yum install sendmail-cf
启动saslauthd, 启动sendmail
/etc/init.d/saslauthd start
/etc/init.d/sendmail start
添加为开机自动启动服务:
chkconfig saslauthd on
chkconfig sendmail on
添加邮件账户
useradd edm -g mail -G users -s /sbin/nologin
passwd edm
dovecot pop3 服务
安装后配置: http://wiki2.dovecot.org/FrontPage?action=show&redirect=%E9%A6%96%E9%A1%B5