Zimbra Collaboration's initial setup phase was easy. For some architectures, you should be a good technician, and you should be able to study the architecture of Zimbra to know what you install. On a scale of one to ten, where one is difficult, and ten is easy, I rate the setup phase a six. I work at companies using Zimbra and offer support for Zimbra. I use Zimbras' on-premises and cloud versions. The time taken to deploy Zimbra Collaboration depends on an organization's architecture and its complexity. To deploy it on only one simple server, we need two or three hours. When you have a complicated architecture, deployment can take a few days. We can use one person to deploy Zimbra Collaboration for a complex architecture, but when you want to speed up the process and do the deployment faster, we can use two or three people. The number of people for deployment depends on an organization and its architecture.