title: How to build a Apple Mail bundle with Xcode?
body: <p>I know that mail.app plugins aren't offically supported by Apple, nevertheless there is the possibility to execute plugins and some are doing that by using python-applications (e.g. <a href="http://eaganj.free.fr/weblog/?post/2009/07/14/Demystifying-Mail.app-Plugins-on-Leopard" rel="noreferrer">http://eaganj.free.fr/weblog/?post/2009/07/14/Demystifying-Mail.app-Plugins-on-Leopard</a>).</p>
  
  <p>But because Apple is giving the possibility to use a great tool like Xcode, I would rather work with that tool. My question is: What type of project do I have to choose and which settings have to be done to create a mail-plugin with Xcode?</p>