How to Install and Configure Zimbra Open Source Mail Server on Ubuntu 20.04 LTS | Zimbra Mail Server

How to Install and Configure Zimbra Open Source Mail Server on Ubuntu 20.04 LTS:
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Minimum System Requirements for Zimbra:
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1. Intel/AMD 64-bit CPU 1.5 GHz
2. For single server installations, a minimum of 8GB of RAM is required.
Minimum system Requirement URL:
http://docs.zimbra.com/docs/shared/8.6.0/system_requirements/wwhelp/wwhimpl/js/html/wwhelp.htm#href=System_Requirements_86.System_Requirements_for_Zimbra_Collaboration.html

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Initial Server Setup:
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1. Set Date and Time:
timedatectl set-timezone Asia/Kolkata
2. Set Hostname:
hostnamectl set-hostname mail.linuxworldwithgk.tk
sudo -i
3. Modify /etc/hosts :
open /etc/hosts and make following entry in it.

127.0.0.1 localhost
172.31.43.8 mail.linuxworldwithgk.tk

172.31.45.120 -. Ip address of our mail server.
mail.linuxworldwithgk.com – FQDN of our Mail server
Please replace IP and FQDN
4. Update and upgrade Ubuntu server by following command
apt update && apt upgrade -y

5. Configuring DNS resolution:
You should have a domain name with A and Mx Record. If you have already DNS server then just need to Make entry of A and Mx record of of our Mail Server in DNS. In case if you do not have DNS server then you can use any DNS resolution server, including dnsmasq, systemd-resolved, and bind.
Here I will show you how to configure dnsmasq on ubuntu 20.04 LTS.
Steps to configure Dnsmasq:

1. Install Dnsmasq
apt install dnsmasq -y

2. Disable systemd-resolve
systemctl disable systemd-resolved
systemctl stop systemd-resolved

3. Recreate /etc/resolv.conf
rm -f /etc/resolv.conf
nano /etc/resolv.conf

5. Configure Dnsmasq:
nano /etc/dnsmasq.conf

Insert the following content at the bottom and don’t forget to replace the IP address and domain name

server=1.1.1.1
mx-host=linuxworldwithgk.tk,mail.linuxworldwithgk.tk,50
host-record=linuxworldwithgk.tk,172.31.43.8
host-record=mail.linuxworldwithgk.tk,172.31.43.8

Now save the file and restart dnsmasq by following command
systemctl restart dnsmasq.service

Zimbra 8.8.15 Open Source Installation on Ubuntu 20.4 LTS:

1. Download Binary Zimbra:
wget https://files.zimbra.com/downloads/8.8.15_GA/zcs-8.8.15_GA_4179.UBUNTU20_64.20211118033954.tgz

2. Next, you have to extract the content
tar xvzf zcs-8.8.15_GA_4179.UBUNTU20_64.20211118033954.tgz

3. Execute Zimbra Installation scrip
./install.sh

Thanks
Gautam Kumar
Email Id: gautam19nov1991@gmail.com

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by LinuxWorld with GK

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