java - 通过 google 使用 Javax.mail 登录失败

Question

我已经在我的笔记本电脑上成功使用了以下代码，收件人收到了预期的邮件。但是，当将代码放入 jar 并从托管服务器运行时。我收到以下错误。

代码

    Properties props = new Properties();  
    props.put("mail.smtp.host", "smtp.gmail.com");  
    props.put("mail.smtp.auth", "true");  
    props.put("mail.debug", "true");  
    props.put("mail.smtp.port", 465);  
    props.put("mail.smtp.socketFactory.port", 465);  
    props.put("mail.smtp.starttls.enable", "true");
    props.put("mail.smtp.ssl.enable", "true");
    props.put("mail.transport.protocol", "smtp");
    Session mailSession = null;

    mailSession = Session.getInstance(props,  
            new javax.mail.Authenticator() {  
        protected PasswordAuthentication getPasswordAuthentication() {  
            return new PasswordAuthentication("emailadress", "password");  
        }  
    }); 

    try {

        Transport transport = mailSession.getTransport();

        MimeMessage message = new MimeMessage(mailSession);

      message.setSubject("Todays Email!:");
      message.setFrom(new InternetAddress("theemailsender@gmail.com"));

      message.addRecipients(Message.RecipientType.TO, InternetAddress.parse("recipient1@gmail.com"));

      String body = theBody;
      message.setContent(body,"text/html");
      transport.connect();

        transport.sendMessage(message,message.getAllRecipients());
        transport.close();
    } catch (Exception exception) {

    }

错误

DEBUG SMTP: Found extension "SIZE", arg "35882577"
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN XOAUTH XOAUTH2 PLAIN-CLIENTTOKEN"
DEBUG SMTP: Found extension "ENHANCEDSTATUSCODES", arg ""
DEBUG SMTP: Found extension "CHUNKING", arg ""
DEBUG SMTP: STARTTLS requested but already using SSL
DEBUG SMTP: Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM
DEBUG SMTP: AUTH LOGIN command trace suppressed
DEBUG SMTP: AUTH LOGIN failed

此时我假设我必须将 startle.enable 或 ssl.enable 设置为 true，但不能同时设置两者。

Answer 1

按照以下步骤操作，您的问题有望得到解决

• 首先登录您的 Gmail 帐户，然后单击以下路径: google account

  在安全 block 中，刚刚打开

  允许安全性较低的应用:开启

  希望它能拯救你的一天......祝你好运