diff --git a/dmp-backend/core/src/main/java/eu/eudat/model/persist/notification/NotificationPersist.java b/dmp-backend/core/src/main/java/eu/eudat/model/persist/notification/NotificationPersist.java
index 9b8461504..96a8a061f 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/model/persist/notification/NotificationPersist.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/model/persist/notification/NotificationPersist.java
@@ -31,6 +31,7 @@ public class NotificationPersist {
 
     private NotificationContactType contactTypeHint;
 
+    public static final String _contactHint = "contactHint";
     private String contactHint;
 
     private String data;
@@ -205,8 +206,13 @@ public class NotificationPersist {
                             .must(() -> !this.isValidHash(item.getHash()))
                             .failOn(NotificationPersist._hash).failWith(messageSource.getMessage("Validation_OverPosting", new Object[]{}, LocaleContextHolder.getLocale())),
                     this.spec()
+                            .iff(() -> this.isEmpty(item.getContactHint()))
                             .must(() -> this.isValidGuid(item.getUserId()))
-                            .failOn(NotificationPersist._userId).failWith(messageSource.getMessage("Validation_Required", new Object[]{NotificationPersist._userId}, LocaleContextHolder.getLocale()))
+                            .failOn(NotificationPersist._userId).failWith(messageSource.getMessage("Validation_Required", new Object[]{NotificationPersist._userId}, LocaleContextHolder.getLocale())),
+                    this.spec()
+                            .iff(() -> !this.isValidGuid(item.getUserId()))
+                            .must(() -> !this.isEmpty(item.getContactHint()))
+                            .failOn(NotificationPersist._userId).failWith(messageSource.getMessage("Validation_Required", new Object[]{NotificationPersist._contactHint}, LocaleContextHolder.getLocale()))
             );
         }
     }
diff --git a/dmp-backend/core/src/main/java/eu/eudat/service/contactsupport/ContactSupportServiceImpl.java b/dmp-backend/core/src/main/java/eu/eudat/service/contactsupport/ContactSupportServiceImpl.java
index 062799bd0..16550be3d 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/service/contactsupport/ContactSupportServiceImpl.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/service/contactsupport/ContactSupportServiceImpl.java
@@ -92,7 +92,7 @@ public class ContactSupportServiceImpl implements ContactSupportService {
     @Override
     public void sendPublicContactEmail(PublicContactSupportPersist model) throws InvalidApplicationException {
         logger.debug(new MapLogEntry("public send contact email").And("model", model));
-        this.authorizationService.authorizeForce(Permission.SendContactSupport);
+        this.authorizationService.authorizeForce(Permission.PublicSendContactSupport);
 
         NotificationIntegrationEvent event = new NotificationIntegrationEvent();
 
diff --git a/dmp-backend/core/src/main/java/eu/eudat/service/notification/NotificationServiceImpl.java b/dmp-backend/core/src/main/java/eu/eudat/service/notification/NotificationServiceImpl.java
index c6a6e4e4f..48699b10a 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/service/notification/NotificationServiceImpl.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/service/notification/NotificationServiceImpl.java
@@ -65,7 +65,7 @@ public class NotificationServiceImpl implements NotificationService {
     public void persist(NotificationPersist model, FieldSet fields) throws MyForbiddenException, MyValidationException, MyApplicationException, MyNotFoundException, InvalidApplicationException {
         logger.debug(new MapLogEntry("persisting notification").And("model", model).And("fields", fields));
 
-        this.authorizationService.authorizeForce(Permission.AuthenticatedRole);
+        this.authorizationService.authorizeForce(Permission.PublicRole);
 
         Boolean isUpdate = this.conventionService.isValidGuid(model.getId());
 
diff --git a/dmp-backend/web/src/main/java/eu/eudat/controllers/v2/ContactSupportController.java b/dmp-backend/web/src/main/java/eu/eudat/controllers/v2/ContactSupportController.java
index 58dc991d4..eb0070a03 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/controllers/v2/ContactSupportController.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/controllers/v2/ContactSupportController.java
@@ -23,6 +23,7 @@ import gr.cite.tools.exception.MyNotFoundException;
 import gr.cite.tools.logging.LoggerService;
 import gr.cite.tools.logging.MapLogEntry;
 import org.slf4j.LoggerFactory;
+import org.springframework.http.MediaType;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.*;
 
@@ -67,10 +68,10 @@ public class ContactSupportController {
 
     
 
-    @PostMapping("public/send")
+    @PostMapping(path = "public/send", consumes = {MediaType.APPLICATION_FORM_URLENCODED_VALUE})
     @Transactional
     @ValidationFilterAnnotation(validator = PublicContactSupportPersist.PublicContactSupportPersistValidator.ValidatorName, argumentName ="model")
-    public void sendPublicContactEmail(@RequestBody PublicContactSupportPersist model) throws InvalidApplicationException {
+    public void sendPublicContactEmail(@ModelAttribute PublicContactSupportPersist model) throws InvalidApplicationException {
         logger.debug(new MapLogEntry("send public support email").And("model", model));
 
         this.contactSupportService.sendPublicContactEmail(model);
@@ -81,4 +82,17 @@ public class ContactSupportController {
         //this.auditService.trackIdentity(AuditableAction.IdentityTracking_Action);
     }
 
+    @PostMapping("public/send")
+    @Transactional
+    @ValidationFilterAnnotation(validator = PublicContactSupportPersist.PublicContactSupportPersistValidator.ValidatorName, argumentName ="model")
+    public void sendPublicContactEmailJson(@RequestBody PublicContactSupportPersist model) throws InvalidApplicationException {
+        logger.debug(new MapLogEntry("send public support email").And("model", model));
+
+        this.contactSupportService.sendPublicContactEmail(model);
+
+        this.auditService.track(AuditableAction.ContactSupport_PublicSent, Map.ofEntries(
+                new AbstractMap.SimpleEntry<String, Object>("model", model)
+        ));
+        //this.auditService.trackIdentity(AuditableAction.IdentityTracking_Action);
+    }
 }
diff --git a/dmp-frontend/src/assets/splash/contact.html b/dmp-frontend/src/assets/splash/contact.html
index 7a0c03314..1af8280c0 100644
--- a/dmp-frontend/src/assets/splash/contact.html
+++ b/dmp-frontend/src/assets/splash/contact.html
@@ -68,7 +68,7 @@
 			</div>
 
 			<iframe name="hiddenFrame" class="hide"></iframe>
-			<form class="form" method="POST" action="/api/contactEmail/public" target="hiddenFrame" onsubmit="emailSend()">
+			<form class="form" method="POST" action="/api/contact-support/public/send" target="hiddenFrame" onsubmit="emailSend()">
 				<div class="main-contact">
 					<div class="col page-subtitle">
 						<div>Contact us to learn more</div>