not sent.\n");
  }
} // end main