diff --git a/nachrichten-manager-server/pom.xml b/nachrichten-manager-server/pom.xml
index 76af39955f8d3d96e461467aacc12c6dfc111422..575746c78ca0badf6d04014ac986d0a1c7268e0c 100644
--- a/nachrichten-manager-server/pom.xml
+++ b/nachrichten-manager-server/pom.xml
@@ -48,7 +48,7 @@
 		<bayernid-proxy-interface.version>0.7.0</bayernid-proxy-interface.version>
 		<vorgang-manager.version>2.17.0</vorgang-manager.version>
 		<muk-postfach.version>0.1.0</muk-postfach.version>
-		<osiv2-postfach.version>0.1.1-SNAPSHOT</osiv2-postfach.version>
+		<osiv2-postfach.version>0.1.3-SNAPSHOT</osiv2-postfach.version>
 		<api-lib.version>0.16.0</api-lib.version>
 		<ozgcloud-common.version>4.7.0</ozgcloud-common.version>
 	</properties>
diff --git a/nachrichten-manager-server/src/test/java/de/ozgcloud/nachrichten/postfach/Osi2PostfachServiceITCase.java b/nachrichten-manager-server/src/test/java/de/ozgcloud/nachrichten/postfach/Osi2PostfachServiceITCase.java
new file mode 100644
index 0000000000000000000000000000000000000000..55a583adc8bfcf43df8423b7730819f8f1535ca5
--- /dev/null
+++ b/nachrichten-manager-server/src/test/java/de/ozgcloud/nachrichten/postfach/Osi2PostfachServiceITCase.java
@@ -0,0 +1,85 @@
+package de.ozgcloud.nachrichten.postfach;
+
+import static org.assertj.core.api.Assertions.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.context.event.EventListener;
+import org.springframework.stereotype.Component;
+import org.springframework.test.context.TestPropertySource;
+
+import de.ozgcloud.common.test.ITCase;
+import de.ozgcloud.nachrichten.attributes.ClientAttributeService;
+import de.ozgcloud.nachrichten.email.EmailGrpcService;
+import de.ozgcloud.nachrichten.postfach.osiv2.transfer.PostfachApiFacadeService;
+import de.ozgcloud.vorgang.callcontext.WithMockCustomUser;
+
+@ITCase
+@TestPropertySource(properties = {
+		"ozgcloud.osiv2-postfach.enabled=true"
+})
+class Osi2PostfachServiceITCase {
+
+	@Autowired
+	private PostfachService postfachService;
+
+	@MockBean
+	private ApplicationEventPublisher publisher;
+
+	@MockBean
+	private ClientAttributeService clientAttributeRemoteService;
+
+	@MockBean
+	private PostfachApiFacadeService postfachApiFacadeService;
+
+	@MockBean
+	private EmailGrpcService emailGrpcService;
+
+	@Autowired
+	private OsiPostfachServiceITCase.SentEventTestListener sentEventTestListener;
+
+	@BeforeEach
+	void mock() {
+		sentEventTestListener.reset();
+	}
+
+	@DisplayName("should call osi2 postfach send")
+	@Test
+	@WithMockCustomUser
+	void shouldCallOsi2PostfachSend() {
+		var osiNachricht = PostfachNachrichtTestFactory.createBuilder()
+				.postfachAddress(PostfachAddressTestFactory.createBuilder()
+						.serviceKontoType("OSI")
+						.build()
+				)
+				.build();
+		var commandId = "aaaaa";
+
+		postfachService.sendMail(commandId, "userId", osiNachricht);
+
+		assertThat(sentEventTestListener.events)
+				.extracting(PostfachMailSentEvent::getSource)
+				.containsExactly(commandId);
+	}
+
+	@Component
+	static class SentEventTestListener {
+		final List<PostfachMailSentEvent> events = new ArrayList<>();
+
+		@EventListener
+		void onEvent(PostfachMailSentEvent event) {
+			events.add(event);
+		}
+
+		void reset() {
+			events.clear();
+		}
+	}
+}