Question

这里的新人。我试图通过java发送电子邮件，我使用的以下代码来自此站点;

public class NewClass extends Object{

public static void main(String [] args)
{

try{

    Properties props = new Properties();
    props.put("mail.smtp.host", "smtp.mail.yahoo.com"); // for gmail use smtp.gmail.com
    props.put("mail.smtp.auth", "true");
    props.put("mail.debug", "true"); 
    props.put("mail.smtp.starttls.enable", "true");
    props.put("mail.smtp.port", "587");
    props.put("mail.smtp.socketFactory.port", "587");
    props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
    props.put("mail.smtp.socketFactory.fallback", "false");

    Session mailSession = Session.getInstance(props, new javax.mail.Authenticator() {

        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication("abcd@yahoo.com", "abcd");
        }
    });

    mailSession.setDebug(true); // Enable the debug mode

    Message msg = new MimeMessage( mailSession );

    //--[ Set the FROM, TO, DATE and SUBJECT fields
    msg.setFrom( new InternetAddress( "abcd@yahoo.com" ) );
    msg.setRecipients( Message.RecipientType.TO,InternetAddress.parse("efgh@gmail.com") );
    msg.setSentDate( new Date());
    msg.setSubject( "Hello World!" );

    //--[ Create the body of the mail
    msg.setText( "Hello from my first e-mail sent with JavaMail" );

    //--[ Ask the Transport class to send our mail message
    Transport.send( msg );

}catch(Exception E){
    System.out.println("Unable to send Mail");
    System.out.println( E );
}

} }

这是我得到的错误：

javax.mail.MessagingException: Could not connect to SMTP host: smtp.mail.yahoo.com, port: 587;  nested exception is: java.net.SocketException: Connection reset

我在这里做错了什么？任何帮助将不胜感激，TIA！ PS。抱歉任何格式错误。

Answer 1

smtp.mail.yahoo.com的SSL SMTP端口为465，而不是587。

更改您的代码：

props.put("mail.smtp.port", "587");
props.put("mail.smtp.socketFactory.port", "587");

到

props.put("mail.smtp.port", "465");
props.put("mail.smtp.socketFactory.port", "465");

通过java程序发送电子邮件

1 个答案: