Answer: SaaS is an example of hosted email infrastructure.
Cloud technology has come into more and more use nowadays. It is cheaper and quicker. Many email services use the cloud to offer storage facilities to their clients.
The cloud offers Software as a Service (SaaS) to the clients. Hosted email infrastructure, Gmail, Salesforce, Google Apps, Office 365, Citrix, GoTomeeting, Cisco WebEx, and Netflix are well-known examples of platforms using SaaS.
The service model of SaaS hosts different applications and makes them available to the users on the internet. The applications using SaaS are accessed using web browsers.