build postfix mail server in Linux redhat6.5

Postfix is an e-mail server that was developed by the IBM Watson Research Center (T.J. Wietse Venema, a Dutch researcher at Watson Research Center, was created to improve the SendMail mail server. First appeared in the late 1990, is an open source software.
The experiment requires:
package postfix (send transfer message), Dovecot (Accept mail) bind (DNS resolution)
Experimental objectives:
Enable Zhangsan Lisi account through postfix to send emails to each other

 1：安装DNS   编辑named.conf

2: Edit Named.rfc1912.zones

3: Copy named.localhost named Benet.com.zone
Edit Benet.com.zone

4：编辑/etc/postfix/main.cf  （系统一般自带  如果没有使用rpm 安装）          inet_interfaces = all                          //监听服务的IP地址//        #inet_interfaces = localhost                      加#注释    myhostname = mail.benet.com                    //邮件服务器主机名//    mydomain = benet.com                           //邮件域名//    myorigin = $mydomain                           //发件人地址邮件域名//    mydestination = $mydomain, $myhostname         //收件人地址邮件域名//    home_mailbox = Maildir/                        //邮件存放位置//  

Process=image/watermark,size_16,text_qduxq1rp5y2a5a6i,color_ffffff,t_100,g_se,x_10,y_10,shadow_90,type_ zmfuz3pozw5nagvpdgk= "alt=" Linux redhat6.5 build postfix mail Server "/>

5：重启postfix 服务    安装dovecot软件包（接收邮件）

6: Edit Dovecot. conf

    protocols = imap pop3 lmtp   //开启协议//    login_trusted_networks = 192.168.100.0/24  //指定服务器所在网段//

7：编辑/etc/dovecot/conf.d/10-mail.conf        mail_location = maildir:~/Maildir //开启邮箱的位置及格式//  （去掉#号）        重启dovecot服务

8: Create a group mailusers
Create Accounts Zhangsan, Lisi and join the Mailusers group
Set the password for Zhangsan, Lisi

    9：测试下postfix邮件发送（用zhangsan 给lisi 发送邮件）    telnet 192.168.100.101 25    helo mail.benet.com    mail from:[email protected]    rcpt to:[email protected]    data    subject:hello lisi    my name is zhangsan

10：测试postfix邮件接收（登录lisi 查看zhangsan 发送的邮件）    telnet143  端口结束：OVER    telnet mail.benet.com 110    user lisi    pass 123456    list    retr 1    quit

11：去windows7中测试 准备2台 windows7     一台登录zhangsan   一台登录lisi 下载Foxmail安装包  安装 >手动设置  配置你的账户密码 和服务器IP 登录zhangsan 和lisi  帐号 进行测试

build postfix mail server in Linux redhat6.5