add to string to address

nachrichten-manager-postfach-interface/src/main/java/de/ozgcloud/nachrichten/postfach/PostfachAddress.java

@@ -2,9 +2,11 @@ package de.ozgcloud.nachrichten.postfach;
 
 import lombok.Builder;
 import lombok.Getter;
+import lombok.ToString;
 
 @Getter
 @Builder
+@ToString
 public class PostfachAddress {
 
 	public static final String VERSION_FIELD = "version";

nachrichten-manager-server/src/main/java/de/ozgcloud/nachrichten/postfach/StringBasedIdentifier.java

@@ -13,4 +13,9 @@ public class StringBasedIdentifier implements PostfachAddressIdentifier {
 	public boolean isStringBasedIdentifier() {
 		return true;
 	}
+
+	@Override
+	public String toString() {
+		return postfachId;
+	}
 }