diff --git a/FlexiMail.Tests.Unit/Services/FlexiExchangeServiceTests.Validations.cs b/FlexiMail.Tests.Unit/Services/FlexiExchangeServiceTests.Validations.cs
index dd263bc..001a37e 100644
--- a/FlexiMail.Tests.Unit/Services/FlexiExchangeServiceTests.Validations.cs
+++ b/FlexiMail.Tests.Unit/Services/FlexiExchangeServiceTests.Validations.cs
@@ -74,7 +74,15 @@ public async void ShouldThrowValidationExceptionIfNoReceiverWasAdded()
 
             invalidFlexiMessageException.AddData(
                 key: nameof(FlexiMessage.To),
-                values: "Value is not set"); 
+                values: "Value is not set");
+
+            invalidFlexiMessageException.AddData(
+                key: nameof(FlexiMessage.Cc),
+                values: "Value is not set");
+
+            invalidFlexiMessageException.AddData(
+                key: nameof(FlexiMessage.Bcc),
+                values: "Value is not set");
 
             var expectedFlexiMessageValidationException =
                 new FlexiMessageValidationException(