身份验证使用IMAP向服务器发送电子邮件失败

Question

我有一个IMAP主机，用户名和密码。使用此凭据，我想将电子邮件发送到IMAP服务器，该服务器将路由请求。

我的代码是

import java.util.Properties;  
import javax.mail.*;  
import javax.mail.internet.*;

import com.sun.mail.imap.IMAPStore;
import com.sun.mail.util.MailSSLSocketFactory;

import java.util.*;

public class Mail {

private String to = "xyz@abc.com";
private String from ="defgh@abc.com";
private String message ="test";
private String subject="Test";  
private String imapServ="hist.abc.net";  
private String userName="defgh@abc.com";  
private String password="xxxxxxx";  

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
System.out.println("password:"+password);
}  

public String getUserName() {
return userName;
}

public void setUserName(String userName) {
this.userName = userName;  
System.out.println("userName:"+userName);
}


/** 
* @return the to 
*/
public String getTo() {
return to;
}

/** 
* @param to the to to set 
*/  

public void setTo(String to) {
this.to = to;
}

/** 
* @return the from 
*/  

public String getFrom() {
return from;
}  

/** 
* @param from the from to set 
*/  

public void setFrom(String from) {
this.from = from;
}

/**
* @return the message 
*/

public String getMessage() {  
return message;  
}

/** 
* @param message the message to set 
*/

public void setMessage(String message) {  
this.message = message;  
}

/** 
* @return the subject 
*/  

public String getSubject() {  
return subject;  
}

/** 
* @param subject the subject to set 
*/  

public void setSubject(String subject) {  
this.subject = subject;  
}  

/** 
* @return the imapServ 
*/

public String getImapServ() {
return imapServ;
}

public void setImapServ(String imapServ) {
this.imapServ = imapServ;
}


public int sendMail(){  

try  
{  
Properties props = System.getProperties();
props.setProperty("mail.imap.sasl.enable", "true");
props.setProperty("mail.imap.starttls.enable", "true");

props.setProperty("mail.imap.auth.ntlm.domain", "false");
props.setProperty("mail.imap.auth.plain.disable", "false");
props.setProperty("mail.imap.auth.gssapi.disable", "true");
props.setProperty("mail.imap.ssl.enable", "true");
props.setProperty("mail.imap.port", "993");
Session imapSession = Session.getInstance(props);
imapSession.setDebug(true);
IMAPStore store = new IMAPStore(imapSession, null);
Authenticator auth = new SMTPAuthenticator();  

Session session = Session.getInstance(props, auth);
session.setDebug(true);
// -- Create a new message --  
Store store1=imapSession.getStore("imap");  
store1.connect(imapServ,userName,password);  

Folder folder=store1.getFolder("INBOX");  
folder.open(Folder.READ_ONLY);  

Message mess[]=folder.getMessages();  

for(int i=mess.length-1;i>=0;i--)  
{  
System.out.println(""+i+":"+mess[i].getFrom()[0]+"t"+mess[i].getSubject());   
}  

Message msg = new MimeMessage(session);  

// -- Set the FROM and TO fields --  
msg.setFrom(new InternetAddress(from));  

String rec[]=to.split(",");  
for(int i=0;i<rec.length;i++)  
{  
System.out.println("rec:"+rec[i]);  

msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(rec[i], false));  
msg.setSubject(subject);  
msg.setText(message);  
// -- Set some other header information --  
msg.setHeader("Mail", "MailApi" );  
msg.setSentDate(new Date());  
// -- Send the message --  
Transport.send(msg);  
System.out.println("Message sent to"+ rec[i]+" OK." );  
}
return 0;  
}
catch (Exception ex)  
{
ex.printStackTrace();  
System.out.println("Exception "+ex);  
return -1;  
}
}


private class SMTPAuthenticator extends javax.mail.Authenticator {  
@Override  
public PasswordAuthentication getPasswordAuthentication() {  
String username =userName;          
String pass =password;                                    
return new PasswordAuthentication(username, pass);  
}
}

public static void main(String[] args) {
Mail m = new Mail();
m.sendMail();
}

}

我收到错误

  

异常javax.mail.AuthenticationFailedException：AUTHENTICATE   失败。

任何想法如何解决此错误？

Answer 1

您已登录IMAP服务器，然后使用SMTP发送电子邮件，但尚未配置SMTP服务器。您还注释了一些可以设置＆＃34; imap＆＃34;和运输一样。那永远不会奏效; ＆＃34; IMAP＆＃34;是一个商店协议，＆＃34; smtp＆＃34;是一种传输协议。

您对一堆电子邮件基础知识感到困惑。您可能希望花些时间使用JavaMail FAQ和JavaMail sample programs。

AuthenticationFailedException通常表示服务器认为您没有提供正确的用户名和密码。打开JavaMail Session debugging以获取有关失败的详细信息。