diff --git a/ems-core/src/main/java/it/integry/ems/service/MailService.java b/ems-core/src/main/java/it/integry/ems/service/MailService.java
index cbe5e152bf..ab0537b85c 100644
--- a/ems-core/src/main/java/it/integry/ems/service/MailService.java
+++ b/ems-core/src/main/java/it/integry/ems/service/MailService.java
@@ -203,7 +203,24 @@ public class MailService {
                                            replyToName, List<IFileSharerAttachment> emailFileAttachmentList, boolean requestDeliveryNotification,
                                    String deliveryNotificationTo) throws
             Exception {
-        return sendMailPrimary(multiDBTransactionManager, from, fromName, Arrays.asList(to.split(";")), Arrays.asList(cc.split(";")), Arrays.asList(ccn.split(";")),
+
+        List<String> listTo = null;
+        List<String> listCc = null;
+        List<String> listCcn = null;
+
+        if (!UtilityString.isNullOrEmpty(to)){
+            listTo = Arrays.asList(to.split(";"));
+        }
+
+        if (!UtilityString.isNullOrEmpty(cc)){
+            listCc = Arrays.asList(cc.split(";"));
+        }
+
+        if (!UtilityString.isNullOrEmpty(cc)){
+            listCcn = Arrays.asList(ccn.split(";"));
+        }
+
+        return sendMailPrimary(multiDBTransactionManager, from, fromName, listTo, listCc, listCcn,
                 subject, msgText, isHtml, isDebug, replyTo, replyToName, emailFileAttachmentList, requestDeliveryNotification, deliveryNotificationTo);
     }