使用javamail发SMTPS邮件，javamailsmtps邮件,Java通常情况下都不会

使用javamail发SMTPS邮件，javamailsmtps邮件,Java通常情况下都不会

Java

通常情况下都不会对smtp发邮件加密，但是gmail做了加密。

首先需要引用 Javamail 1.4 包。

import javax.mail.*;import javax.mail.internet.*;import java.util.Properties;public class SimpleSSLMail {    private static final String SMTP_HOST_NAME = "smtp.gmail.com";    private static final int SMTP_HOST_PORT = 465;    private static final String SMTP_AUTH_USER = "myaccount@gmail.com";    private static final String SMTP_AUTH_PWD  = "mypwd";    public static void main(String[] args) throws Exception{       new SimpleSSLMail().test();    }    public void test() throws Exception{        Properties props = new Properties();        props.put("mail.transport.protocol", "smtps");        props.put("mail.smtps.host", SMTP_HOST_NAME);        props.put("mail.smtps.auth", "true");        // props.put("mail.smtps.quitwait", "false");        Session mailSession = Session.getDefaultInstance(props);        mailSession.setDebug(true);        Transport transport = mailSession.getTransport();        MimeMessage message = new MimeMessage(mailSession);        message.setSubject("Testing SMTP-SSL");        message.setContent("This is a test", "text/plain");        message.addRecipient(Message.RecipientType.TO,             new InternetAddress("elvis@presley.org"));        transport.connect          (SMTP_HOST_NAME, SMTP_HOST_PORT, SMTP_AUTH_USER, SMTP_AUTH_PWD);        transport.sendMessage(message,            message.getRecipients(Message.RecipientType.TO));        transport.close();    }}

参考 : http://java.sun.com/products/javamail/javadocs/com/sun/mail/smtp/package-summary.html

---

说明下：雅虎的smtp和pop的端口分别是pop.mail.yahoo.com (POP3 - port 110)
smtp.mail.yahoo.com (SMPTP - port 25)

而Gmail的是：pop.gmail.com (POP3S SSL, 端口 995) SMTP - gmail.com (SMPTS SSL enabled, port 465)