javax.mail.MessagingException: Could not connect to SMTP host: smtp.sinzhe.com, port: 25;

ゝ一世哀愁。 2021-12-10 09:37 266阅读 0赞

javax.mail.MessagingException: Could not connect to SMTP host: smtp.sinzhe.com, port: 25;
      nested exception is:
    	java.net.ConnectException: Connection timed out (Connection timed out)
    javax.mail.MessagingException: Could not connect to SMTP host: smtp.sinzhe.com, port: 25;
      nested exception is:
    	java.net.ConnectException: Connection timed out (Connection timed out)
    	at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1282)
    	at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:370)
    	at javax.mail.Service.connect(Service.java:297)
    	at javax.mail.Service.connect(Service.java:156)
    	at javax.mail.Service.connect(Service.java:105)
    	at javax.mail.Transport.send0(Transport.java:168)
    	at javax.mail.Transport.send(Transpor
    Caused by: java.net.ConnectException: Connection timed out (Connection timed out)
    	at java.net.PlainSocketImpl.socketConnect(Native Method)
    	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    	at java.net.Socket.connect(Socket.java:589)
    	at java.net.Socket.connect(Socket.java:538)
    	at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:232)
    	at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:189)
    	at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1250)
    	... 88 more

阿里云服务器发送邮件，不能发送成功，在本地测试通过的，一番考究之后，是因为阿里云“为了安全”默认将25端口关闭了，一大堆申请开通25端口的教程，别费劲！你没那么大脸，还是老老实实换个思路吧，比如走其他端口

package cn.com.suntree.cmp.utils;
    
    import javax.mail.*;
    import javax.mail.internet.InternetAddress;
    import javax.mail.internet.MimeMessage;
    import java.util.Properties;
    
    public class MaliUtils {
    
    	//发送邮箱验证码，to 接收方邮箱号码  code:验证码
        public static boolean sendMail(String to, String code) {
    
            try {
                Properties props = new Properties();
    
                props.put("mail.smtp.auth", "true");
                props.put("mail.smtp.host", "smtp.sinzhe.com");//自己邮箱对应host
                props.put("mail.transport.protocol", "smtp");
                props.put("mail.debug", "true");
                props.put("mail.smtp.starttls.enable", "true");
    
    			//不用默认的方式，就需要天加如下两行代码
                props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");//ssl方式
                props.put("mail.smtp.socketFactory.port", "465");//发送端口 默认是25
                
                // 访问SMTP服务时需要提供的密码
                props.put("mail.user", "发送方邮箱地址");//xxxx@sinzhe.com
                props.put("mail.password", "发送方邮箱对应密码");
                Authenticator authenticator = new Authenticator() {
                    @Override
                    protected PasswordAuthentication getPasswordAuthentication() {
                        // 用户名、密码
                        String userName = props.getProperty("mail.user");
                        String password = props.getProperty("mail.password");
                        return new PasswordAuthentication(userName, password);
                    }
                };
    
    
                // 使用环境属性和授权信息，创建邮件会话
                Session mailSession = Session.getInstance(props, authenticator);
                // 创建邮件消息
                MimeMessage message = new MimeMessage(mailSession);
                // 设置发件人
                InternetAddress form = new InternetAddress(
                        props.getProperty("mail.user"));
                message.setFrom(form);
    
                // 设置收件人
                InternetAddress toMail = new InternetAddress(to);
                message.setRecipient(Message.RecipientType.TO, toMail);
    
    
                // 设置邮件标题
                message.setSubject("邮件主题");
    
                // 设置邮件的内容体
                message.setContent("邮件正文！","text/html;charset=UTF-8");
    
                // 发送邮件
                Transport.send(message);
    
            } catch (Exception e) {
                e.printStackTrace();
                System.out.println(e);
                return false;
            }
            return true;
        }
    
    }