diff --git a/EnvelopeGenerator.Web/Controllers/ReadOnlyController.cs b/EnvelopeGenerator.Web/Controllers/ReadOnlyController.cs
index cda16e8a..8a045510 100644
--- a/EnvelopeGenerator.Web/Controllers/ReadOnlyController.cs
+++ b/EnvelopeGenerator.Web/Controllers/ReadOnlyController.cs
@@ -46,7 +46,15 @@ namespace EnvelopeGenerator.Web.Controllers
                 return Unauthorized();
             }
 
+            var envelopeId = this.GetAuthEnvelopeId();
+            if (envelopeId is null)
+            {
+                _logger.LogError("Envelope Id clam is not found in envelope-receiver-read-only creation process. Create DTO is:\n {dto}", JsonConvert.SerializeObject(createDto));
+                return Unauthorized();
+            }
+
             createDto.AddedWho = authReceiverMail;
+            createDto.EnvelopeId = envelopeId;
 
             // create entity
             var creation_res = await _erroService.CreateAsync(createDto: createDto);
diff --git a/EnvelopeGenerator.Web/appsettings.json b/EnvelopeGenerator.Web/appsettings.json
index 484f1d6c..60ce7a85 100644
--- a/EnvelopeGenerator.Web/appsettings.json
+++ b/EnvelopeGenerator.Web/appsettings.json
@@ -136,7 +136,7 @@
     "ShowPageClass": "dd-show-logo",
     "LockedPageClass": "dd-locked-logo"
   },
-  "MailOptions": {
+  "MailConfig": {
     "Placeholders": {
       "[NAME_PORTAL]": "signFlow",
       "[SIGNATURE_TYPE]": "signieren",