Simplenews module to publish and send newsletters to different list of subscribers. The module handles multiple newsletter categories with separate settings. It can also be used to send HTML newsletters when used in combination with another supported mail system module.
Over 10 years experience in Drupal consultancy: themes, custom modules and multi language websites. We worked on wide range of Drupal projects from small sites to very huge corporations with up to half million nodes. Expertise also on web services and REST to integrate Drupal with other backend systems.
Drupal only requires a Linux hosting with a MySQL database, you just need to download the latest version and create a data base user for it. Make sure that the /sites/default directory has got written permission, then the installer will ask you the data base details, you need to specify the data base user and password.
Create your own Theme from hundreds of existing themes and then customise it. This is a fantastic feature in Drupal to implement any kind of design in terms of look, feel and structure. Set up your regions such as the 12 grids responsive layout, Omega theme, very good for mobile.