创建一个非常简单的文字/普通邮件并传送

import java.util.Date;
import java.util.Properties;

import javax.mail.Address;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.SendFailedException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
public class MainClass {
static String msgText = "This is a message body./nHere's the second line.";

public static void main(String[] args) {
if (args.length != 4) {
usage();
System.exit(1);
}

System.out.println();

String to = args[0];
String from = args[1];
String host = args[2];
boolean debug = Boolean.valueOf(args[3]).booleanValue();

// create some properties and get the default Session
Properties props = new Properties();
props.put("mail.smtp.host", host);
if (debug)
props.put("mail.debug", args[3]);

Session session = Session.getInstance(props, null);
session.setDebug(debug);

try {
// create a message
Message msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(from));
InternetAddress[] address = { new InternetAddress(args[0]) };
msg.setRecipients(Message.RecipientType.TO, address);
msg.setSubject("JavaMail APIs Test");
msg.setSentDate(new Date());
// If the desired charset is known, you can use
// setText(text, charset)
msg.setText(msgText);

Transport.send(msg);
} catch (MessagingException mex) {
System.out.println("/n--Exception handling in msgsendsample.java");

mex.printStackTrace();
System.out.println();
Exception ex = mex;
do {
if (ex instanceof SendFailedException) {
SendFailedException sfex = (SendFailedException) ex;
Address[] invalid = sfex.getInvalidAddresses();
if (invalid != null) {
System.out.println(" ** Invalid Addresses");
if (invalid != null) {
for (int i = 0; i < invalid.length; i++)
System.out.println(" " + invalid[i]);
}
}
Address[] validUnsent = sfex.getValidUnsentAddresses();
if (validUnsent != null) {
System.out.println(" ** ValidUnsent Addresses");
if (validUnsent != null) {
for (int i = 0; i < validUnsent.length; i++)
System.out.println(" " + validUnsent[i]);
}
}
Address[] validSent = sfex.getValidSentAddresses();
if (validSent != null) {
System.out.println(" ** ValidSent Addresses");
if (validSent != null) {
for (int i = 0; i < validSent.length; i++)
System.out.println(" " + validSent[i]);
}
}
}
System.out.println();
if (ex instanceof MessagingException)
ex = ((MessagingException) ex).getNextException();
else
ex = null;
} while (ex != null);
}
}

private static void usage() {
System.out.println("usage: java msgsendsample <to> <from> <smtp> true|false");
}
}