In this tutorial, How to install zimbra 8.8 on centos 6 step by step. To install zimbra mail server on single-server. Link to below you maybe likes: How to install and configure zimbra multi server zimbra some services are not running [Solve problem] How to Restrict Sending to Distribution list in zimbra mail Zimbra 8.6 restrict to user sending mail to certain domain To prepare for zimbra 8.8 To configrue ip address static. To configrue /etc/resolv.conf file. To configrue /etc/sysconfig/network file. To configure /etc/hosts file. To install the dependency. # yum -y update # yum -y install perl perl-core wget screen w3m elinks openssh-clients openssh-server unzip nmap sed nc sysstat libaio rsync telnet aspell ntp openssh-clients Disable service sendmail, postfix or SELINUX. # sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/sysconfig/selinux # setenforce 0 # service iptables stop # service ip6tables stop # chkconfig iptables off # chkcon