title: Sending an email from swift 3
body: <p>I am trying to set up an app with send email option.</p>
  
  <p>I have this code:</p>
  
  <pre><code>import Foundation
  import MessageUI
  import UIKit
  
  class emailClass: UIViewController, MFMailComposeViewControllerDelegate {
      override func viewDidLoad() {
          super.viewDidLoad()
  
          if !MFMailComposeViewController.canSendMail() {
              print("Mail services are not available")
              return
          }        
          sendEmail() 
      }
  
      func sendEmail() {      
          let composeVC = MFMailComposeViewController()
          composeVC.mailComposeDelegate = self
          // Configure the fields of the interface.
          composeVC.setToRecipients(["address@example.com"])
          composeVC.setSubject("Hello!")
          composeVC.setMessageBody("Hello this is my message body!", isHTML: false)
          // Present the view controller modally.
          self.present(composeVC, animated: true, completion: nil)
      }
  
      func mailComposeController(controller: MFMailComposeViewController,
                             didFinishWithResult result: MFMailComposeResult, error: NSError?) {
          // Check the result or perform other tasks.
          // Dismiss the mail compose view controller.
          controller.dismiss(animated: true, completion: nil)
      }
  
      override func didReceiveMemoryWarning() {
          super.didReceiveMemoryWarning()
          // Dispose of any resources that can be recreated.
      }
  }
  </code></pre>
  
  <p>So I get this message: "Mail services are not available".
  Now I've logged in the simulator device in iCloud... So i think it should do it but it's not. Why isn't this working? Can you tell me whats wrong and how can I move forward?</p>