title: Email Validation iPhone SDK
body: <p>Assuming I have created <code>IBOutlet UITextField *emailValidate;</code></p>
  
  <p>And the empty method </p>
  
  <pre><code>-(IBAction)checkEmail:(id)sender {
  
  // Add email validation code here.
  
  }
  </code></pre>
  
  <p>And linked the File Owner file to the <code>TextField</code>, what code would I have to insert in the method to validate an email adress? checking that only one '@' is included, and only one '.' is included?</p>