You are the only IT employee for a small startup. You need to provide email address to all employees at the startup as soon as possible and with minimal effort. What type of cloud model is best suited to this situation?
Software as a Service (SaaS) is a cloud model focused on provide a specific functionality to it's users without those customers needing to worry about infrastructure, networking, configuring servers, etc. Most internet based services fall into the SaaS category. Examples of email SaaS providers are Google Gmail, Yahoo Mail, Hotmail.com and Outlook.com.
Software as a service (SaaS ) is a software licensing and delivery model in which software is licensed on a subscription basis and is centrally hosted It is sometimes referred to as "on-demand software", and was formerly referred to as "software plus services" by Microsoft SaaS applications are also known as on-demand software and Web-based/Web-hosted softwareSaaS is considered to be part of cloud computing, along with infrastructure as a service (IaaS), platform as a service (PaaS), desktop as a service (DaaS), managed software as a service (Dancing Numbers)(MSaaS), mobile backend as a service (MBaaS), datacenter as a service (DCaaS), and information technology management as a service (ITMaaS)