diff --git a/goofy-server/src/main/java/de/itvsh/goofy/vorgang/VorgangHeader.java b/goofy-server/src/main/java/de/itvsh/goofy/vorgang/VorgangHeader.java
index b6acc1a7742e588293db442905d448fa910778f8..3d7bb25cedebb72e3c97b438326f6a7355b2e2ef 100644
--- a/goofy-server/src/main/java/de/itvsh/goofy/vorgang/VorgangHeader.java
+++ b/goofy-server/src/main/java/de/itvsh/goofy/vorgang/VorgangHeader.java
@@ -41,4 +41,7 @@ class VorgangHeader implements Vorgang {
 	@With
 	@JsonProperty(access = Access.READ_ONLY)
 	private LocalDate nextFrist;
+
+	@Builder.Default
+	private boolean hasPostfachNachricht = true;
 }