diff --git a/js/origrcv.js b/js/origrcv.js
index 06f791e..4324c50 100644
--- a/js/origrcv.js
+++ b/js/origrcv.js
@@ -50,7 +50,7 @@ Zarafa.plugins.origrcv.OrigRcvPlugin = Ext.extend(Zarafa.core.Plugin, {
             var headers = record.get('transport_message_headers');
             var toMatches = toRegex.exec(headers);
 
-            if (toMatches.length == 2 && toMatches[1] != "") {
+            if (toMatches != null && toMatches.length == 2 && toMatches[1] != "") {
                 var addrListRegex = /\b[A-Z0-9._%+-]+@(?:[A-Z0-9-]+\.)+[A-Z]{2,6}\b/ig; // split email address list
 
                 var emailAddresses = [];