initial commit.

not working

MailAddressVisualizerSource/MailAddressObjectSource .cs

@@ -0,0 +1,20 @@
+using Microsoft.VisualStudio.DebuggerVisualizers;
+using System.Net.Mail;
+
+namespace MailAddressVisualizerSource;
+
+public class MailAddressObjectSource : VisualizerObjectSource
+{
+    public override void GetData(object target, Stream outgoingData)
+    {
+        if (target is MailAddress mail)
+        {
+            var result = new MailAddressModel
+            {
+                DisplayName = mail.DisplayName,
+                Email = mail.Address,
+            };
+            SerializeAsJson(outgoingData, result);
+        }
+    }
+}