带附件 正文+图片 的邮件。

public static void main(String[] args) throws Exception {

  // 1.找服务器
  Properties props = new Properties();
  props.setProperty("mail.transport.protocol", "smtp");
  props.setProperty("mail.host", "localhost");

  // 2.登陆服务器
  Session session = Session.getInstance(props);
  Transport transport = session.getTransport();
  transport.connect("zs", "123456");

  // 3.写邮件内容
  MimeMessage message = new MimeMessage(session);
  message.setFrom(new InternetAddress("[e-mail]"));
  message.setRecipient(Message.RecipientType.TO, new InternetAddress(
    "[e-mail]"));
  message.setSubject("<s><s><2><><1><1>");

  MimeMultipart multipart = new MimeMultipart();
  /**
   * 图文
   */
  MimeBodyPart bodyPart = new MimeBodyPart();
  bodyPart.setContent("AAAAA<img src='cid:img'>fdeghefgwwfwef",
    "text/html");
  MimeBodyPart imgPart = new MimeBodyPart();
  DataHandler handler = new DataHandler(new FileDataSource(new File(
    "c:\\b.jpg")));
  imgPart.setDataHandler(handler);
  imgPart.setContentID("img");
  imgPart.setFileName("b.jpg");
  /**
   * 增加附件
   */
  MimeBodyPart attach = new MimeBodyPart();
  attach.setDataHandler(handler);
  attach.setFileName("my.jpg");
  
  multipart.addBodyPart(bodyPart);
  multipart.addBodyPart(imgPart);
  multipart.setSubType("mixed");
  // multipart.setSubType("related");
  
  MimeBodyPart mimeBodyPart = new MimeBodyPart();
  mimeBodyPart.setContent(multipart);
  
  MimeMultipart multipart2 = new MimeMultipart();
  multipart2.addBodyPart(mimeBodyPart);
  multipart2.addBodyPart(attach);
  multipart2.setSubType("related");
  
  message.setContent(multipart2);

  // 4.填写发送人的邮箱地址
  transport.send(message);
  transport.close();
  // 5.点击发送 就是运行程序
 }

 

------------------------------------------------------------------------------------------------------

发邮件 smtp
telnet localhost 25
ehlo xxxx
250-AUTH=LOGIN
250 AUTH LOGIN
auth login
334 VXNlcm5hbWU6
enM=
334 UGFzc3dvcmQ6
MTIzNDU2
235 OK
mail from:[e-mail]
250 OK
rcpt to:[e-mail]
250 OK
Data
354 send the mail data, end with .
发一封简单邮件
from:lisi<[e-mail]>
to:[e-mail]
cc:[e-mail]
subject:a mail

hello
.
250

收邮件 pop3
telnet localhost 110
user lisi
+OK welcome here
pass 123456
+OK
stat
+OK 2 583
list 2#
+OK 2 183
retr 2#
+OK 183 octets
Return-Path: <[e-mail]>
Received: from xxxx (unknown [127.0.0.1])
        by itcast.cn with CMailServer 5.2 SMTP; Tue, 24 May 2011