Here I am going to explain step by step Zimbra 8.8.15 installation in Ubuntu server LTS 18.04.

Zimbra Mail Server

How To Install Zimbra Mail server on ubuntu 18.04 LTS

Zimbra is a free & open-source mail server 

First we need to install Ubuntu server

After installation ubuntu server we need to update and upgrade ubuntu server

Sudo apt-get update

Sudo apt-get upgrade

hostnamectl set-hostname mail.querypanel.com

or we can set via manually editing /etc/hosts files

vi /etc/hosts

Disable,Stop & Remove Systemd-resolve service

shariq@mail:~$ sudo apt-get update -y

shariq@mail:~$ sudo apt-get upgrade –y

shariq@mail:~$ hostnamectl set-hostname mail.querypanel.com

shariq@mail:~$ echo “server-ip mail.querypanel.com” | sudo tee -a /etc/hosts

shariq@mail:~$ systemctl disable systemd-resolved

shariq@mail:~$ sudo rm /etc/resolv.conf

shariq@mail:~$ sh -c ‘echo nameserver 8.8.8.8 >> /etc/resolv.conf’

or

shariq@mail:~$ sh -c ‘echo nameserver 127.0.0.1 >> /etc/resolv.conf’

shariq@mail:~$ sudo apt-get install dnsmasq

shariq@mail:~$ sudo vi /etc/dnsmasq.conf

server=213.42.20.20

server=195.229.241.222

domain=querypanel.com

mx-host=querypanel.com,mail.querypanel.com,5

listen-address=127.0.0.1

(Here I am using Etisalat Service provider DNS )

shariq@mail:~$ systemctl restart dnsmasq

shariq@mail:~$ wget https://files.zimbra.com/downloads/8.8.15_GA/zcs-8.8.15_GA_3869.UBUNTU18_64.20190918004220.tgz

shariq@mail:~$ ls

shariq@mail:~$ tar -xvf zcs-8.8.15_GA_3869.UBUNTU18_64.20190918004220.tgz

shariq@mail:~$ cd zcs-8.8.15_GA_3869.UBUNTU18_64.20190918004220/

shariq@mail:~/zcs-8.8.15_GA_3869.UBUNTU18_64.20190918004220$ sudo ./install.sh

Administrator page zimbra

User page zimbra

Server status

Advanced Statistics

Server status

Email accounts

Configure

Configure – Domains

Domain General Info

GAL