/// <summary>
 /// Partially check whether an email address is valid
 /// </summary>
 /// Validate an email address by identifying whether its parent domain has
 /// email servers defined.  This call is less limited than syntaxOnly but not
 /// as comprehensive as address/full.
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='email'>
 /// Email address to validate, e.g. "*****@*****.**"
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task <AddressGetServersOKResponse> AddressGetServersAsync(this IEmail operations, string email, CancellationToken cancellationToken = default(CancellationToken))
 {
     using (var _result = await operations.AddressGetServersWithHttpMessagesAsync(email, null, cancellationToken).ConfigureAwait(false))
     {
         return(_result.Body);
     }
 }