private void btnSubmit_Click(object sender, RoutedEventArgs e)
        {
            Info   info         = new Info();
            string header       = txtHeader.Text;
            string emailSender  = txtSender.Text.Replace(" ", String.Empty);
            string subject      = txtSubject.Text;
            string message      = txtMessage.Text;
            bool   headerOk     = Message.HeaderOk(header);
            Regex  checkEmail   = new Regex(@"^([\w\.\-]+)@([\w\-]+)((\.(\w){2,3})+)$");
            Regex  checkSubject = new Regex("^SIR (0[1-9]|[12][0-9]|3[01])[/](0[1-9]|1[012])[- /.]()\\d\\d$");
            Match  emailMatch   = checkEmail.Match(emailSender);
            Match  SIRMatch     = checkSubject.Match(subject);

            if (!headerOk || !header.ToUpper().StartsWith("E"))
            {
                info.DisplayMessage("Incorrect Header", "Email Header must begin with 'E', followed by 9 numbers");
            }
            else if (!emailMatch.Success)
            {
                info.DisplayMessage("Sender Incorrect", "Please enter a valid email address in the sender box.");
            }
            else if (message == "")
            {
                info.DisplayMessage("No Message", "Please enter a message");
            }
            else
            {
                string[] messageArray = message.Split(' ');
                string[] removedURL   = EmailModel.RemoveURL(messageArray);
                txtMessage.Text = string.Join(" ", removedURL);
                EmailModel email = new EmailModel(header, txtMessage.Text, emailSender, subject);

                if (subject.ToUpper().StartsWith("SIR"))
                {
                    if (SIRMatch.Success)
                    {
                        if (email.HandleSIR())
                        {
                            info.DisplayMessage("Success", "Significant Incident Report submitted");
                        }
                        else
                        {
                            info.DisplayMessage("Error", "It seems you tried to submit a significant incident report but it is not laid out correctly. " +
                                                "You must have a sort code in the form of 99-99-99 on the first line, and the incident on the second");
                        }
                    }
                    else
                    {
                        info.DisplayMessage("Oops!", "It looks like you tried to submit an SIR but the subject isn't formatted correctly. It must be SIR dd/mm/yy.");
                    }
                }
                else
                {
                    email.OutputJson();
                    info.DisplayMessage("Success", "Email submitted successfuly.");
                }
            }
        }