diff --git a/Gui/AddContact.qml b/Gui/AddContact.qml
index 85e3e50..c904cf1 100644
--- a/Gui/AddContact.qml
+++ b/Gui/AddContact.qml
@@ -83,7 +83,7 @@ Frame
             placeholderText: qsTr("beispiel@domain.de")
             validator: RegularExpressionValidator
             {
-                regularExpression: /([\+!#$%&‘\*\–\/\=?\^_`\.{|}\~0-9A-Za-z]{1,185})@([0-9A-Za-z\.]{1,64})\.([a-zA-z]{2,5})/
+                regularExpression: /([\+!#$%&‘\*\–\/\=?\^_`\.{|}\~\-\_0-9A-Za-z]{1,185})@([0-9A-Za-z\.\-\_]{1,64})\.([a-zA-z]{2,5})/
             }
         }
 
diff --git a/Gui/ApplicantPersonalData.qml b/Gui/ApplicantPersonalData.qml
index db473cd..6f54a56 100644
--- a/Gui/ApplicantPersonalData.qml
+++ b/Gui/ApplicantPersonalData.qml
@@ -255,9 +255,10 @@ GridLayout
         placeholderTextColor: "red"
         Layout.columnSpan: 3
         onTextChanged: checkFields()
+        placeholderText: qsTr("beispiel@domain.de")
         validator: RegularExpressionValidator
         {
-            regularExpression: /([\+!#$%&‘\*\–\/\=?\^_`\.{|}\~0-9A-Za-z]{1,185})@([0-9A-Za-z\.]{1,64})\.([a-zA-z]{2,5})/
+            regularExpression: /([\+!#$%&‘\*\–\/\=?\^_`\.{|}\~\-\_0-9A-Za-z]{1,185})@([0-9A-Za-z\.\-\_]{1,64})\.([a-zA-z]{2,5})/
         }
     }
     Label