Forms default SendEmail workflowtype

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Umbraco.Forms.Core.Enums;
using System.Text.RegularExpressions;
using Umbraco.Forms.Data.Storage;
using System.Xml;
using System.Xml.XPath;
using System.Web;
using System.Net.Mail;


namespace Umbraco.Forms.Core.Providers.WorkflowTypes
{    
    public class SendEmail : WorkflowType
    {
        [Attributes.Setting("Email", description = "Enter the receiver email", view = "TextField")]
        public string Email { get; set; }

        [Attributes.Setting("SenderEmail", description = "Enter the sender email (if blank it will use the settings from /config/umbracosettings.config)", view = "TextField")]
        public string SenderEmail { get; set; }

        [Attributes.Setting("Subject", description = "Enter the subject", view = "TextField")]
        public string Subject { get; set; }

        [Attributes.Setting("Message", description = "Enter the intro message", view = "TextArea" )]
        public string Message { get; set; }

        [Attributes.Setting("Attachment", description = "Attach file uploads to email", view = "Checkbox")]
        public string Attachment { get; set; }
        
        public SendEmail()
        {
            this.Id = new Guid("E96BADD7-05BE-4978-B8D9-B3D733DE70A5");
            this.Name = "Send email";
            this.Description = "Send the result of the form to an email address";
        }

        public override List<Exception> ValidateSettings()
        {
            List<Exception> l = new List<Exception>();
            if (string.IsNullOrEmpty(Email))
                l.Add(new Exception("'Email' setting has not been set"));
            
            if (string.IsNullOrEmpty(Message))
                l.Add(new Exception("'Message' setting has not been set'"));


            return l;
        }

        public override WorkflowExecutionStatus Execute(Record record, RecordEventArgs e)
        {
            

            System.Net.Mail.MailMessage m = new System.Net.Mail.MailMessage();
            m.From = new System.Net.Mail.MailAddress(string.IsNullOrEmpty(SenderEmail) ? umbraco.UmbracoSettings.NotificationEmailSender : SenderEmail);
            m.Subject = Subject;
            m.IsBodyHtml = true;

            if (Email.Contains(';'))
            {
                string[] emails = Email.Split(';');
                foreach (string email in emails)
                {
                    m.To.Add(email.Trim());
                }
            }else{
                m.To.Add(Email);      
            }

            //RecordsViewer viewer = new RecordsViewer();
            XmlNode xml = record.ToXml(new System.Xml.XmlDocument()); //viewer.GetSingleXmlRecord(record, new System.Xml.XmlDocument());



            XPathNavigator navigator = xml.CreateNavigator();

            XPathExpression selectExpression = navigator.Compile("//fields/child::*");
            selectExpression.AddSort("@pageindex", XmlSortOrder.Ascending, XmlCaseOrder.None, "", XmlDataType.Number);
            selectExpression.AddSort("@fieldsetindex", XmlSortOrder.Ascending, XmlCaseOrder.None, "", XmlDataType.Number);
            selectExpression.AddSort("@sortorder", XmlSortOrder.Ascending, XmlCaseOrder.None, "", XmlDataType.Number);

            XPathNodeIterator nodeIterator = navigator.Select(selectExpression);

            string list = "<dl>";
            while (nodeIterator.MoveNext())
            {
                    list += "<dt><strong>" +
                            Umbraco.Forms.Data.DictionaryHelper.GetText(
                                nodeIterator.Current.SelectSingleNode("caption").Value) + ": </strong><dt><dd>";

                    XPathNodeIterator values = nodeIterator.Current.Select(".//value");

                    while (values.MoveNext())
                    {
                        var val = values.Current.Value.Trim();
                        list +=
                            Umbraco.Forms.Data.DictionaryHelper.GetText(val)
                                .Replace("\n", "<br/>") + "<br/>";

                        if (this.Attachment == true.ToString() &&
                            val.Contains("/forms/upload"))
                        {
                            // add attachment
                            string filelocation = HttpContext.Current.Server.MapPath(val);
                            m.Attachments.Add(new Attachment(filelocation));
                        }
                    }
                    list += "</dd>";

            }

            list += "</dl>";

            m.Body = "<p>" + Message.Replace("\n","<br/>") + "</p>" + list;

            System.Net.Mail.SmtpClient s = new System.Net.Mail.SmtpClient();

            s.Send(m);
                        
            return WorkflowExecutionStatus.Completed;
        }
    }
}