安装所需软件

安装步骤

divert(-1)
include(`/usr/share/sendmail-cf/m4/cf.m4')
VERSIONID(`linux setup for Red Hat Linux')dnl
OSTYPE(`linux')
dnl Uncomment and edit the following line if your mail needs to be sent out
dnl through an external mail server:
dnl define(`SMART_HOST',`smtp.your.provider')
define(`confDEF_USER_ID',``8:12'')dnl
undefine(`UUCP_RELAY')dnl
undefine(`BITNET_RELAY')dnl
dnl define(`confAUTO_REBUILD')dnl
define(`confTO_CONNECT', `1m')dnl
define(`confTRY_NULL_MX_LIST',true)dnl
define(`confDONT_PROBE_INTERFACES',true)dnl
define(`PROCMAIL_MAILER_PATH',`/usr/bin/procmail')dnl
define(`ALIAS_FILE', `/etc/mail/aliases')dnl
define(`STATUS_FILE', `/etc/mail/statistics')dnl
define(`UUCP_MAILER_MAX', `2000000')dnl
define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl
define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl
define(`confAUTH_OPTIONS', `A')dnl
TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5
LOGIN PLAIN')dnl
dnl define(`confCACERT_PATH',`/usr/share/ssl/certs')
dnl define(`confCACERT',`/usr/share/ssl/certs/ca-bundle.crt')
dnl define(`confSERVER_CERT',`/usr/share/ssl/certs/sendmail.pem')
dnl define(`confSERVER_KEY',`/usr/share/ssl/certs/sendmail.pem')
dnl define(`confTO_QUEUEWARN', `4h')dnl
dnl define(`confTO_QUEUERETURN', `5d')dnl
dnl define(`confQUEUE_LA', `12')dnl
dnl define(`confREFUSE_LA', `18')dnl
define(`confTO_IDENT', `0')dnl
dnl FEATURE(delay_checks)dnl
FEATURE(`no_default_msa',`dnl')dnl
FEATURE(`smrsh',`/usr/sbin/smrsh')dnl
FEATURE(`mailertable',`hash -o /etc/mail/mailertable.db')dnl
FEATURE(`virtusertable',`hash -o /etc/mail/virtusertable.db')dnl
FEATURE(redirect)dnl
FEATURE(always_add_domain)dnl
FEATURE(use_cw_file)dnl
FEATURE(use_ct_file)dnl
dnl The '-t' option will retry delivery if e.g. the user runs over his quota.
FEATURE(local_procmail,`',`procmail -t -Y -a $h -d $u')dnl
FEATURE(`access_db',`hash -T<TMPF> -o /etc/mail/access.db')dnl
FEATURE(`blacklist_recipients')dnl
EXPOSED_USER(`root')dnl
dnl This changes sendmail to only listen on the loopback device 127.0.0.1
dnl and not on any other network devices. Comment this out if you want
dnl to accept email over the network.
DAEMON_OPTIONS(`Port=smtp,Addr=0.0.0.0, Name=MTA')
dnl NOTE: binding both IPv4 and IPv6 daemon to the same port requires
dnl       a kernel patch
dnl DAEMON_OPTIONS(`port=smtp,Addr=::1, Name=MTA-v6, Family=inet6')
dnl We strongly recommend to comment this one out if you want to protect
dnl yourself from spam. However, the laptop and users on computers that do
dnl not have 24x7 DNS do need this.
FEATURE(`accept_unresolvable_domains')dnl
dnl FEATURE(`relay_based_on_MX')dnl
MAILER(smtp)dnl
MAILER(procmail)dnl

TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5
LOGIN PLAIN')dnl

# m4 sendmail.mc > sendmail.cf

# ./Build sendmail.cf

# ./Build install-cf

debian:~# cd /etc/mail
debian:/etc/mail# echo 'examply.com' >> local-host-names 接收邮件的主机名
debian:/etc/mail# echo 'localhost    RELAY'  >> access 用来拒绝或允许来自某个域的邮件，本例允许本地转发。
debian:/etc/mail# makemap hash access < access 生成access.db数据库
debian:/etc/mail# touch domaintable 用来把旧域名映射互新域名
debian:/etc/mail# makemap hash domaintable < domaintable
debian:/etc/mail# touch mailertable 来覆盖向指定域的路由
debian:/etc/mail# makemap hash mailertable < mailertable
debian:/etc/mail# touch trusted-users
debian:/etc/mail# touch virtusertable 用来把用户和域名映射到其它地址
debian:/etc/mail# makemap hash virtusertable < virtusertable
debian:/etc/mail# chown root:wheel /var/spool/mqueue/
debian:/etc/mail# chmod 700 /var/spool/mqueue
debian:/etc/mail# touch aliases 别名数据库，文本形式。可参照源码目录树下sendmail/aliases文件。
debian:/etc/mail# newaliases                  从文本文件中创建一个新的别名数据库文件。
debian:/etc/mail# sendmail -v -bi调试启动。
/etc/mail/aliases: 42 aliases, longest 10 bytes, 432 bytes total
如果出现以上提示信息，则启动成功。可用以下命令正式启动:
debian:/etc/mail# sendmail -bd -q30m
该命令以后台进程方式（-bd）运行，并使其每隔30分钟（-q30m）轮询一次未发送邮件队列，检查是否有新邮件。

debian:~# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 test.tigerhead ESMTP Sendmail 8.12.10/8.12.10; Tue, 30 Mar 2004 14:50:14 +0800
ehlo test你输入的命令，按回车结束。
250-test.tigerhead Hello LOCALHOST.localdomain [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH DIGEST-MD5 CRAM-MD5 LOGIN PLAIN
250-DELIVERBY
250 HELP
以250-开头的为服务器的响应信息。注意倒数第三行，这就是成功配置smtp验证的显示。
输入quit离开。

# chmod 0640 /etc/mail/aliases /etc/mail/aliases.{db,pag,dir}
# chmod 0640 /etc/mail/*.{db,pag,dir}
# chmod 0640 /etc/mail/statistics /var/log/sendmail.st
# chmod 0600 /var/run/sendmail.pid /etc/mail/sendmail.pid
-r-xr-sr-xroot   smmsp... /PATH/TO/sendmail
drwxrwx---smmsp  smmsp... /var/spool/clientmqueue
drwx------root   wheel... /var/spool/mqueue
-r--r--r--root   wheel... /etc/mail/sendmail.cf
-r--r--r--root   wheel... /etc/mail/submit.cf

package sendmail;

import java.io.UnsupportedEncodingException;
import java.util.Properties;
import java.util.Date;
import java.util.ArrayList;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
import java.net.MalformedURLException;
import java.net.URL;
/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: Peking University </p>
 * @author 汪建伟
 * @version 1.0
 */

public  class Mail{
   
    protected ArrayList bodypartArrayList=null;
    protected Multipart multipart = null;
    protected MimeMessage mailMessage = null;
    protected Session mailSession = null;
    protected Properties mailProperties = System.getProperties();
    protected InternetAddress mailFromAddress = null;
    protected InternetAddress mailToAddress = null;
    protected String mailSubject ="";
    protected Date mailSendDate = null;
    private String smtpserver="";
    private String name="";
    private String password="";
   
    public Mail(String smtpHost,String username,String password){
     smtpserver=smtpHost;
     name=username;
     this.password=password;
        mailProperties.put("mail.smtp.host",smtpHost);
        mailProperties.put("mail.smtp.auth","true"); //设置smtp认证，很关键的一句
        mailSession = Session.getDefaultInstance(mailProperties);
        //mailSession.setDebug(true);
       
        mailMessage = new MimeMessage(mailSession);
        multipart = new MimeMultipart();
        bodypartArrayList=new ArrayList();//用来存放BodyPart，可以有多个BodyPart！
    }
    //设置邮件主题
    public void setSubject(String mailSubject)throws MessagingException{
        this.mailSubject = mailSubject;
        mailMessage.setSubject(mailSubject);
    }
    //设置邮件发送日期
    public void setSendDate(Date sendDate)throws MessagingException{
        this.mailSendDate = sendDate;
        mailMessage.setSentDate(sendDate);
    }
    //发送纯文本
    public void addTextContext(String textcontent)throws MessagingException{
     BodyPart bodypart=new MimeBodyPart();
     bodypart.setContent(textcontent,"text/plain;charset=GB2312");
     bodypartArrayList.add(bodypart);
    }
    //发送Html邮件
    public void addHtmlContext(String htmlcontent)throws MessagingException{
     BodyPart bodypart=new MimeBodyPart();
     bodypart.setContent(htmlcontent,"text/html;charset=GB2312");
     bodypartArrayList.add(bodypart);
    }
    //将文件添加为附件
    public void addAttachment(String FileName/*附件文件名*/,String DisplayFileName/*在邮件中想要显示的文件名*/)
        throws MessagingException,UnsupportedEncodingException{
     BodyPart bodypart=new MimeBodyPart();
        FileDataSource fds=new FileDataSource(FileName);
       
        DataHandler dh=new DataHandler(fds);
        String displayfilename="";
  displayfilename = MimeUtility.encodeWord(DisplayFileName,"gb2312", null);//对显示名称进行编码，否则会出现乱码！
  
  bodypart.setFileName(displayfilename);//可以和原文件名不一致
        bodypart.setDataHandler(dh);
     bodypartArrayList.add(bodypart);
    }
    //将byte[]作为文件添加为附件
    public void addAttachmentFrombyte(byte[] filebyte/*附件文件的字节数组*/,String DisplayFileName/*在邮件中想要显示的文件名*/)
        throws MessagingException,UnsupportedEncodingException{
     BodyPart bodypart=new MimeBodyPart();
     ByteDataSource fds=new ByteDataSource(filebyte,DisplayFileName);
      
        DataHandler dh=new DataHandler(fds);
        String displayfilename="";
  displayfilename = MimeUtility.encodeWord(DisplayFileName,"gb2312", null);//对显示名称进行编码，否则会出现乱码！
  
  bodypart.setFileName(displayfilename);//可以和原文件名不一致
        bodypart.setDataHandler(dh);
     bodypartArrayList.add(bodypart);
    }

   
    //使用远程文件（使用URL）作为信件的附件
    public void addAttachmentFromUrl(String url/*附件URL地址*/,String DisplayFileName/*在邮件中想要显示的文件名*/)
        throws MessagingException,MalformedURLException,UnsupportedEncodingException{
     BodyPart bodypart=new MimeBodyPart();
        //用远程文件作为信件的附件
        URLDataSource ur= new URLDataSource(new URL(url));
        //注:这里用的参数只能为URL对象,不能为URL字串
  DataHandler dh=new DataHandler(ur);
  String displayfilename="";
        displayfilename=MimeUtility.encodeWord(DisplayFileName,"gb2312", null);
  bodypart.setFileName(displayfilename);//可以和原文件名不一致
  bodypart.setDataHandler(dh);
  bodypartArrayList.add(bodypart);
    }

   
    //设置发件人地址
    public void setMailFrom(String mailFrom)throws MessagingException{
        mailFromAddress = new InternetAddress(mailFrom);
        mailMessage.setFrom(mailFromAddress);
    }
    //设置收件人地址，收件人类型为to,cc,bcc(大小写不限)
    public void setMailTo(String[] mailTo,String mailType)throws Exception{
        for(int i=0;i<mailTo.length;i++){
            mailToAddress = new InternetAddress(mailTo[i]);
            if(mailType.equalsIgnoreCase("to")){
                mailMessage.addRecipient(Message.RecipientType.TO,mailToAddress);
            }
            else if(mailType.equalsIgnoreCase("cc")){
                mailMessage.addRecipient(Message.RecipientType.CC,mailToAddress);
            }
            else if(mailType.equalsIgnoreCase("bcc")){
                mailMessage.addRecipient(Message.RecipientType.BCC,mailToAddress);
            }
            else{
                throw new Exception("Unknown mailType: "+mailType+"!");
            }
        }
    }
    //开始投递邮件
    public void sendMail()throws MessagingException,SendFailedException{
     for (int i=0;i<bodypartArrayList.size();i++) {
      multipart.addBodyPart((BodyPart)bodypartArrayList.get(i)); 
     }
     mailMessage.setContent(multipart);
        mailMessage.saveChanges();
        Transport transport=mailSession.getTransport("smtp");
        transport.connect(smtpserver,name,password);//以smtp方式登录邮箱
        transport.sendMessage(mailMessage,mailMessage.getAllRecipients());
        //发送邮件,其中第二个参数是所有已设好的收件人地址
        transport.close();
    }

}

//文件 ByteDataSource.java 该文件内容由汪建伟原创。转载请注明！

package sendmail;

/**
 * <p>Title: </p>
 * <p>Description: 发邮件</p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: Peking University </p>
 * @author 汪建伟
 * @version 1.0
 */
import javax.activation.DataSource;
import java.io.*;
public class ByteDataSource implements DataSource{
 private byte[] filebyte=null;
    private String filetype="application/octet-stream";
    private String filename="";
    private OutputStream outputstream=null;
    private InputStream  inputstream=null;
    public ByteDataSource() {
    }
    public ByteDataSource(String FileName) {
     File f=new File(FileName);
      filename=f.getName();
     try {
   inputstream = new FileInputStream(f);
   inputstream.read(filebyte);
   
  } catch (Exception e) {
  }
  
    }

    public ByteDataSource(byte[] filebyte,String displayfilename) {
        this.filebyte=filebyte;
        this.filename=displayfilename;
    }
    public String getContentType() {
        return filetype;
    }

    publicInputStreamgetInputStream() throws IOException {
     InputStream input=new ByteArrayInputStream(filebyte);
        return input;
    }

    public String getName() {
        return filename;
    }

    public OutputStream getOutputStream() throws IOException {
     
     outputstream.write(filebyte);
        return outputstream;
    }
}
//newSendMail.java 发邮件示例

  package sendmail;

/**
 * <p>Title: </p>
 * <p>Description: 发邮件示例</p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: Peking University </p>
 * @author 汪建伟
 * @version 1.0
 */

import java.io.FileWriter;
import java.io.IOException;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.io.PrintWriter;
import java.io.BufferedWriter;
import java.io.*;
public class newSendMail {
  public static void main(String[] args) {
     Mainprogram1 w1= new Mainprogram1();
 
     w1.sendmail() ;
 
  
  }
}

class Mainprogram1{
 
  private  java.util.Date sysdate;
  Mainprogram1(){
      //获取要查询的起止时间
      sysdate = new java.util.Date();
     }

  public void sendmail(){ //创建邮件发送实例，发送邮件
    String smtp = "smtp.163.com";//邮件服务器地址
    String mailname = "";//连接邮件服务器的用户名
    String mailpsw = "";//连连接邮件服务器的用户密码
    String mailto = "";// 接收邮件的地址
    String copyto = "";// 抄送邮件的地址
    String mailfrom = "";// 发送邮件的地址
    String mailtitle = "测试邮件标题";// 邮件的标题
     //请根据实际情况赋值
    Mail mymail= new Mail(smtp,mailname, mailpsw);
    String mto[]={mailto};
    String mcc[]={copyto};
    try{
       mymail.setMailFrom(mailfrom);
       mymail.setSendDate(new Date());
       mymail.setMailTo(mto,"to");
       if (!copyto.matches("")){ //如果抄送不为空，则将信件抄送给copyto
           mymail.setMailTo(mcc,"cc");
       }
       mymail.setSubject(mailtitle);
       mymail.addTextContext("邮件内容");
       mymail.addHtmlContext("html内容");
       mymail.addAttachment("c:\\测试附件.doc","测试附件.doc");
       mymail.addAttachmentFromUrl("http://162.105.109.163/getimg?imgid=148","图片文件.jpg");
       mymail.addAttachmentFromUrl("http://www.pku.edu.cn/","北大主页.htm");
      
       //下面的附件内容来自一个byte[]类型，增加这个方法的意图在于如果在web模式下发邮件，就不用生成临时文件
       //直接将上载的文件保存成byte[]格式，然后使用该方法添加到邮件的附件中，进行发送
       InputStreaminputStream=null;
     try {
     File imageFile = new File("c:\\1.jpg");
         inputStream = new FileInputStream(imageFile);
      } catch(IOException ei){}
  
    try {
     byte[] b=new byte[inputStream.available()];
   
     inputStream.read(b);
     mymail.addAttachmentFrombyte(b,"来自byte的附件.jpg");
    
  
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
      
      
      
       mymail.sendMail() ;
       WriteinfoToFile("邮件发出！");
    }
    catch (Exception ex){ WriteinfoToFile("邮件发送失败！"+ex.toString());}
  }

   //向ini文件中写提示信息
  private void WriteinfoToFile(String info){
    try{
      PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter("mailinfo.txt",true)));
      pw.println(sysdate.toString()+" "+info);
      pw.close();
    }
    catch(IOException ei){
      System.out.println(sysdate.toString()+ " 向mailinfo.txt文件中写数据错误:"+ei.toString());
      System.exit(0);
    }
  }
}