mkdir ~/tmp && cd ~/tmp
To download bash script you can here: autoresponse-1.6.3.tar.gz
tar xvfz autoresponse-1.6.3.tar.gz
useradd -d /var/spool/autoresponse -s `which nologin` autoresponse
mkdir -p /var/spool/autoresponse/log /var/spool/autoresponse/responses
cp -v autoresponse/autoresponse /usr/local/sbin/
chown -R autoresponse.autoresponse /var/spool/autoresponse
chmod -R 0770 /var/spool/autoresponse


vim /etc/postfix/master.cf

smtp      inet  n       -       n       -       -       smtpd
        -o content_filter=autoresponder:dummy


autoresponder unix - n n - - pipe
  flags=Fq user=autoresponse argv=/usr/local/sbin/autoresponse -s ${sender} -r ${original_recipient} -S ${sasl_username} -C ${client_address}

postfix check
service postfix restart

autoresponse -e [email protected]
autoresponse -d [email protected]
autoresponse -E [email protected]
autoresponse -D [email protected]