Sending Email in C# using CRM

public  bool Run()
		{
         bool success = false;
 
         try
         {
 
            CrmService service = new CrmService();
            service.Credentials = System.Net.CredentialCache.DefaultCredentials;
 
            // Get the ID of the system user.
            WhoAmIRequest userRequest = new WhoAmIRequest();
            WhoAmIResponse user = (WhoAmIResponse) service.Execute(userRequest);
 
            #region Setup Data Required for this Sample
 
            // Create an email message.
            email email = new email();
            email.torecipients = "someone@example.com";
            email.subject = "Please disregard now ";
            email.description = "This is a test message. Please disregard now ";
 
            CrmBoolean direction = new CrmBoolean();
            direction.Value = true;
            email.directioncode = direction;
 
            TargetCreateEmail targetCreate = new TargetCreateEmail();
            targetCreate.Email = email;
 
            CreateRequest request = new CreateRequest();
            request.Target = targetCreate;
 
            CreateResponse response = (CreateResponse)service.Execute(request);
            Guid emailID = response.id;
 
            #endregion
 
            // Specify the system user who is sending the message.
            service.CallerIdValue = new CallerId();
            service.CallerIdValue.CallerGuid = new Guid("08a3c4ce-98a7-dc11-be35-0018f80b1359"); //user.UserId;
 
            // Create a SendEmail request.
            SendEmailRequest req = new SendEmailRequest();
                        req.EmailId = emailID;
            req.TrackingToken = "";
            req.IssueSend = true;
 
            // Send the email message.
            SendEmailResponse res = (SendEmailResponse)service.Execute(req);
 
            #region check success
 
            if( !res.Subject.Equals(""))
               success = true;
 
            #endregion
 
            #region Remove Data Required for this Sample
 
            // Delete the email message.
            service.Delete(EntityName.email.ToString(), emailID);
         
            #endregion
         }
         catch(System.Web.Services.Protocols.SoapException)
         {
            // Perform error handling here.
         }
 
         return success;
}