java - 为什么我使用javamail发送到outlook账户时回复邮件是以附件形式发送的？

Question

我尝试了多种方式使用 Outlook 帐户和 javamail api 在同一线程中获取回复，但我无法在同一线程中获取回复，而是作为附件获取。我尝试复制整个内容并保存在当前消息中，即使我作为附件获取，也尝试将内容配置更改为内联，但仍然不起作用您可以在下面找到我尝试过的代码。

    Properties properties = new Properties();
    Session emailSession = Session.getDefaultInstance(properties,null); 
    store = emailSession.getStore("imaps");     
    store.connect(host,mailbox_username, mailbox_password); 
    folder = store.getFolder("Inbox");
    folder.open(Folder.READ_WRITE);
    Message[] unreadMessages = folder.search(new FlagTerm(new Flags(Flags.Flag.SEEN),false));
    if(unreadMessages.size()>0)
    {

        for (int i = 0; i < unreadMessages.length; i++) 
        {
            log.info("retriving message "+(i+1))
            Message message = unreadMessages[i]

            Address[] froms = message.getFrom();
            String senderEmailAddress =(froms[0]).getAddress();

            if(senderEmailAddress.endsWith("@gmail.com"))
            {
                subject = message.getSubject()
                log.info(message.getSubject())

            }
            else
            {   //reply to same mail here we need to reply to the message
                Message message2 = new MimeMessage(emailSession);  
                message2= (MimeMessage) message.reply(false);
                message2.setSubject("RE: " + message.getSubject());  
                //message2.setFrom(new InternetAddress(from));  
                message2.setReplyTo(message.getReplyTo());
                message2.addRecipient(Message.RecipientType.TO, new InternetAddress(senderEmailAddress));                        
                BodyPart messageBodyPart = new MimeBodyPart();  
                content = "some reply message"
                //multipart.addBodyPart(content);
                messageBodyPart.setText(content);                        
                Multipart multipart = new MimeMultipart("related");  
                multipart.addBodyPart(messageBodyPart);  
                messageBodyPart = new MimeBodyPart();                   
                //messageBodyPart.setDataHandler(message.getDataHandler());  
                //bodyPart.setDataHandler(new DataHandler(ds));
                //messageBodyPart.setHeader("Content-Type", "image/jpeg; name=image.jpg");
                //messageBodyPart.setHeader("Content-ID", "<image>");
                //messageBodyPart.setHeader("Content-Disposition", "inline");
                //messageBodyPart.addBodyPart(bodyPart);
                //msg.setContent(content);
                messageBodyPart.setDisposition(MimeBodyPart.INLINE);
                messageBodyPart.setContent(message, "message/rfc822");
                messageBodyPart.setDataHandler(message.getDataHandler());  
                // Add part to multi part  
                multipart.addBodyPart(messageBodyPart);  
                // Associate multi-part with message  
                message2.setContent(multipart);  
                Transport t = emailSession.getTransport("smtp");
                try {
                 t.connect(mailbox_username, mailbox_password);
                    t.sendMessage(message2, message2.getAllRecipients());
                } finally {
                   t.close();
                }
            }
        }
    }

Answer 1

“内联”与“附件”只是给邮件阅读者的建议。许多人忽略了设备，或者无法内联显示所有内容类型。

如果您希望原始消息的文本出现在回复消息的正文中(例如，用“>”缩进)，您需要提取原始文本并适本地重新格式化，将其添加到回复消息的文本中回复，然后将该新字符串设置为回复消息的内容。