Email senden - web.de ; Fehlercode

[TimEtech]

Hi,

ich bin in Java leider ein kompletter Anfänger, muss notgedrungen aber auf die Sprache zurückgreifen, da ich ein Programm erweitern muss. Hierbei geht es nur darum eine E-Mail an eine web.de Adresse zu versenden. Leider bekomme ich immer eine Fehlermeldung, die ich bis heute nicht lösen konnte.
Soweit das Programm:

package com.sendemail;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SendMail {

public static void main(String[] args) {

// Recipient's email ID needs to be mentioned.
String to = "email@web.de";

// Sender's email ID needs to be mentioned
String from = "email@web.de";

// Assuming you are sending email from through gmails smtp
String host = "smtp.web.de";

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

// Setup mail server
properties.put("mail.smtp.host", host);
properties.put("mail.smtp.port", "587");
properties.put("mail.smtp.ssl.enable", "true");
properties.put("mail.smtp.auth", true);
properties.put("mail.smtp.socketFactory.port", "995");
properties.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
properties.put("mail.smtp.socketFactory.fallback", "false");

// Get the Session object.// and pass username and password
Session session = Session.getInstance(properties, new javax.mail.Authenticator() {

protected PasswordAuthentication getPasswordAuthentication() {

return new PasswordAuthentication("email@web.de", "passwort");

}

});

// Used to debug SMTP issues
session.setDebug(true);

try {
// Create a default MimeMessage object.
MimeMessage message = new MimeMessage(session);

// Set From: header field of the header.
message.setFrom(new InternetAddress(from));

// Set To: header field of the header.
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));

// Set Subject: header field
message.setSubject("OpenbotJava");

// Now set the actual message
message.setText("OpenbotJava");

System.out.println("OpenbotJava");
// Send message
Transport.send(message);
System.out.println("OpenbotJava");
} catch (MessagingException mex) {
mex.printStackTrace();

}

}

}

und ab Hier der Fehlercode:

DEBUG: setDebug: JavaMail version 1.6.2
OpenbotJava
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]
DEBUG SMTP: need username and password for authentication
DEBUG SMTP: protocolConnect returning false, host=smtp.web.de, user=timpo, password=<null>
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.web.de", port 587, isSSL true
javax.mail.MessagingException: Could not connect to SMTP host: smtp.web.de, port: 587;
nested exception is:
java.net.SocketException: Connection reset
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2211)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:740)
at javax.mail.Service.connect(Service.java:388)
at javax.mail.Service.connect(Service.java:246)
at javax.mail.Service.connect(Service.java:195)
at javax.mail.Transport.send0(Transport.java:254)
at javax.mail.Transport.send(Transport.java:124)
at com.sendemail.SendMail.main(SendMail.java:70)
Caused by: java.net.SocketException: Connection reset
at java.base/sun.nio.ch.NioSocketImpl.implRead(NioSocketImpl.java:323)
at java.base/sun.nio.ch.NioSocketImpl.read(NioSocketImpl.java:350)
at java.base/sun.nio.ch.NioSocketImpl$1.read(NioSocketImpl.java:803)
at java.base/java.net.Socket$SocketInputStream.read(Socket.java:976)
at java.base/sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:478)
at java.base/sun.security.ssl.SSLSocketInputRecord.readHeader(SSLSocketInputRecord.java:472)
at java.base/sun.security.ssl.SSLSocketInputRecord.decode(SSLSocketInputRecord.java:160)
at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:111)
at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1506)
at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1416)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:451)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:422)
at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:626)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:400)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:217)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2175)
... 7 more


Hat jemand eine Ahnung wo der Fehler liegen könnte?
Vielen Dank im Voraus!

mfg Tim

 

[Jw456]

eine richtige Authentication beim Server hast du erst mal nicht.

Session session = Session.getInstance(properties, new javax.mail.Authenticator())

macht keine Anmeldung beim Server.




in etwa so

        final String fromEmail = "myemailid@gmail.com"; //requires valid gmail id
        final String password = "mypassword"; // correct password for gmail id
        final String toEmail = "myemail@yahoo.com"; // can be any email id
    
        System.out.println("SSLEmail Start");
        Properties props = new Properties();
        props.put("mail.smtp.host", "smtp.gmail.com"); //SMTP Host
        props.put("mail.smtp.socketFactory.port", "465"); //SSL Port
        props.put("mail.smtp.socketFactory.class",
                "javax.net.ssl.SSLSocketFactory"); //SSL Factory Class
        props.put("mail.smtp.auth", "true"); //Enabling SMTP Authentication
        props.put("mail.smtp.port", "465"); //SMTP Port
    
        Authenticator auth = new Authenticator() {
            //override the getPasswordAuthentication method
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(fromEmail, password);
            }
        };
    
        Session session = Session.getDefaultInstance(props, auth);

JavaMail Example - Send Mail in Java using SMTP - JournalDev

JavaMail Example. Send mail in java. Java SMTP, JavaMail SMTP example authentication, TLS, SSL, attachment, images, gmail email example, tips, faqs

www.journaldev.com

 

[TimEtech]

eine richtige Authentication beim Server hast du erst mal nicht.

Session session = Session.getInstance(properties, new javax.mail.Authenticator())

macht keine Anmeldung beim Server.




in etwa so

        final String fromEmail = "myemailid@gmail.com"; //requires valid gmail id
        final String password = "mypassword"; // correct password for gmail id
        final String toEmail = "myemail@yahoo.com"; // can be any email id
   
        System.out.println("SSLEmail Start");
        Properties props = new Properties();
        props.put("mail.smtp.host", "smtp.gmail.com"); //SMTP Host
        props.put("mail.smtp.socketFactory.port", "465"); //SSL Port
        props.put("mail.smtp.socketFactory.class",
                "javax.net.ssl.SSLSocketFactory"); //SSL Factory Class
        props.put("mail.smtp.auth", "true"); //Enabling SMTP Authentication
        props.put("mail.smtp.port", "465"); //SMTP Port
   
        Authenticator auth = new Authenticator() {
            //override the getPasswordAuthentication method
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(fromEmail, password);
            }
        };
   
        Session session = Session.getDefaultInstance(props, auth);

JavaMail Example - Send Mail in Java using SMTP - JournalDev

JavaMail Example. Send mail in java. Java SMTP, JavaMail SMTP example authentication, TLS, SSL, attachment, images, gmail email example, tips, faqs

www.journaldev.com

Vielen Dank für die Antwort. Hatte heute leider erst Zeit das ganze aus zu probieren. Habe etwas herumgespielt, den Fehler aber nicht weg bekommen.... Woran genau liegt diese Failauthetication?
mfg