diff --git a/pom.xml b/pom.xml
index f9bff64..45739b0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>de.kreth.vaadin.clubhelper</groupId>
@@ -47,10 +49,6 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-jdbc</artifactId>
 		</dependency>
-		<!-- <dependency> -->
-		<!-- <groupId>org.springframework.boot</groupId> -->
-		<!-- <artifactId>spring-boot-starter-security</artifactId> -->
-		<!-- </dependency> -->
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-data-jpa</artifactId>
@@ -119,10 +117,12 @@
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-simple</artifactId>
 		</dependency>
-		<!-- <dependency> -->
-		<!-- <groupId>ch.qos.logback</groupId> -->
-		<!-- <artifactId>logback-classic</artifactId> -->
-		<!-- </dependency> -->
+		<dependency>
+			<groupId>com.googlecode.libphonenumber</groupId>
+			<artifactId>libphonenumber</artifactId>
+			<version>8.10.4</version>
+		</dependency>
+
 
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
@@ -145,12 +145,12 @@
 			<scope>test</scope>
 		</dependency>
 
-<!-- 		<dependency> -->
-<!-- 			<groupId>org.seleniumhq.selenium</groupId> -->
-<!-- 			<artifactId>selenium-server</artifactId> -->
-<!-- 			<version>${selenium.version}</version> -->
-<!-- 			<scope>test</scope> -->
-<!-- 		</dependency> -->
+		<!-- <dependency> -->
+		<!-- <groupId>org.seleniumhq.selenium</groupId> -->
+		<!-- <artifactId>selenium-server</artifactId> -->
+		<!-- <version>${selenium.version}</version> -->
+		<!-- <scope>test</scope> -->
+		<!-- </dependency> -->
 		<dependency>
 			<groupId>org.seleniumhq.selenium</groupId>
 			<artifactId>selenium-java</artifactId>
diff --git a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/AbstractDataGrid.java b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/AbstractDataGrid.java
index f4b5aad..f945064 100644
--- a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/AbstractDataGrid.java
+++ b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/AbstractDataGrid.java
@@ -6,6 +6,8 @@ import java.util.List;
 import java.util.function.Consumer;
 
 import com.vaadin.data.Binder;
+import com.vaadin.data.ValidationResult;
+import com.vaadin.data.ValueContext;
 import com.vaadin.data.ValueProvider;
 import com.vaadin.data.provider.DataProvider;
 import com.vaadin.data.provider.ListDataProvider;
@@ -49,6 +51,7 @@ public abstract class AbstractDataGrid<T> extends VerticalLayout {
 
 		Editor<T> editor = grid.getEditor();
 		editor.setEnabled(true);
+		editor.addOpenListener(event -> grid.getEditor().getBinder().setBean(event.getBean()));
 		grid.addSelectionListener(ev -> editedListener.editObject = null);
 		Binder<T> binder = editor.getBinder();
 		editor.addSaveListener(ev -> {
@@ -62,6 +65,8 @@ public abstract class AbstractDataGrid<T> extends VerticalLayout {
 
 		createColumnAndBinding(binder);
 
+		binder.withValidator((obj, context) -> validate(obj, context));
+
 		deleteButtonColumn = grid.addComponentColumn(c -> {
 			Button deleteButton = new Button(VaadinIcons.TRASH);
 			deleteButton.addClickListener(ev -> deleteConsumer.accept(c));
@@ -84,6 +89,8 @@ public abstract class AbstractDataGrid<T> extends VerticalLayout {
 		addComponents(buttonLayout, grid);
 	}
 
+	protected abstract ValidationResult validate(T obj, ValueContext context);
+
 	public void addSuccessConsumer(Consumer<T> consumer) {
 		this.successConsumers.add(consumer);
 	}
diff --git a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/ContactGrid.java b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/ContactGrid.java
index 6be3252..b81a8d8 100644
--- a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/ContactGrid.java
+++ b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/ContactGrid.java
@@ -3,8 +3,14 @@ package de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.components;
 import java.util.Collection;
 import java.util.stream.Collectors;
 
+import com.google.i18n.phonenumbers.NumberParseException;
+import com.google.i18n.phonenumbers.PhoneNumberUtil;
+import com.google.i18n.phonenumbers.Phonenumber.PhoneNumber;
 import com.vaadin.data.Binder;
 import com.vaadin.data.Binder.Binding;
+import com.vaadin.data.ValidationResult;
+import com.vaadin.data.ValueContext;
+import com.vaadin.data.validator.EmailValidator;
 import com.vaadin.ui.TextField;
 
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.data.Contact;
@@ -16,6 +22,7 @@ public class ContactGrid extends AbstractDataGrid<Contact> {
 	 * 
 	 */
 	private static final long serialVersionUID = -2573761302198992085L;
+	private static final PhoneNumberUtil phoneUtil = PhoneNumberUtil.getInstance();
 
 	@Override
 	public void createColumnAndBinding(Binder<Contact> binder) {
@@ -27,6 +34,27 @@ public class ContactGrid extends AbstractDataGrid<Contact> {
 		addColumn(Contact::getValue).setCaption("Wert").setEditorBinding(valueBinding);
 	}
 
+	@Override
+	protected ValidationResult validate(Contact obj, ValueContext context) {
+		if (obj.getType().equalsIgnoreCase("email")) {
+			return new EmailValidator("Emailformat nicht gültig!").apply(obj.getValue(), context);
+		} else if (obj.getType().equalsIgnoreCase("Telefon") || obj.getType().equalsIgnoreCase("Mobile")) {
+			try {
+				PhoneNumber phone = phoneUtil.parse(obj.getValue(), "DE");
+				if (phoneUtil.isValidNumber(phone)) {
+					obj.setValue(phoneUtil.format(phone,
+							com.google.i18n.phonenumbers.PhoneNumberUtil.PhoneNumberFormat.INTERNATIONAL));
+					return ValidationResult.ok();
+				} else {
+					return ValidationResult.error("Fehler beim Validieren von Telefonnummer: " + obj.getValue());
+				}
+			} catch (NumberParseException e) {
+				return ValidationResult.error("Fehler beim Validieren von Telefonnummer: " + obj.getValue());
+			}
+		}
+		return ValidationResult.error("Keine Validation für Typ " + obj.getType());
+	}
+
 	@Override
 	protected Collection<? extends Contact> readValues(Person person) {
 		return person.getContacts().stream().filter(e -> e.getDeleted() == null).collect(Collectors.toList());
diff --git a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/RelationComponent.java b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/RelationComponent.java
index 23e4df5..184bc9f 100644
--- a/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/RelationComponent.java
+++ b/src/main/java/de/kreth/vaadin/clubhelper/vaadinclubhelper/ui/components/RelationComponent.java
@@ -3,6 +3,8 @@ package de.kreth.vaadin.clubhelper.vaadinclubhelper.ui.components;
 import java.util.Collection;
 
 import com.vaadin.data.Binder;
+import com.vaadin.data.ValidationResult;
+import com.vaadin.data.ValueContext;
 
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.dao.PersonDao;
 import de.kreth.vaadin.clubhelper.vaadinclubhelper.data.Person;
@@ -35,4 +37,9 @@ public class RelationComponent extends AbstractDataGrid<Relation> {
 		return null;
 	}
 
+	@Override
+	protected ValidationResult validate(Relation obj, ValueContext context) {
+		return ValidationResult.ok();
+	}
+
 }