I want to send monthly newsletter to subscribers via Drupal. The website has lots of content types (news, events, books, courses, blog posts etc.). If the site has only one content type it would be easy to prepare this newsletter with Simplenews module or Mailchimp etc.
Because the site is so complex and needed to create some specific views for each content type I wonder if is it better to prepare custom newsletter manually (without Drupal interface) or is there any solution to send newsletter via Drupal interface, "easily" and automatically?