从zoho邮件服务器接收电子邮件

Question

我试图阅读公司特定生成的电子邮件服务器的电子邮件，这是我的代码，我无法与服务器建立连接，因为它是Linux服务器。

 public class Testing {
     public static void main(String[] args) {
         String from = "email";
         String pass = "pwd";
         String to = "toId";
         String host = "pop.zoho.com";
         String port = "995";
         Properties properties = System.getProperties();
         properties.put("mail.smtp.starttls.enable", "true");
         properties.put("mail.smtp.host", host);
         properties.put("mail.smtp.user", from);
         properties.put("mail.smtp.password", pass);
         properties.put("mail.smtp.port", "995");
         properties.put("mail.smtp.auth", "true");
         Session session = Session.getDefaultInstance(properties);
         try {
             MimeMessage message = new MimeMessage(session);
             message.setFrom(new InternetAddress(from));
             message.addRecipient(Message.RecipientType.TO,
                 new InternetAddress(to));
             message.setSubject("This is the Subject Line!");
             message.setText("This is actual message");
             Transport transport = session.getTransport("smtp");
             transport.connect(host, from, pass);
             transport.sendMessage(message, message.getAllRecipients());
             transport.close();
             System.out.println("Sent message successfully....");
         } catch (MessagingException mex) {
             mex.printStackTrace();
         }
     }
 }

请提供全面的帮助 提前谢谢