Abstracting MailMessage

src/Umbraco.Web.BackOffice/Controllers/UsersController.cs

@@ -3,7 +3,6 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Net;
-using System.Net.Mail;
 using System.Runtime.Serialization;
 using System.Security.Cryptography;
 using System.Threading.Tasks;
@@ -543,12 +542,9 @@ namespace Umbraco.Web.BackOffice.Controllers
                 UmbracoUserExtensions.GetUserCulture(to.Language, _localizedTextService, _globalSettings),
                 new[] { userDisplay.Name, from, message, inviteUri.ToString(), fromEmail });
 
-            var mailMessage = new MailMessage()
+            var mailMessage = new EmailMessage(fromEmail, to.Email, emailSubject, emailBody)
             {
-                Subject = emailSubject,
-                Body = emailBody,
-                IsBodyHtml = true,
-                To = { to.Email}
+                IsBodyHtml = true
             };
 
             await _emailSender.SendAsync(mailMessage);