title: Gmail/Hotmail Flag email as spam
body: <p>I have a simple .NET app that is sending out email using SMTPClient.</p>
  
  <p>I am sending from an authenticated account on the local server with an SPF record, and the host (gogrid) is unsure what else they can do to solve the problem.</p>
  
  <p>Any email from my simple app is flagged as spam, but any other email sent using that smtp server, or through squirrelmail, etc, comes through fine.  So there must be something that apps like squirrelmail are doing that I'm missing.</p>
  
  <p>Has anyone else encountered and/or solved this problem?</p>