那有的时候OK,有的时候不OK那是为何呢?


代码见内:


Properties props = new Properties();
props.put("mail.smtp.host", smtphost);
props.put("mail.smtp.auth","true");
Session ssn = Session.getInstance(props, null);

MimeMessage message = new MimeMessage(ssn);

InternetAddress fromAddress = new InternetAddress(from);
message.setFrom(fromAddress);
InternetAddress toAddress = new InternetAddress(to);
message.addRecipient(Message.RecipientType.TO, toAddress);

message.setSubject(subject);
message.setText(body);

Transport transport = ssn.getTransport("smtp");
transport.connect(smtphost, user, password);
transport.sendMessage(message, message.getRecipients(Message.RecipientType.TO));
//transport.send(message);
transport.close();