What is Web Hosting?
Imagine your website's Web Hosting as an "apartment" you rent.
It is the place in which your website can live. IP.GR, the company providing your web hosting services, is a "building" with many apartments with different features,which the company rents to its clients, depending on their needs.
Besides your website, i.e. the files consisting your site, web hosting services provided by IP.GR also includes your email. It is the service that gives you the ability to create email accounts ending in @your_domain and also provides you the storage space for the messages you will receive and send through these accounts.