RCPT TO temprorary lookup failure on postfix

So i already set the MX record on my dns server, set /etc/hosts, set the main.cf, and start the postfix and mysql server. When i telnet the localhost , it says ok when i do mail from command but when i do rcpt to command, it says temprorary lookup failure. I’m using openSUSE 13.2 x86_64 connected via lan.

You need to look at your /var/log/mail (if you installed syslog manually on 13.2) or journalctl -u postfix (if you run vanilla 13.2 with the normal journal) for errors.

Most likely your DNS isn’t working, postfix permissions are incorrect, your postfix configuration is incorrect (regarding your domain or targets it accepts). Without logs, it’s impossible to say.