如何從我們的域名地址（[email protected]）使用JavaMail API

Question

我想使代碼可以通過usibg的JavaMail API發送恢復密碼，從ABC一樣都是我的官方域名地址發送發送郵件恢復到任何用戶的電子郵件@ xyz.com。

我去一些編碼像使用smtp.gmail.com

本 BLOG我提到將郵件發送到任何用戶的電子郵件地址。

this structure i want: 

from : deepu@exxxxtechnology.com-----(not deepu@gmail.com ) 
to: anyuser@anydomain.com, user@gmail.com/user@hotmail.com /user@yahoomail.com 

is it possible ? 

Answer 1

爲此，您需要服務器安全證書爲您的smtp服務器，您需要購買或獲取某處。

Answer 2

/* 
* EMailSender.java 
* 
*/ 
package com.projectName.mail; 

import javax.mail.*; 
import javax.mail.internet.InternetAddress; 
import javax.mail.internet.MimeMessage; 

import java.io.FileInputStream; 
import java.io.IOException; 
import java.security.Security; 
import java.sql.SQLException; 
import java.util.Properties; 

public class EMailSender { 

private final static String SMTP_HOST_NAME = "smtp_host_name"; 
private final static String SMTP_AUTH = "smtp_auth"; 
private final static String DEBUG = "debug"; 
private final static String SMTP_PORT = "smtp_port"; 
private final static String SMTP_SOCKETFACTORY_PORT = "smtp_socketfactory_port"; 
private final static String SMTP_SOCKETFACTORY_CLASS = "smtp_socketfactory_class"; 
private final static String SMTP_SOCKETFACTORY_FALLBACK = "smtp_socketfactory_fallback"; 
private final static String EMAIL_SENDER = "email_sender"; 
private final static String EMAIL_SENDER_PASSWORD = "email_sender_password"; 
private Properties _emailproperties = null; 

/** Creates a new instance of GoogleMailSender */ 
public EMailSender(Properties emailProperties) { 
    _emailproperties = emailProperties; 
    Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider()); 
} 

/** 
* Sends email using SSL protocol. 
* 
* @param recipient 
*   The mail address of the recipient. Recipient is the person who 
*   will receive the mail. 
* @param subject 
*   The subject of the mail. 
* @param message 
*   The content of the message. 
* @throws MessagingException 
*    Problem during sending message. 
*/ 
public void sendSSLMessageAuthenticated(String recipient, String subject, String message) 
     throws MessagingException { 
    Properties props = new Properties(); 
    props.put("mail.smtp.host", _emailproperties 
      .getProperty(SMTP_HOST_NAME)); 
    props.put("mail.smtp.auth", _emailproperties.getProperty(SMTP_AUTH, 
      "true")); 
    props.put("mail.debug", _emailproperties.getProperty(DEBUG, "false")); 
    props.put("mail.smtp.port", _emailproperties.getProperty(SMTP_PORT)); 
    props.put("mail.smtp.socketFactory.port", _emailproperties 
      .getProperty(SMTP_SOCKETFACTORY_PORT)); 
    props.put("mail.smtp.socketFactory.class", _emailproperties 
      .getProperty(SMTP_SOCKETFACTORY_CLASS)); 
    props.put("mail.smtp.socketFactory.fallback", _emailproperties 
      .getProperty(SMTP_SOCKETFACTORY_FALLBACK, "false")); 

    // props.setProperty("proxySet", "true"); 
    // props.setProperty("http.proxyHost", "111.111.111.111"); 
    // props.setProperty("http.proxyPort", "81"); 

    final String sender = _emailproperties.getProperty(EMAIL_SENDER); 
    final String password = _emailproperties.getProperty(
      EMAIL_SENDER_PASSWORD, ""); 

    Session session = Session.getDefaultInstance(props, 
      new javax.mail.Authenticator() { 

       protected PasswordAuthentication getPasswordAuthentication() { 
        return new PasswordAuthentication(sender, password); 
       } 
      }); 

    Message msg = new MimeMessage(session); 
    InternetAddress addressFrom = new InternetAddress(sender); 
    msg.setFrom(addressFrom); 

    InternetAddress addressTo = new InternetAddress(recipient); 
    msg.setRecipient(Message.RecipientType.TO, addressTo); 
    msg.setSubject(subject); 
    msg.setContent(message, "text/plain"); 
    Transport.send(msg); 
} 

/** 
* Sends email using SSL protocol. 
* 
* @param recipient 
*   The mail address of the recipient. Recipient is the person who 
*   will receive the mail. 
* @param subject 
*   The subject of the mail. 
* @param message 
*   The content of the message. 
* @throws MessagingException 
*    Problem during sending message. 
*/ 
public void sendMessageUnauthenticated(String recipient, String subject, 
     String message) throws MessagingException { 
    Properties props = new Properties(); 
    props.put("mail.smtp.host", _emailproperties 
      .getProperty(SMTP_HOST_NAME)); 
    props.put("mail.smtp.auth", _emailproperties.getProperty(SMTP_AUTH, 
      "false")); 
    props.put("mail.debug", _emailproperties.getProperty(DEBUG, "false")); 
    props.put("mail.smtp.port", _emailproperties.getProperty(SMTP_PORT)); 

    final String sender = _emailproperties.getProperty(EMAIL_SENDER); 

    Session session = Session.getDefaultInstance(props, null); 

    Message msg = new MimeMessage(session); 
    InternetAddress addressFrom = new InternetAddress(sender); 
    msg.setFrom(addressFrom); 

    InternetAddress addressTo = new InternetAddress(recipient); 
    msg.setRecipient(Message.RecipientType.TO, addressTo); 
    msg.setSubject(subject); 
    msg.setContent(message, "text/plain"); 
    Transport.send(msg); 
} 

/** 
* test the function(including {@codeutil.portal} in {@codeutil.test} caused 
* some problems so test is done via the main method) 
* 
* @param args 
* @throws IOException 
* @throws MessagingException 
* @throws SQLException 
*/ 
public static void main(final String args[]) throws IOException, 
     MessagingException { 
    EMailSender _emailSender = null; 
    Properties portalProperties = new Properties(); 
    FileInputStream fis = new FileInputStream(
      "C:\\project_home\\mail.properties"); 
    portalProperties.load(fis); 
    fis.close(); 
    _emailSender = new EMailSender(portalProperties); 
    _emailSender.sendMessageUnauthenticated("test@gmail.com", 
      "Test!", "Send by TestEmailSender!"); 
} 

}

填寫屬性文件或使其硬編碼。