diff --git a/src/main/java/org/esupportail/esupsignature/service/mail/MailService.java b/src/main/java/org/esupportail/esupsignature/service/mail/MailService.java
index b1185753b..27dce197a 100644
--- a/src/main/java/org/esupportail/esupsignature/service/mail/MailService.java
+++ b/src/main/java/org/esupportail/esupsignature/service/mail/MailService.java
@@ -105,7 +105,7 @@ public void sendSignRequestEmailAlert(SignBook signBook, User recipientUser, Dat
         Map<String, UserShare> toShareEmails = new HashMap<>();
         for (UserShare userShare : userShareService.getUserSharesByUser(recipientUser.getEppn())) {
             if (userShare.getShareTypes().contains(ShareType.sign) &&
-                ((data != null && data.getForm() != null && data.getForm().getId().equals(userShare.getForm().getId()))
+                ((data != null && data.getForm() != null && userShare.getForm() != null && data.getForm().getId().equals(userShare.getForm().getId()))
                 || (workflow != null && userShare.getWorkflow() != null &&  workflow.getId().equals(userShare.getWorkflow().getId()))
                 || (userShare.getAllSignRequests() && BooleanUtils.isTrue(userShare.getForceTransmitEmails())))) {
                 for (User toUser : userShare.getToUsers()) {