config smtp server using sendmail

service saslauthd restart
service sendmail restart

PHPMailer
http://sourceforge.net/projects/phpmailer/files/

redhat下的sendmail+smtp 的配置
http://www.myfaq.com.cn/2005September/2005-09-13/198608.html

用Sendmail配置你的第一台e-mail服务器
http://www.5dmail.net/html/2004-10-26/20041026133839.htm

Configuring Linux Mail Servers
http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch21_:_Configuring_Linux_Mail_Servers