diff --git a/server/src/main/resources/password/pwm/config/PwmSetting.xml b/server/src/main/resources/password/pwm/config/PwmSetting.xml
index d084852a8..c560eab75 100644
--- a/server/src/main/resources/password/pwm/config/PwmSetting.xml
+++ b/server/src/main/resources/password/pwm/config/PwmSetting.xml
@@ -2718,7 +2718,7 @@
         <flag>Form_ShowReadOnlyOption</flag>
         <flag>Form_ShowSource</flag>
         <default>
-            <value>{"name":"mail","minimumLength":1,"maximumLength":64,"type":"email","required":true,"confirmationRequired":false,"readonly":false,"unique":true,"labels":{"":"Email Address"},"regexErrors":{"":"Email Address has invalid characters"},"description":{"":""},"placeholder":"username@example.com","selectOptions":{},regex:"^[a-zA-Z0-9 .,'@]*$"}</value>
+            <value>{"name":"mail","minimumLength":1,"maximumLength":64,"type":"email","required":true,"confirmationRequired":false,"readonly":false,"unique":true,"labels":{"":"Email Address"},"regexErrors":{"":"Email Address has invalid characters"},"description":{"":""},"placeholder":"username@example.com","selectOptions":{},regex:"^[a-zA-Z0-9!#$%&amp;'*+-/=?^_`{|}~$"}</value>
             <value>{"name":"givenName","minimumLength":1,"maximumLength":64,"type":"text","required":true,"confirmationRequired":false,"readonly":false,"labels":{"":"First Name"},"regexErrors":{"":""},"description":{"":""},"selectOptions":{},regex:"^[a-zA-Z0-9 .,'@]*$"}</value>
             <value>{"name":"sn","minimumLength":1,"maximumLength":64,"type":"text","required":true,"confirmationRequired":false,"readonly":false,"labels":{"":"Last Name"},"regexErrors":{"":""},"description":{"":""},"selectOptions":{},regex:"^[a-zA-Z0-9 .,'@]*$"}</value>
         </default>