diff --git a/src/main/java/org/olat/core/util/mail/MailModule.java b/src/main/java/org/olat/core/util/mail/MailModule.java
index d14044263bdf82890e63381b4cac24ff4a611072..f34b790533aea63cd41aede2b467946b56f56ba0 100644
--- a/src/main/java/org/olat/core/util/mail/MailModule.java
+++ b/src/main/java/org/olat/core/util/mail/MailModule.java
@@ -47,6 +47,7 @@ public class MailModule extends AbstractSpringModule {
 	private static final String INTERN_MAIL_SYSTEM = "internSystem";
 	private static final String SHOW_RECIPIENT_NAMES = "showRecipientNames";
 	private static final String SHOW_MAIL_ADDRESSES = "showMailAddresses";
+	private static final String SHOW_RECIPIENTS_IN_INBOX = "showRecipientsInInbox";
 	private static final String RECEIVE_REAL_MAIL_USER_DEFAULT_SETTING = "receiveRealMailUserDefaultSetting";
 	
 	@Value("${mail.intern:false}")
@@ -55,6 +56,8 @@ public class MailModule extends AbstractSpringModule {
 	private boolean showRecipientNames;
 	@Value("${mail.showMailAddresses:false}")
 	private boolean showMailAddresses;
+	@Value("${mail.showRecipientsInInbox:true}")
+	private boolean showRecipientsInInbox;
 	@Value("${mail.receiveRealMailUserDefaultSetting:true}")
 	private boolean receiveRealMailUserDefaultSetting;
 	
@@ -137,7 +140,16 @@ public class MailModule extends AbstractSpringModule {
 		setStringProperty(SHOW_MAIL_ADDRESSES, showMailAddressesStr, true);
 	}
 
+	public boolean isShowRecipientsInInbox() {
+		return showRecipientsInInbox;
+	}
 	
+	public void setShowRecipientsInInbox(boolean showRecipientsInInbox) {
+		this.showRecipientsInInbox = showRecipientsInInbox;
+		String showRecipientsInInboxStr = showRecipientsInInbox ? "true" : "false";
+		setStringProperty(SHOW_RECIPIENTS_IN_INBOX, showRecipientsInInboxStr, true);
+	}
+
 	/**
 	 * Users can receive real e-mail too. This setting is the default for
 	 * users. They can change it in Preferences Panel.
@@ -189,4 +201,5 @@ public class MailModule extends AbstractSpringModule {
 	public String getMailhost() {
 		return WebappHelper.getMailConfig("mailhost");
 	}
+
 }
\ No newline at end of file
diff --git a/src/main/java/org/olat/core/util/mail/_i18n/LocalStrings_de.properties b/src/main/java/org/olat/core/util/mail/_i18n/LocalStrings_de.properties
index 003333d24eff8251788bdcec61f8046a75592b5d..d73005f5bda5a1e333d40b80b76c842321887cac 100644
--- a/src/main/java/org/olat/core/util/mail/_i18n/LocalStrings_de.properties
+++ b/src/main/java/org/olat/core/util/mail/_i18n/LocalStrings_de.properties
@@ -53,6 +53,7 @@ mail.admin.intern.only=E-Mails an das interne OLAT Postfach zustellen
 mail.admin.intern.real.mail=E-Mails an das interne OLAT Postfach und die pers\u00f6nliche E-Mail Adresse zustellen
 mail.admin.show.mail.addresses=E-Mail Adressen anzeigen
 mail.admin.show.recipient.names=Namen der Empf\u00E4nger anzeigen
+mail.admin.show.recipient.inbox=Empf\u00E4nger im Eingang anzeigen
 mail.settings=Einstellungen
 mail.template=E-Mail Vorlage
 mail.template.title=E-Mail Vorlage bearbeiten
diff --git a/src/main/java/org/olat/core/util/mail/_i18n/LocalStrings_en.properties b/src/main/java/org/olat/core/util/mail/_i18n/LocalStrings_en.properties
index 5a0326411297d56da9d0a853df16f1f10af6cd14..ee80dfacf9dd502b8440a64b4d4f6d65967ae0fa 100644
--- a/src/main/java/org/olat/core/util/mail/_i18n/LocalStrings_en.properties
+++ b/src/main/java/org/olat/core/util/mail/_i18n/LocalStrings_en.properties
@@ -18,6 +18,7 @@ mail.admin.intern.only=Send e-mails to the internal OLAT inbox
 mail.admin.intern.real.mail=Send e-Mails to the internal OLAT inbox and the personal e-mail address
 mail.admin.show.mail.addresses=Show Email address
 mail.admin.show.recipient.names=Show the name of the recipient
+mail.admin.show.recipient.inbox=Show recipients in the inbox
 mail.admin.title=E-mail inbox and outbox
 mail.attachments=Attachment
 mail.body=Message
diff --git a/src/main/java/org/olat/core/util/mail/ui/MailContextResolver.java b/src/main/java/org/olat/core/util/mail/ui/MailContextResolver.java
index 4214a38d442a762f374b63982c8a4700ac3d04d2..b5ca22395bf8e486188d4d299d63a6b7da787658 100644
--- a/src/main/java/org/olat/core/util/mail/ui/MailContextResolver.java
+++ b/src/main/java/org/olat/core/util/mail/ui/MailContextResolver.java
@@ -27,7 +27,6 @@ import org.olat.core.gui.control.WindowControl;
 /**
  * 
  * Description:<br>
- * TODO: srosse Class Description for MailContextResolver
  * 
  * <P>
  * Initial Date:  30 mars 2011 <br>
diff --git a/src/main/java/org/olat/core/util/mail/ui/MailController.java b/src/main/java/org/olat/core/util/mail/ui/MailController.java
index e9e557cd4a644c8df367f8e72006d399eb6e73ec..a742eb6b39a226d3b73efc06d67687c84e514a9e 100644
--- a/src/main/java/org/olat/core/util/mail/ui/MailController.java
+++ b/src/main/java/org/olat/core/util/mail/ui/MailController.java
@@ -62,6 +62,7 @@ public class MailController extends FormBasicController {
 	
 	private String mapperBaseURI;
 	private final boolean back;
+	private final boolean outbox;
 	private final DBMail mail;
 	private final List<DBMailAttachment> attachments;
 	private boolean showAllRecipients = false;
@@ -73,11 +74,12 @@ public class MailController extends FormBasicController {
 	@Autowired
 	private MailManager mailManager;
 
-	public MailController(UserRequest ureq, WindowControl wControl, DBMail mail, boolean back) {
+	public MailController(UserRequest ureq, WindowControl wControl, DBMail mail, boolean back, boolean outbox) {
 		super(ureq, wControl, LAYOUT_VERTICAL);
 		setTranslator(Util.createPackageTranslator(MailModule.class, ureq.getLocale()));
 		this.mail = mail;
 		this.back = back;
+		this.outbox = outbox;
 		attachments = mailManager.getAttachments(mail);
 		if(!attachments.isEmpty()) {
 			mapperBaseURI = registerMapper(ureq, new MailAttachmentMapper(mailManager));
@@ -149,7 +151,7 @@ public class MailController extends FormBasicController {
 	
 	private String getRecipients() {
 		StringBuilder sb = new StringBuilder();
-		Set<String> groups = new HashSet<String>();
+		Set<String> groups = new HashSet<>();
 		int recipientsCounter = 0;
 		int groupCounter = 0;
 		sb.append("<ul class='list-inline'>");
@@ -173,27 +175,29 @@ public class MailController extends FormBasicController {
 				groups.add(group);
 				groupCounter = 0;
 			}
-			if (mailModule.isShowRecipientNames()) {
-				if (recipient.getRecipient() != null) {
-					// recipient is an individual
-					Identity repicientIdentity = recipient.getRecipient();
-					sb.append("<li class='o_recipient'>");
-					if(groupCounter> 0) sb.append(", ");
-					sb.append("<span>").append(getFullName(recipient)).append("</span>");
-					if (mailModule.isShowMailAddresses()) {
-						sb.append(" &lt;").append(repicientIdentity.getUser().getEmail()).append("&gt;");
+			if (outbox || mailModule.isShowRecipientsInInbox()) {
+				if (mailModule.isShowRecipientNames()) {
+					if (recipient.getRecipient() != null) {
+						// recipient is an individual
+						Identity repicientIdentity = recipient.getRecipient();
+						sb.append("<li class='o_recipient'>");
+						if(groupCounter> 0) sb.append(", ");
+						sb.append("<span>").append(getFullName(recipient)).append("</span>");
+						if (mailModule.isShowMailAddresses()) {
+							sb.append(" &lt;").append(repicientIdentity.getUser().getEmail()).append("&gt;");
+						}
+						sb.append("</li>");
+						groupCounter++;
+					}
+					if (recipient.getEmailAddress() != null) {
+						// recipient is not an OpenOLAT identity but an external email
+						sb.append("<li class='o_mail'>");
+						if(groupCounter > 0) sb.append(", ");
+						sb.append("&lt;");
+						sb.append(recipient.getEmailAddress());
+						sb.append("&gt;</li>");
+						groupCounter++;
 					}
-					sb.append("</li>");
-					groupCounter++;
-				}
-				if (recipient.getEmailAddress() != null) {
-					// recipient is not an OpenOLAT identity but an external email
-					sb.append("<li class='o_mail'>");
-					if(groupCounter > 0) sb.append(", ");
-					sb.append("&lt;");
-					sb.append(recipient.getEmailAddress());
-					sb.append("&gt;</li>");
-					groupCounter++;
 				}
 			}
 		}
diff --git a/src/main/java/org/olat/core/util/mail/ui/MailListController.java b/src/main/java/org/olat/core/util/mail/ui/MailListController.java
index 779e95923760dae0e5b536b6f7d065a36fdc1fc8..0cc95811eef5d0ac4ef90b4acbd4ddc11d505ba7 100644
--- a/src/main/java/org/olat/core/util/mail/ui/MailListController.java
+++ b/src/main/java/org/olat/core/util/mail/ui/MailListController.java
@@ -238,7 +238,7 @@ public class MailListController extends BasicController implements Activateable2
 			}
 			
 			//strip meta emails
-			Set<String> metaIds = new HashSet<String>();
+			Set<String> metaIds = new HashSet<>();
 			for(Iterator<DBMailLight> it=mails.iterator(); it.hasNext(); ) {
 				DBMailLight mail = it.next();
 				if(StringHelper.containsNonWhitespace(mail.getMetaId())) {
@@ -254,7 +254,7 @@ public class MailListController extends BasicController implements Activateable2
 		}
 		
 		//extract contexts
-		Map<String, String> bpToContexts = new HashMap<String, String>();
+		Map<String, String> bpToContexts = new HashMap<>();
 		for(DBMailLight mail:mails) {
 			String businessPath = mail.getContext().getBusinessPath();
 			if(StringHelper.containsNonWhitespace(businessPath) && !bpToContexts.containsKey(businessPath)) {
@@ -266,8 +266,8 @@ public class MailListController extends BasicController implements Activateable2
 		}
 		
 		if(!bpToContexts.isEmpty()) {
-			List<ShortName> filters = new ArrayList<ShortName>();
-			Map<String, MailContextShortName> uniqueNames = new HashMap<String,MailContextShortName>();
+			List<ShortName> filters = new ArrayList<>();
+			Map<String, MailContextShortName> uniqueNames = new HashMap<>();
 			ShortName allContextFilter = new MailContextShortName("-");
 			filters.add(allContextFilter);
 			for(Map.Entry<String, String> entry:bpToContexts.entrySet()) {
@@ -462,7 +462,7 @@ public class MailListController extends BasicController implements Activateable2
 		boolean back = !StringHelper.containsNonWhitespace(mail.getMetaId()) || !outbox;
 		OLATResourceable ores = OresHelper.createOLATResourceableInstance(DBMail.class, mail.getKey());
 		WindowControl bwControl = addToHistory(ureq, ores, null);
-		mailCtr = new MailController(ureq, bwControl, mail, back);
+		mailCtr = new MailController(ureq, bwControl, mail, back, outbox);
 		listenTo(mailCtr);
 		mainVC.put(MAIN_CMP, mailCtr.getInitialComponent());
 		
diff --git a/src/main/java/org/olat/core/util/mail/ui/MailSettingsAdminController.java b/src/main/java/org/olat/core/util/mail/ui/MailSettingsAdminController.java
index af226332baa93f450d3fc99c003fef9a35d59268..dbe29f1a69ee8cc7d3ba226f38d13b235117d706 100644
--- a/src/main/java/org/olat/core/util/mail/ui/MailSettingsAdminController.java
+++ b/src/main/java/org/olat/core/util/mail/ui/MailSettingsAdminController.java
@@ -44,7 +44,10 @@ import org.springframework.beans.factory.annotation.Autowired;
  */
 public class MailSettingsAdminController extends FormBasicController  {
 
-	private MultipleSelectionElement enabled, showRecipientNamesEl, showMailAddressesEl;
+	private MultipleSelectionElement enabled;
+	private MultipleSelectionElement showRecipientNamesEl;
+	private MultipleSelectionElement showMailAddressesEl;
+	private MultipleSelectionElement showRecipientsInInboxEl;
 	private SingleSelection userDefaultSettingEl;
 	
 	private String[] values = {""};
@@ -99,6 +102,11 @@ public class MailSettingsAdminController extends FormBasicController  {
 		showMailAddressesEl.addActionListener(FormEvent.ONCHANGE);
 		showMailAddressesEl.setEnabled(internEnabled);
 		
+		showRecipientsInInboxEl = uifactory.addCheckboxesHorizontal("mail.admin.show.recipient.inbox", formLayout, keys, values);
+		showRecipientsInInboxEl.select(keys[0], mailModule.isShowRecipientsInInbox());
+		showRecipientsInInboxEl.addActionListener(FormEvent.ONCHANGE);
+		showRecipientsInInboxEl.setEnabled(internEnabled);
+		
 		final FormLayoutContainer buttonGroupLayout = FormLayoutContainer.createButtonLayout("buttonLayout", getTranslator());
 		buttonGroupLayout.setRootForm(mainForm);
 		formLayout.add(buttonGroupLayout);
@@ -130,6 +138,10 @@ public class MailSettingsAdminController extends FormBasicController  {
 		boolean showMailaddresses = !showMailAddressesEl.getSelectedKeys().isEmpty();
 		mailModule.setShowMailAddresses(showMailaddresses);
 		showMailAddressesEl.setEnabled(on);
+		// recipients in inbox
+		boolean showRecipientsInInbox = !showRecipientsInInboxEl.getSelectedKeys().isEmpty();
+		mailModule.setShowRecipientsInInbox(showRecipientsInInbox);
+		showRecipientsInInboxEl.setEnabled(on);
 
 		getWindowControl().setInfo("saved");
 	}
@@ -141,6 +153,7 @@ public class MailSettingsAdminController extends FormBasicController  {
 			userDefaultSettingEl.setEnabled(on);
 			showMailAddressesEl.setEnabled(on);
 			showRecipientNamesEl.setEnabled(on);
+			showRecipientsInInboxEl.setEnabled(on);
 		}
 		super.formInnerEvent(ureq, source, event);
 	}
diff --git a/src/main/resources/serviceconfig/olat.properties b/src/main/resources/serviceconfig/olat.properties
index 901ea2421d320d6c7174f2e6cf06fad61a3aed90..20dcd4ec50e1378cc26f0f3a28dcd1a804d5c716 100644
--- a/src/main/resources/serviceconfig/olat.properties
+++ b/src/main/resources/serviceconfig/olat.properties
@@ -147,6 +147,7 @@ mail.attachment.maxsize=5
 mail.intern=false
 mail.showRecipientNames=true
 mail.showMailAddresses=false
+mail.showRecipientsInInbox=true
 mail.receiveRealMailUserDefaultSetting=true
 
 ########################################################################