记Java mail的一次异常Failed messages: javax.mail.MessagingException: Exception reading response (java.net.

1、Java mail 邮件能够发送成功,但是会抛出这样的一个异常

org.springframework.mail.MailSendException: Failed messages: javax.mail.MessagingException: Exception reading response (java.net.SocketTimeoutException: Read timed out)
    at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:448) ~[spring-context-support-4.1.0.RELEASE.jar:4.1.0.RELEASE]
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:346) ~[spring-context-support-4.1.0.RELEASE.jar:4.1.0.RELEASE]
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:341) ~[spring-context-support-4.1.0.RELEASE.jar:4.1.0.RELEASE]

 

2、Java代码结构如下:

					String SSL_FACTORY="javax.net.ssl.SSLSocketFactory";
					Properties prop = new Properties();
/*					prop.put("mail.smtp.auth", "0".equals(smtp
							.get("mail_needauth")) ? "true" : "false");*/
					prop.put("mail.smtp.auth", "true");
					// 将这个参数设为true，让服务器进行认证,认证用户名和密码是否正确
					prop.put("mail.smtp.timeout", smtp.get("SMTP_TIME_OUT"));
					prop.put("mail.smtp.host", host);
					prop.setProperty("mail.smtp.socketFactory.class", SSL_FACTORY);
					prop.setProperty("mail.smtp.socketFactory.fallback", String.valueOf(port));
					prop.setProperty("mail.smtp.starttls.enable", "true");
					prop.setProperty("mail.smtp.socketFactory.port", String.valueOf(port));
					prop.setProperty("mail.smtp.auth", "true");
					// 添加验证
					EmailAutherticator auth = new EmailAutherticator(name, pwd);

					Session session = Session.getDefaultInstance(prop, auth);
					senderImpl.setSession(session);

3、解决办法: 

设置超时时间即可解决...