====== Send mail ======
<code>
{
        sleep 1
        echo "helo $1"
        sleep 1
        echo "mail from:$2"
        sleep 1
        echo "rcpt to:$3"
        sleep 1
        echo "data"
        sleep 1
        echo "subject: $4"
        sleep 1
        echo " "
        echo "$5"
        sleep 1
        echo "."
        sleep 1
        echo "QUIT"
} | telnet <MAILIP> 25
</code>