http://www.howtoforge.com/perfect-server-ubuntu8.04-lts-p5 Code: If you see the lines 250-STARTTLS and 250-AUTH LOGIN PLAIN everything is fine. The output on my system looks like this: root@server1:/etc/postfix/ssl# telnet localhost 25 Trying 127.0.0.1... Connected to localhost.localdomain. Escape character is '^]'. 220 server1.example.com ESMTP Postfix (Ubuntu) ehlo localhost 250-server1.example.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN quit 221 2.0.0 Bye Connection closed by foreign host. root@server1:/etc/postfix/ssl# i dont see the "auth logn plain" what should i do? reconfigure postfix? Edit:i just reconfigured potfix, everything is good. Sorry for wasting space