[root@centos home]# telnet 127.0.0.1 25 Trying 127.0.0.1… Connected to localhost.localdomain (127.0.0.1). Escape character is ‘^]’. 220 centos.centos.com ESMTP Postfix HELO webserverpage.com 250 mail.webserverpage.com MAIL FROM: <barrack.obama@usa.com> 250 ok RCPT TO: <choi@webserverpage.com> 250 ok DATA 354 go ahead From: “Barrack Obama” Subject: President Message Peace! . 250 ok 1354599764 qp 21307