title: Where to place the Emailer class in the solution?
body: <p>I have a solution that has the following structure:</p>
  
  <pre><code>- My Solution
  -- Core
  --- Core.Interfaces (DLL)
  --- Core.Data (DLL)
  --- Core.Business (DLL)
  -- Models
  --- Models.Enums (DLL)
  --- Models.DTOs (DLL)
  --- Models.Model (DLL)
  -- Clients
  --- Client Access (ASP.NET MVC)
  --- Management Access (ASP.NET)
  </code></pre>
  
  <p>Now I have an emailer class (IEmailer and Emailer) that will be used in both clients and mainly in the Core.Business as well, my initial thought is to place it in the Core.Business project. </p>
  
  <p>Is that the logical place for the emailer class?</p>