一、         安装配置Sendmail

//-------------------------邮件服务器主程序sendmail和配置工具-------------------------//

#rpm   -ivh sendmail-8.12.8-4.i386.rpm

#rpm   -ivh m4-1.4.1-13.i386.rpm

#rpm   -ivh sendmail-cf-8.12.8-4.i386.rpm

#rpm   -ivh sendmail-doc-8.12.8-4.i386.rpm

//简单配置

#vi /etc/mail/sendmail.cf

O DaemonPortOptions=Port=smtp,Addr=127.0.0.1,Name=MTA

O DaemonPortOptions=Port=smtp,Addr=127.0.0.1,Name=MTA   //添加此句

//启动服务器

#service sendmail start

//检验sendmail是否启动

#pstree|grep sendmail

    |-2*[sendmail]       //表示成功启动

//-------------------------IMAP协议---POP3协议模块----------------------//

#rpm   -ivh imap-2001a-18.i386.rpm

//修改imap和pop3的配置

#vi /etc/xinetd.d/ipop3

disable=yes          改为   disable=no

#vi /etc/xinetd.d/imap

disable=yes          改为   disable=no

#vi /etc/xinetd.d/ipop2

disable=yes          改为   disable=no

#vi /etc/xinetd.d/pop3s

disable=yes          改为   disable=no

#vi /etc/xinetd.d/imaps

disable=yes          改为   disable=no

//重新启动xinetd

#service xinetd restart

//-------------------------继续配置sendmail------------ local-host-names ----------//

#vi /etc/mail/local-host-names

//内容如下

nihao.dlut.edu.cn

Nihao.dlut.edu.cn

localhost

localhost.localdomain

[127.0.0.1]

[202.118.75.92]                    //注释：nihao.dlut.edu.cn的IP地址就是202.118.75.92

#service sendmail restart       //重新启动sendmail

//--------------------------修改access文件---------------------------------------//

//文件内容如下

localhost.localdomain       RELAY

localhost                RELAY

127.0.0.1                RELAY

nihao.dlut.edu.cn        OK

263.com                  RELAY

163.com                  RELAY

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