diff --git a/NEWS b/NEWS
index 766807505..47047f3e3 100644
--- a/NEWS
+++ b/NEWS
@@ -15,6 +15,7 @@ Bug fixes
  - [web] respect super user privileges to create in any calendar and addressbook (#3533)
  - [web] properly null-terminate IS8601-formatted dates (#3539)
  - [web] display CC/BCC fields in message editor when initialized with values
+ - [web] fixed message initialization in popup window (#3583)
 
 3.0.2 (2016-03-04)
 ------------------
diff --git a/UI/WebServerResources/js/Mailer/Mailer.popup.js b/UI/WebServerResources/js/Mailer/Mailer.popup.js
index 5b5d07a30..399c16239 100644
--- a/UI/WebServerResources/js/Mailer/Mailer.popup.js
+++ b/UI/WebServerResources/js/Mailer/Mailer.popup.js
@@ -179,7 +179,7 @@
       // Message is available from the parent window
       message = new Message(stateMailbox.$account.id,
                             stateMailbox,
-                            window.opener.$messageController.message.$omit());
+                            window.opener.$messageController.message.$omit({privateAttributes: true}));
       return $q.when(message);
     }
     else {
diff --git a/UI/WebServerResources/js/Mailer/Message.service.js b/UI/WebServerResources/js/Mailer/Message.service.js
index 139b6fde9..889df3ef7 100644
--- a/UI/WebServerResources/js/Mailer/Message.service.js
+++ b/UI/WebServerResources/js/Mailer/Message.service.js
@@ -648,10 +648,11 @@
    * @desc Return a sanitized object used to send to the server.
    * @return an object literal copy of the Message instance
    */
-  Message.prototype.$omit = function() {
-    var message = {};
+  Message.prototype.$omit = function(options) {
+    var message = {},
+        privateAttributes = options && options.privateAttributes;
     angular.forEach(this, function(value, key) {
-      if (key != 'constructor' && key[0] != '$') {
+      if (key != 'constructor' && key[0] != '$' || privateAttributes) {
         message[key] = value;
       }
     });