Question

我正在编写一个程序来阅读outlook中的电子邮件。

我编写了以下程序来发送电子邮件。

package com.getEmails;

import java.util.Properties;
import javax.mail.*;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class MailExample {
    public static void main(String args[]) {

        String to = "xyz@abc.com";
        String from = "ubv@abc.com";
        String host = "myhost";

        try {
            // Get system properties
            Properties props = System.getProperties();

            Authenticator authenticator = new Authenticator();
            props.put("mail.smtp.host", host);
            props.put("mail.smtp.auth", "true");
            // props.put("mail.smtp.auth.mechanisms","NTLM");
            props.put("mail.smtp.submitter", authenticator
                    .getPasswordAuthentication().getUserName());
            // Get session
            Session session = Session.getInstance(props, authenticator);

            session.setDebug(true);

            // Define message
            MimeMessage message = new MimeMessage(session);

            // Set the from address
            message.setFrom(new InternetAddress(from));

            // Set the to address
            message.addRecipient(Message.RecipientType.TO, new InternetAddress(
                    to));

            // Set the subject
            message.setSubject("JavaMail Test");

            // Set the content
            message.setText("Test email through Java Mail");
            // Send message
            Transport.send(message);
            System.out.println("OK Man");
        }

        catch (MessagingException e) {
            e.toString();
        } catch (Exception mex) {
            System.out.print(mex);
        }
    }

    static class Authenticator extends javax.mail.Authenticator {
        private PasswordAuthentication authentication;

        public Authenticator() {
            String username = "";
            String password = "";
            authentication = new PasswordAuthentication(username, password);
        }

        protected PasswordAuthentication getPasswordAuthentication() {
            return authentication;
        }
    }
}

我已将host作为myhost，我很抱歉，因为这是我的组织主持人地址。

我正在尝试使用以下程序阅读收件箱中的内容。

package com.getEmails;

import java.util.Properties;

import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Store;

public class readEmails {

    public static void main(String[] args) throws Exception {
        final String userName = "xyz@abc.com";
        final String password = "password";
        final String host = "myhost";
        // properties
        Properties props = System.getProperties();

        Session session = Session.getInstance(props,
                new javax.mail.Authenticator() {
                    protected PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication(userName, password);
                    }
                });
        session.setDebug(true);

        // Store object
        Store store = session.getStore("imaps");
        store.connect(host, userName, password);

        // Get folder
        Folder folder = store.getFolder("Drafts");
        folder.open(Folder.READ_ONLY);
        Message messages[] = folder.getMessages();
        for (Message message : messages) {
            System.out.println(message.getSubject());
        }
    }

}

在这里，当我运行上述程序时，我得到以下输出。

DEBUG: setDebug: JavaMail version 1.4.5
DEBUG: getProvider() returning javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Sun Microsystems, Inc]
DEBUG: mail.imap.fetchsize: 16384
DEBUG: mail.imap.statuscachetimeout: 1000
DEBUG: mail.imap.appendbuffersize: -1
DEBUG: mail.imap.minidletime: 10
DEBUG: trying to connect to host "myhost", port 993, isSSL true
Exception in thread "main" javax.mail.MessagingException: Connection timed out: connect;
  nested exception is:
    java.net.ConnectException: Connection timed out: connect
    at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:670)
    at javax.mail.Service.connect(Service.java:295)
    at javax.mail.Service.connect(Service.java:176)
    at com.getEmails.readEmails.main(readEmails.java:30)
Caused by: java.net.ConnectException: Connection timed out: connect
    at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
    at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
    at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
    at java.net.PlainSocketImpl.connect(Unknown Source)
    at java.net.SocksSocketImpl.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:319)
    at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:233)
    at com.sun.mail.iap.Protocol.<init>(Protocol.java:113)
    at com.sun.mail.imap.protocol.IMAPProtocol.<init>(IMAPProtocol.java:111)
    at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:637)
    ... 3 more

即使我将imaps更改为imap，我也会遇到相同的错误。

我还想告诉我，我使用相同的host来阅读和撰写电子邮件。

请让我知道如何解决此问题并收到我的电子邮件。我使用JavaMail（我只使用它）。

Answer 1

通过“outlook”我假设您正在连接到组织中的Microsoft Exchange邮件服务器。

Exchange通常使用Microsoft专有协议和Outlook邮件阅读器。除非在Exchange服务器上启用了IMAP支持，否则您将无法使用JavaMail进行连接。请咨询您的服务器管理员，了解是否已启用IMAP。（启用IMAP进行读取与启用SMTP以进行发送是分开的。）

此外，您使用的是非常旧版本的JavaMail。您应该考虑upgrading to the current version。

无法使用javamail读取Outlook电子邮件

1 个答案: