Hallo,
Ich habe eine Mailklasse, die funktionert prima, solange die Exchange SMTP ohne Authentifizierung zulassen. Nun habe ich einen Exchange 2007, der liefert mir immer ein 5.7,1 "Caused by: com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.1 Client was not authenticated" Was mache ich falsch? Der Focus liegt auf der Methode prepare (ist fett hervorgehoben).

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/*
 * Created on 20.05.2005
 *
 * To change the template for this generated file go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
package com.j2dot;
 
 
 
import java.util.Properties;
 
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
 
import com.j2dot.exceptions.Exceptions;
import com.j2dot.exceptions.J2InternalException;
import com.j2dot.web.utils.ConfigUtils;
 
/**
 * Utility class,  sends emails. * 
 *
 */
public class MailUtils {
 
    /**
     * sends email in plain text.
     * @param server name or ip of the SMTP server.
     * @param subject Subject.
     * @param text  Body of the email.
     * @param from  'from' address.
     * @param to    'to'  address
     * @throws J2InternalException  any internal exception.
     */
    public static void sendPlainText(String server,String subject, String text, String from , String to) throws J2InternalException{
        sendPlainText( server, subject,  text,  from ,  to, null);
    }
    /**
     * sends email as simple text.
     * @param server  server name or ip of the SMTP server.
     * @param subject the Subject.
     * @param text  the body.
     * @param from
     * @param to
     * @param replyto can be null.
     * @throws J2InternalException
     */
    public static void sendPlainText(String server,String subject, String text, String from , String to,String replyto) throws J2InternalException{
        MimeMessage message=null;
        try {
             message=prepare( server, subject, from ,  to, replyto);
                    message.setText(text);
 
        } catch (AddressException e) {
            Exceptions.throwInternalException(e);
        } catch (MessagingException e) {
            Exceptions.throwInternalException(e);
        }
 
 
                try {
                    Transport.send(message);
                } catch (MessagingException e1) {
                    Exceptions.throwInternalException(e1);
                }
    }
 
    /**
     * sends email as simple text with selectable encoding
     * @param server  server name or IP of the SMTP server.
     * @param subject subject
     * @param text    body
     * @param from    sender address
     * @param to      receiver address
     * @param charset charset for encoding
     * @throws J2InternalException
     */
    public static void sendPlainTextEncoded(String server,String subject, String text, String from , String to, String charset) throws J2InternalException{
        sendPlainTextEncoded(server, subject, text, from, to, null, charset);
    }
 
    /**
     * sends email as simple text with selectable encoding
     * @param server  server name or IP of the SMTP server.
     * @param subject subject
     * @param text    body
     * @param from    sender address
     * @param to      receiver address
     * @param replyto reply address, can be null
     * @param charset charset for encoding
     * @throws J2InternalException
     */
    public static void sendPlainTextEncoded(String server,String subject, String text, String from , String to,String replyto, String charset) throws J2InternalException{
        MimeMessage message = null;
        try {
            message = prepare(server, subject, from, to, replyto);
            message.setText(text, charset);
        } catch (AddressException ae) {
            Exceptions.throwInternalException(ae);
        } catch (MessagingException me) {
            Exceptions.throwInternalException(me);
        }
        try {
            Transport.send(message);
        } catch (MessagingException me) {
            Exceptions.throwInternalException(me);
        }
    }
 
 
    /**
     * creates the Email message.
     * @param server  Ip address or the name of the mail server.
     * @param subject  the subject of the message.
     * @param from  the from adress.
     * @param to  the address of the recipient(s), can be a comma separated string with addresses.
     * If an address starts with Cc: oder Bcc: it is used as CC oder BCC address.
     * @param replyto  the reply-to address, can be null.
     * @return the message.
     * @throws AddressException
     * @throws MessagingException
     */
    public static MimeMessage prepare(String server,String subject,String from , String to,String replyto) throws AddressException, MessagingException{
        String smtp_username = "";
        String smtp_password = "";
        Authenticator auth1 = null;
        Properties props = System.getProperties();
        String port = ConfigUtils.getString("smtpport");
//Ist in meinem Fall jetzt true     
[B]Boolean auth = ConfigUtils.getBoolean("smtp_auth");[/B]      
//Das wird ebenfalls durchlaufen        
[B]if (auth.equals(true)) {
            smtp_username = ConfigUtils.getString("smtpuser");
            smtp_password = ConfigUtils.getString("smtppassword");          
        }
        
        props.put("mail.smtp.host", server);
        if(Validator.notEmpty(port)) {          
            props.put("mail.smtp.port", port);      
        }
        if(auth.equals(true)) {         
//PasswordAuthentication(username, password) ist Return von auth1. Benutzername und Passwort im Klartext.           
auth1 = new PopupAuthenticator();
            props.put("mail.smtp.auth", "true");            
        }
        
        // encoding for mail subject
        String charSet = ConfigUtils.getString("default_mail_encoding");
        if(!Validator.notEmpty(charSet)) {
            charSet = "US-ASCII"; // default 
        }
        System.out.println("auth1:"+auth1);
        Session session = Session.getDefaultInstance(props, auth1); 
        MimeMessage message = new MimeMessage(session);
        
        //Nur wenn authentifiziertes SMTP erforderlich ist
        
        /*
        if (auth.equals(true)) {
            Transport tr = session.getTransport("smtp");
            tr.connect(server,smtp_username,smtp_password);
            message.saveChanges();  
        }
        */
            message.setFrom(new InternetAddress(from));
            if(replyto!=null){
                message.addHeader("Reply-To",replyto);
            }
            String[] tos=to.split("\\,");
            for(int i=0;i<tos.length;i++){
                if(tos[i].toLowerCase().startsWith("bcc:")){
                    message.addRecipient(Message.RecipientType.BCC,
                              new InternetAddress(tos[i].substring(4)));
                    continue;
                }
                if(tos[i].toLowerCase().startsWith("cc:")){
                    message.addRecipient(Message.RecipientType.CC,
                              new InternetAddress(tos[i].substring(3)));
                    continue;
                }
            message.addRecipient(Message.RecipientType.TO,
                      new InternetAddress(tos[i]));
            }
                    message.setSubject(subject, charSet);
                    return message;
    }[/B]
 
 
    /**
     * Sends Email as html.
     * @param server Ip address or the name of the mail server.
     * @param subject the Subject
     * @param text  the text (HTML).
     * @param from
     * @param to
     * @param replyto  can be null.
     * @throws J2InternalException
     */
    public static void sendHtml(String server,String subject, String text, String from , String to,String replyto) throws J2InternalException{
        MimeMessage message=null;
                try {
                     message=prepare( server, subject, from ,  to, replyto);
                            message.setContent(text,"text/html");
 
                } catch (AddressException e) {
                    Exceptions.throwInternalException(e);
                } catch (MessagingException e) {
                    Exceptions.throwInternalException(e);
                }
 
 
                try {
                    Transport.send(message);
                } catch (MessagingException e1) {
                    Exceptions.throwInternalException(e1);
                }
    }
 
    /**
     * sends email in plain text with attached file.
     * @param server name or ip of the SMTP server.
     * @param subject Subject.
     * @param text  Body of the email.
     * @param from  'from' address.
     * @param to    'to'  address
     * @param filePath path of the file to attach.
     * @throws J2InternalException  any internal exception.
     *
     * @throws J2InternalException
     */
    public static void sendTextWAttach(String server,String subject, String text, String from , String to,String filePath) throws J2InternalException{
 
        sendTextWAttach( server, subject,  text,  from ,  to, filePath,false);
    }
 
 
/**
 * sends HTML-email with attachement
 * @param server name or ip of the SMTP server.
 * @param subject Subject.
 * @param text Body of the email.
 * @param from 'from' address.
 * @param to 'to'  address.
 * @param filePath path to the file that must be attached.
 * @throws J2InternalException
 */
public static void sendHtmlWAttach(String server,String subject, String text, String from , String to,String filePath) throws J2InternalException{
 
        sendTextWAttach( server, subject,  text,  from ,  to, filePath,true);
    }
 
 
 
    private static void sendTextWAttach(String server,String subject, String text, String from , String to,String filePath,boolean html) throws J2InternalException{
 
        MimeMessage message=null;
 
 
        MimeMultipart mp = new MimeMultipart();
        MimeBodyPart b1 = new MimeBodyPart();
        MimeBodyPart b2 = new MimeBodyPart();
        FileDataSource fds = new FileDataSource(filePath);
        try {
             message=prepare( server, subject, from ,  to, null);
            if(html) {
                b1.setContent(text,"text/html");
            } else {
                b1.setContent(text,"text/plain");
            }
 
            b2.setDataHandler(new DataHandler(fds));
            b2.setFileName(fds.getName());
            mp.addBodyPart(b1);
            mp.addBodyPart(b2);
        } catch (MessagingException e2) {
            Exceptions.throwInternalException(e2);
        }
 
 
                try {
 
                            message.setContent(mp);
 
                } catch (AddressException e) {
                    Exceptions.throwInternalException(e);
                } catch (MessagingException e) {
                    Exceptions.throwInternalException(e);
                }
 
                try {
                    Transport.send(message);
                } catch (MessagingException e1) {
                    Exceptions.throwInternalException(e1);
                }
    }
 
 
 
}