Zimbra Collaboration Suite is a collaborative software suite that includes an email server and web client. Use this guide to install it in Ubuntu server.
FaceITNet: Install Zimbra 8.6 on Ubuntu 15.04 Server
Install and Configure Zimbra Mail Server on Ubuntu 16 – TechiesJournal
The Complete Guide to Install Zimbra in CentOS7 - (OSE)
Zimbra Installation Documentation@ProcessMaker
Install Zimbra Collaboration Suite In Ubuntu
How To Install Open Source Zimbra Mail Server 8.8 on CentOS 7
How to Install Zimbra Collaboration 8.7 on Ubuntu 14.04 LTS
How to install Zimbra (Cloud-Hosted Collaboration Software) on
Attila Orosz, Author at Make Tech Easier
How to install Zimbra on Ubuntu 18.04 LTS
How to Install Zimbra Mail Server on CentOS 7 - Alibaba Cloud
How to Install Zimbra Collaboration Suite in Ubuntu Server
How to install Zimbra on Ubuntu 18.04 LTS
Install Zimbra Collaboration Suite 8.7 in Ubuntu 14.04 LTS - OSTechNix
How to Install Zimbra 9 on Ubuntu