diff --git a/account-dao/pom.xml b/account-dao/pom.xml
index ee9934d..0cced5a 100644
--- a/account-dao/pom.xml
+++ b/account-dao/pom.xml
@@ -14,6 +14,7 @@
     <name>shared-account-dao</name>    
        
     <dependencies>
+        <!-- TODO - remove dependencies from GSON and Jackson -->
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
@@ -21,8 +22,11 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-annotations</artifactId>
-            <version>2.9.8</version>
         </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+        </dependency>        
         <dependency>
             <groupId>de.muehlencord.shared</groupId>
             <artifactId>shared-util</artifactId>
@@ -45,11 +49,5 @@
             <version>5.3.1</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>2.9.8</version>
-            <type>jar</type>
-        </dependency>
     </dependencies>
 </project>
\ No newline at end of file
diff --git a/account-ui/src/main/java/de/muehlencord/shared/account/web/PersistenceContextFactory.java b/account-ui/src/main/java/de/muehlencord/shared/account/web/PersistenceContextFactory.java
index bce1718..64fb739 100644
--- a/account-ui/src/main/java/de/muehlencord/shared/account/web/PersistenceContextFactory.java
+++ b/account-ui/src/main/java/de/muehlencord/shared/account/web/PersistenceContextFactory.java
@@ -1,7 +1,7 @@
 package de.muehlencord.shared.account.web;
 
 import de.muehlencord.shared.account.util.AccountPU;
-import de.muehlencord.shared.account.util.ApplicationPU;
+import de.muehlencord.shared.db.ApplicationPU;
 import javax.enterprise.context.ApplicationScoped;
 import javax.enterprise.context.RequestScoped;
 import javax.enterprise.inject.Disposes;
diff --git a/network/src/main/java/de/muehlencord/shared/network/mail/exchange/ExchangeMailReader.java b/network/src/main/java/de/muehlencord/shared/network/mail/exchange/ExchangeMailReader.java
index 5d47f67..228aa67 100644
--- a/network/src/main/java/de/muehlencord/shared/network/mail/exchange/ExchangeMailReader.java
+++ b/network/src/main/java/de/muehlencord/shared/network/mail/exchange/ExchangeMailReader.java
@@ -7,12 +7,14 @@ import de.muehlencord.shared.network.mail.MailReaderConnectionException;
 import de.muehlencord.shared.network.mail.MailReaderException;
 import java.net.URI;
 import java.util.ArrayList;
+import java.util.EnumSet;
 import java.util.Iterator;
 import java.util.List;
 import microsoft.exchange.webservices.data.autodiscover.IAutodiscoverRedirectionUrl;
 import microsoft.exchange.webservices.data.core.ExchangeService;
 import microsoft.exchange.webservices.data.core.PropertySet;
 import microsoft.exchange.webservices.data.core.enumeration.misc.ExchangeVersion;
+import microsoft.exchange.webservices.data.core.enumeration.misc.TraceFlags;
 import microsoft.exchange.webservices.data.core.enumeration.property.BasePropertySet;
 import microsoft.exchange.webservices.data.core.enumeration.property.WellKnownFolderName;
 import microsoft.exchange.webservices.data.core.exception.service.local.ServiceLocalException;
@@ -21,6 +23,7 @@ import microsoft.exchange.webservices.data.core.service.item.Item;
 import microsoft.exchange.webservices.data.core.service.schema.EmailMessageSchema;
 import microsoft.exchange.webservices.data.credential.ExchangeCredentials;
 import microsoft.exchange.webservices.data.credential.WebCredentials;
+import microsoft.exchange.webservices.data.misc.ITraceListener;
 import microsoft.exchange.webservices.data.property.complex.InternetMessageHeaderCollection;
 import microsoft.exchange.webservices.data.search.FindFoldersResults;
 import microsoft.exchange.webservices.data.search.FindItemsResults;
@@ -35,7 +38,7 @@ import org.slf4j.LoggerFactory;
  * @author Joern Muehlencord <joern at muehlencord.de>
  */
 public class ExchangeMailReader implements MailReader {
-    
+
     private static final Logger LOGGER = LoggerFactory.getLogger(ExchangeMailReader.class);
     private final MailReaderConfiguration configuration;
     private ExchangeService service = null;
@@ -53,10 +56,21 @@ public class ExchangeMailReader implements MailReader {
             String emailAddress = getConfiguration().getEmailAddress();
 
             service = new ExchangeService(ExchangeVersion.Exchange2010_SP2);
+            // enable trace logging
+            service.setTraceEnabled(true);
+            service.setTraceFlags(EnumSet.allOf(TraceFlags.class)); // can also be restricted
+            service.setTraceListener(new ITraceListener() {                
+                public void trace(String traceType, String traceMessage) {
+                    if (LOGGER.isTraceEnabled()) {
+                        LOGGER.trace("Type: {}, Message: {}", traceType, traceMessage); 
+                    }                    
+                }
+            });
+            service.getHttpHeaders().put("cookie-policy", "standard");
 
             ExchangeCredentials credentials = new WebCredentials(userName, password);
             service.setCredentials(credentials);
-            if ((hostName == null) || (hostName.trim().equals (""))) {
+            if ((hostName == null) || (hostName.trim().equals(""))) {
                 service.autodiscoverUrl(emailAddress, new RedirectionUrlCallback());
             } else {
                 service.setUrl(new URI(hostName));
@@ -245,15 +259,15 @@ public class ExchangeMailReader implements MailReader {
 }
 
 class RedirectionUrlCallback implements IAutodiscoverRedirectionUrl {
-    
+
     private static final Logger LOGGER = LoggerFactory.getLogger(RedirectionUrlCallback.class);
 
     @Override
     public boolean autodiscoverRedirectionUrlValidationCallback(String redirectionUrl) {
         if (LOGGER.isDebugEnabled()) {
-            LOGGER.debug("redirectUrl found: {}", redirectionUrl); 
-        }        
-        
+            LOGGER.debug("redirectUrl found: {}", redirectionUrl);
+        }
+
         return redirectionUrl.toLowerCase().startsWith("https://");
     }
 }
diff --git a/network/src/test/resources/log4j.xml b/network/src/test/resources/log4j.xml
index 2f69c97..ef9e1bb 100644
--- a/network/src/test/resources/log4j.xml
+++ b/network/src/test/resources/log4j.xml
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>  
-<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">  
+<!DOCTYPE log4j:configuration PUBLIC "-//APACHE//DTD LOG4J 1.2//EN" "http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/xml/doc-files/log4j.dtd">
 <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"  
                      debug="true">  
+
     <appender name="consoleAppender" class="org.apache.log4j.ConsoleAppender">
-        <param name="DatePattern" value="'.'yyyy-MM-dd" />
         <layout class="org.apache.log4j.PatternLayout">           
             <param name="ConversionPattern" value="%d{ISO8601} %-5p [%c] %m%n" />
         </layout>
-    </appender>    
-    
-    <category name="de.muehlencord">
+    </appender>
+
+    <category name="com.dieboldnixdorf">
         <priority value="DEBUG"/>
-    </category>    
+    </category>        
         
     <category name="com.sun">
         <priority value="WARN"/>
@@ -19,13 +19,12 @@
     
     <category name="javax.xml">
         <priority value="WARN"/>
-    </category>   
+    </category>  
     
-    <category name="org.apache.commons">
-        <priority value="WARN"/>
-    </category>   
+    <logger name="org.hibernate">
+        <level value="INFO"/> 
+    </logger>      
                        
-                      
     <root>
         <level value="DEBUG" />
         <appender-ref ref="consoleAppender" />     
diff --git a/pom.xml b/pom.xml
index 6d5ef30..4f1d477 100644
--- a/pom.xml
+++ b/pom.xml
@@ -141,6 +141,12 @@
                 <artifactId>jackson-annotations</artifactId>
                 <version>2.9.8</version>
                 <type>jar</type>
+            </dependency>
+            <dependency>
+                <groupId>com.fasterxml.jackson.core</groupId>
+                <artifactId>jackson-databind</artifactId>
+                <version>2.9.8</version>
+                <type>jar</type>
             </dependency>            
             <dependency>
                 <groupId>org.apache.shiro</groupId>