diff --git a/nachrichten-manager-server/pom.xml b/nachrichten-manager-server/pom.xml
index 6d28a125b7120079209d78db7b02f06e4cebb5da..15bdc72d1c54b3f78fe1f1d347ba4c62782e0c2d 100644
--- a/nachrichten-manager-server/pom.xml
+++ b/nachrichten-manager-server/pom.xml
@@ -25,61 +25,67 @@
 
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
 
 	<parent>
-        <groupId>de.ozgcloud.nachrichten</groupId>
-        <artifactId>nachrichten-manager</artifactId>
-        <version>2.9.0-SNAPSHOT</version>
-        <relativePath>../</relativePath>
+		<groupId>de.ozgcloud.nachrichten</groupId>
+		<artifactId>nachrichten-manager</artifactId>
+		<version>2.9.0-SNAPSHOT</version>
+		<relativePath>../</relativePath>
 	</parent>
 
-    <artifactId>nachrichten-manager-server</artifactId>
-    <name>OZG-Cloud Nachrichten Manager Server</name>
+	<artifactId>nachrichten-manager-server</artifactId>
+	<name>OZG-Cloud Nachrichten Manager Server</name>
 
-    <properties>
-        <!-- TODO version management -->
-        <shedlock.version>4.25.0</shedlock.version>
-        <logcaptor.version>2.7.10</logcaptor.version>
-        <jaxb-maven-plugin.version>3.0.1</jaxb-maven-plugin.version>
-        <ozg-info-manager-interface.version>0.1.0-SNAPSHOT</ozg-info-manager-interface.version>
-        <bayernid-proxy-interface.version>0.1.0</bayernid-proxy-interface.version>
-        <vorgang-manager.version>2.9.0-SNAPSHOT</vorgang-manager.version>
+	<properties>
+		<!-- TODO version management -->
+		<shedlock.version>4.25.0</shedlock.version>
+		<logcaptor.version>2.7.10</logcaptor.version>
+		<jaxb-maven-plugin.version>3.0.1</jaxb-maven-plugin.version>
+		<ozg-info-manager-interface.version>0.1.0-SNAPSHOT</ozg-info-manager-interface.version>
+		<bayernid-proxy-interface.version>0.1.0</bayernid-proxy-interface.version>
+		<vorgang-manager.version>2.8.0</vorgang-manager.version>
+		<muk-postfach.version>0.1.0-SNAPSHOT</muk-postfach.version>
 		<ozgcloud-starter.version>0.10.0-SNAPSHOT</ozgcloud-starter.version>
-    </properties>
+	</properties>
 
-    <dependencies>
-       <dependency>
-            <groupId>de.ozgcloud.vorgang</groupId>
-            <artifactId>vorgang-manager-base</artifactId>
-            <version>${vorgang-manager.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>de.ozgcloud.nachrichten</groupId>
-            <artifactId>nachrichten-manager-interface</artifactId>
-            <version>${project.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>de.ozgcloud.nachrichten</groupId>
-            <artifactId>nachrichten-manager-postfach-interface</artifactId>
-            <version>${project.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>de.ozgcloud.command</groupId>
-            <artifactId>command-manager</artifactId>
-            <version>${vorgang-manager.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>de.ozgcloud.vorgang</groupId>
-            <artifactId>vorgang-manager-utils</artifactId>
-            <version>${vorgang-manager.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>de.ozgcloud.nachrichten</groupId>
-            <artifactId>bayernid-proxy-interface</artifactId>
-            <version>${bayernid-proxy-interface.version}</version>
-        </dependency>
+	<dependencies>
+		<dependency>
+			<groupId>de.ozgcloud.vorgang</groupId>
+			<artifactId>vorgang-manager-base</artifactId>
+			<version>${vorgang-manager.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>de.ozgcloud.nachrichten</groupId>
+			<artifactId>nachrichten-manager-interface</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>de.ozgcloud.nachrichten</groupId>
+			<artifactId>nachrichten-manager-postfach-interface</artifactId>
+			<version>${project.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>de.ozgcloud.command</groupId>
+			<artifactId>command-manager</artifactId>
+			<version>${vorgang-manager.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>de.ozgcloud.vorgang</groupId>
+			<artifactId>vorgang-manager-utils</artifactId>
+			<version>${vorgang-manager.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>de.ozgcloud.nachrichten</groupId>
+			<artifactId>bayernid-proxy-interface</artifactId>
+			<version>${bayernid-proxy-interface.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>de.ozgcloud.muk</groupId>
+			<artifactId>muk-postfach</artifactId>
+			<version>${muk-postfach.version}</version>
+		</dependency>
         
         <dependency>
 			<groupId>de.ozgcloud.api-lib</groupId>
@@ -87,238 +93,238 @@
 			<version>${ozgcloud-starter.version}</version>
 		</dependency>
 
-        <dependency>
-            <groupId>de.ozgcloud.info</groupId>
-            <artifactId>info-manager-interface</artifactId>
-            <version>${ozg-info-manager-interface.version}</version>
-        </dependency>
+		<dependency>
+			<groupId>de.ozgcloud.info</groupId>
+			<artifactId>info-manager-interface</artifactId>
+			<version>${ozg-info-manager-interface.version}</version>
+		</dependency>
 
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-mail</artifactId>
-        </dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-mail</artifactId>
+		</dependency>
 
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-json</artifactId>
-            <scope>compile</scope>
-        </dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-json</artifactId>
+			<scope>compile</scope>
+		</dependency>
 
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-web</artifactId>
-        </dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-web</artifactId>
+		</dependency>
 
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-validation</artifactId>
-        </dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-validation</artifactId>
+		</dependency>
 
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web-services</artifactId>
-        </dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web-services</artifactId>
+		</dependency>
 
-        <dependency>
-            <groupId>org.glassfish.jaxb</groupId>
-            <artifactId>jaxb-runtime</artifactId>
-        </dependency>
+		<dependency>
+			<groupId>org.glassfish.jaxb</groupId>
+			<artifactId>jaxb-runtime</artifactId>
+		</dependency>
 
-        <dependency>
-            <groupId>net.javacrumbs.shedlock</groupId>
-            <artifactId>shedlock-spring</artifactId>
-            <version>${shedlock.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>net.javacrumbs.shedlock</groupId>
-            <artifactId>shedlock-provider-mongo</artifactId>
-            <version>${shedlock.version}</version>
-        </dependency>
+		<dependency>
+			<groupId>net.javacrumbs.shedlock</groupId>
+			<artifactId>shedlock-spring</artifactId>
+			<version>${shedlock.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>net.javacrumbs.shedlock</groupId>
+			<artifactId>shedlock-provider-mongo</artifactId>
+			<version>${shedlock.version}</version>
+		</dependency>
 
-        <dependency>
-            <groupId>org.mapstruct</groupId>
-            <artifactId>mapstruct</artifactId>
-        </dependency>
+		<dependency>
+			<groupId>org.mapstruct</groupId>
+			<artifactId>mapstruct</artifactId>
+		</dependency>
 
-        <dependency>
-            <groupId>org.springframework.security</groupId>
-            <artifactId>spring-security-saml2-service-provider</artifactId>
-        </dependency>
+		<dependency>
+			<groupId>org.springframework.security</groupId>
+			<artifactId>spring-security-saml2-service-provider</artifactId>
+		</dependency>
 
 
-        <dependency>
-            <groupId>net.devh</groupId>
-            <artifactId>grpc-server-spring-boot-starter</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>net.devh</groupId>
-            <artifactId>grpc-client-spring-boot-starter</artifactId>
-        </dependency>
+		<dependency>
+			<groupId>net.devh</groupId>
+			<artifactId>grpc-server-spring-boot-starter</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>net.devh</groupId>
+			<artifactId>grpc-client-spring-boot-starter</artifactId>
+		</dependency>
 
-        <!-- commons -->
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-lang3</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.httpcomponents.client5</groupId>
-            <artifactId>httpclient5</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>commons-beanutils</groupId>
-            <artifactId>commons-beanutils</artifactId>
-        </dependency>
+		<!-- commons -->
+		<dependency>
+			<groupId>org.apache.commons</groupId>
+			<artifactId>commons-lang3</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.httpcomponents.client5</groupId>
+			<artifactId>httpclient5</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>commons-beanutils</groupId>
+			<artifactId>commons-beanutils</artifactId>
+		</dependency>
 
-        <!-- DEV -->
-        <dependency>
-            <groupId>org.projectlombok</groupId>
-            <artifactId>lombok</artifactId>
-            <optional>true</optional>
-            <scope>provided</scope>
-        </dependency>
+		<!-- DEV -->
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<optional>true</optional>
+			<scope>provided</scope>
+		</dependency>
 
-        <!-- TEST -->
-        <dependency>
-            <groupId>de.ozgcloud.nachrichten</groupId>
-            <artifactId>nachrichten-manager-interface</artifactId>
-            <version>${project.version}</version>
-            <type>test-jar</type>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-test</artifactId>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-configuration-processor</artifactId>
-            <optional>true</optional>
-        </dependency>
-        <dependency>
-            <groupId>io.github.hakky54</groupId>
-            <artifactId>logcaptor</artifactId>
-            <version>${logcaptor.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>de.ozgcloud.vorgang</groupId>
-            <artifactId>vorgang-manager-base</artifactId>
-            <version>${vorgang-manager.version}</version>
-            <type>test-jar</type>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
+		<!-- TEST -->
+		<dependency>
+			<groupId>de.ozgcloud.nachrichten</groupId>
+			<artifactId>nachrichten-manager-interface</artifactId>
+			<version>${project.version}</version>
+			<type>test-jar</type>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-configuration-processor</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>io.github.hakky54</groupId>
+			<artifactId>logcaptor</artifactId>
+			<version>${logcaptor.version}</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>de.ozgcloud.vorgang</groupId>
+			<artifactId>vorgang-manager-base</artifactId>
+			<version>${vorgang-manager.version}</version>
+			<type>test-jar</type>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
 
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.springframework.boot</groupId>
-                <artifactId>spring-boot-maven-plugin</artifactId>
-                <configuration>
-                    <skip>true</skip>
-                </configuration>
-            </plugin>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+				<configuration>
+					<skip>true</skip>
+				</configuration>
+			</plugin>
 
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-jar-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <goals>
-                            <goal>test-jar</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-jar-plugin</artifactId>
+				<executions>
+					<execution>
+						<goals>
+							<goal>test-jar</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
 
-            <plugin>
-                <groupId>org.jvnet.jaxb</groupId>
-                <artifactId>jaxb-maven-plugin</artifactId>
-                <version>${jaxb-maven-plugin.version}</version>
-                <configuration>
-                    <schemas>
-                        <schema>
-                            <fileset>
-                                <directory>${basedir}/src/main/resources/bayernid</directory>
-                                <includes>
-                                    <include>*.wsdl</include>
-                                </includes>
-                            </fileset>
-                        </schema>
-                        <schema>
-                            <fileset>
-                                <directory>${basedir}/src/main/resources/bayernid</directory>
-                                <includes>
-                                    <include>*.xsd</include>
-                                </includes>
-                            </fileset>
-                        </schema>
-                    </schemas>
-                    <episode>false</episode>
-                </configuration>
-                <executions>
-                    <execution>
-                        <goals>
-                            <goal>generate</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
+			<plugin>
+				<groupId>org.jvnet.jaxb</groupId>
+				<artifactId>jaxb-maven-plugin</artifactId>
+				<version>${jaxb-maven-plugin.version}</version>
+				<configuration>
+					<schemas>
+						<schema>
+							<fileset>
+								<directory>${basedir}/src/main/resources/bayernid</directory>
+								<includes>
+									<include>*.wsdl</include>
+								</includes>
+							</fileset>
+						</schema>
+						<schema>
+							<fileset>
+								<directory>${basedir}/src/main/resources/bayernid</directory>
+								<includes>
+									<include>*.xsd</include>
+								</includes>
+							</fileset>
+						</schema>
+					</schemas>
+					<episode>false</episode>
+				</configuration>
+				<executions>
+					<execution>
+						<goals>
+							<goal>generate</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
 
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-            </plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+			</plugin>
 
-            <plugin>
-                <groupId>org.sonarsource.scanner.maven</groupId>
-                <artifactId>sonar-maven-plugin</artifactId>
-            </plugin>
-            <plugin>
-                <groupId>org.jacoco</groupId>
-                <artifactId>jacoco-maven-plugin</artifactId>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-failsafe-plugin</artifactId>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-            </plugin>
+			<plugin>
+				<groupId>org.sonarsource.scanner.maven</groupId>
+				<artifactId>sonar-maven-plugin</artifactId>
+			</plugin>
+			<plugin>
+				<groupId>org.jacoco</groupId>
+				<artifactId>jacoco-maven-plugin</artifactId>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-failsafe-plugin</artifactId>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+			</plugin>
 
-            <plugin>
-                <groupId>com.mycila</groupId>
-                <artifactId>license-maven-plugin</artifactId>
-            </plugin>
-        </plugins>
-    </build>
+			<plugin>
+				<groupId>com.mycila</groupId>
+				<artifactId>license-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
 
-    <repositories>
-        <repository>
-            <id>shibboleth-releases</id>
-            <name>Shibboleth Releases Repository</name>
-            <url>https://build.shibboleth.net/maven/releases/</url>
-            <releases>
-                <enabled>true</enabled>
-                <checksumPolicy>warn</checksumPolicy>
-            </releases>
-            <snapshots>
-                <enabled>false</enabled>
-            </snapshots>
-        </repository>
-        <repository>
-            <id>shibboleth-thirdparty</id>
-            <name>Shibboleth Thirdparty Repository</name>
-            <url>https://build.shibboleth.net/maven/thirdparty/</url>
-            <releases>
-                <enabled>true</enabled>
-                <checksumPolicy>fail</checksumPolicy>
-            </releases>
-            <snapshots>
-                <enabled>false</enabled>
-            </snapshots>
-        </repository>
-    </repositories>
+	<repositories>
+		<repository>
+			<id>shibboleth-releases</id>
+			<name>Shibboleth Releases Repository</name>
+			<url>https://build.shibboleth.net/maven/releases/</url>
+			<releases>
+				<enabled>true</enabled>
+				<checksumPolicy>warn</checksumPolicy>
+			</releases>
+			<snapshots>
+				<enabled>false</enabled>
+			</snapshots>
+		</repository>
+		<repository>
+			<id>shibboleth-thirdparty</id>
+			<name>Shibboleth Thirdparty Repository</name>
+			<url>https://build.shibboleth.net/maven/thirdparty/</url>
+			<releases>
+				<enabled>true</enabled>
+				<checksumPolicy>fail</checksumPolicy>
+			</releases>
+			<snapshots>
+				<enabled>false</enabled>
+			</snapshots>
+		</repository>
+	</repositories>
 </project>