Index: TrunkContinuum/continuum-webapp/src/main/resources/org/apache/maven/continuum/web/action/notifier/MailProjectNotifierEditAction-mailProjectNotifierSave-validation.xml
===================================================================
--- TrunkContinuum/continuum-webapp/src/main/resources/org/apache/maven/continuum/web/action/notifier/MailProjectNotifierEditAction-mailProjectNotifierSave-validation.xml	(revision 673026)
+++ TrunkContinuum/continuum-webapp/src/main/resources/org/apache/maven/continuum/web/action/notifier/MailProjectNotifierEditAction-mailProjectNotifierSave-validation.xml	(working copy)
@@ -27,7 +27,7 @@
       <message key="mailNotifier.address.required"/>
     </field-validator>
     <field-validator type="regex">
-      <param name="expression"><![CDATA[(^[_A-Za-z0-9-]+[_A-Za-z0-9-+]*(\.[_A-Za-z0-9-+]+)*@([A-Za-z0-9-])+(\.[A-Za-z0-9-]+)*((\.[A-Za-z0-9]{2,})|(\.[A-Za-z0-9]{2,}\.[A-Za-z0-9]{2,}))$)]]></param>
+      <param name="expression"><![CDATA[(^[_A-Za-z0-9-\&]+[\&_A-Za-z0-9-+]*(\.[_A-Za-z0-9-+\&]+)*@([A-Za-z0-9-\&])+(\.[A-Za-z0-9-]+)*((\.[A-Za-z0-9]{2,})|(\.[A-Za-z0-9]{2,}\.[A-Za-z0-9]{2,}))$)]]></param>
       <message key="mailNotifier.address.invalid"/>
     </field-validator>
   </field>
Index: TrunkContinuum/continuum-webapp/src/main/resources/org/apache/maven/continuum/web/action/notifier/MailGroupNotifierEditAction-mailProjectGroupNotifierSave-validation.xml
===================================================================
--- TrunkContinuum/continuum-webapp/src/main/resources/org/apache/maven/continuum/web/action/notifier/MailGroupNotifierEditAction-mailProjectGroupNotifierSave-validation.xml	(revision 673026)
+++ TrunkContinuum/continuum-webapp/src/main/resources/org/apache/maven/continuum/web/action/notifier/MailGroupNotifierEditAction-mailProjectGroupNotifierSave-validation.xml	(working copy)
@@ -27,7 +27,7 @@
       <message key="mailNotifier.address.required"/>
     </field-validator>
     <field-validator type="regex">
-      <param name="expression"><![CDATA[(^[_A-Za-z0-9-]+[_A-Za-z0-9-+]*(\.[_A-Za-z0-9-+]+)*@([A-Za-z0-9-])+(\.[A-Za-z0-9-]+)*((\.[A-Za-z0-9]{2,})|(\.[A-Za-z0-9]{2,}\.[A-Za-z0-9]{2,}))$)]]></param>
+      <param name="expression"><![CDATA[(^[_A-Za-z0-9-\&]+[\&_A-Za-z0-9-+]*(\.[_A-Za-z0-9-+\&]+)*@([A-Za-z0-9-\&])+(\.[A-Za-z0-9-]+)*((\.[A-Za-z0-9]{2,})|(\.[A-Za-z0-9]{2,}\.[A-Za-z0-9]{2,}))$)]]></param>
       <message key="mailNotifier.address.invalid"/>
     </field-validator>
   </field>