title: Bulk email sender and list management API
body: <p>I'm looking for a way to programmatically manage email lists and send large numbers of emails to these lists.  The general idea would be similar to how social networking sites send email notifications when a friend posts new content.  Since a user could have tens of thousands of followers, it doesn't seem realistic to send these directly from my application so I'm curious if there's a good way to handle this through a service provider.  My company is using Google apps but I'm not an expert on their API.  Our environment is ASP.NET MVC.</p>
  
  <p>Any advice is most appreciated!</p>