title: HTML Code Link within an Email to an Email Attachment
body: <p>Wondering if this is possible. Suppose an email is written in HTML for email clients to render. And  an anchor tag exists in the HTML code that is going to be parsed by the email client.</p>
  
  <p>One can reference resources (images, files, etc..) externally from servers. For instance, I can do
  Download PDF</p>
  
  <p>Is it possible to reference an attachment that was sent along with the email? So attach a PDF and have some tag in the email reference the attachment that's a part of the HTML code.</p>
  
  <p>I don't really want to hear "alternative" solutions. I pretty much want to hear yes/no.</p>