diff --git a/outllook_pal_tools/outlook_pal_toolsManifest/outlook_pal_tools.xml b/outllook_pal_tools/outlook_pal_toolsManifest/outlook_pal_tools.xml
index 8fcdf24..1813760 100644
--- a/outllook_pal_tools/outlook_pal_toolsManifest/outlook_pal_tools.xml
+++ b/outllook_pal_tools/outlook_pal_toolsManifest/outlook_pal_tools.xml
@@ -28,7 +28,7 @@
 	</Hosts>
 	<Requirements>
 		<Sets>
-			<Set Name="Mailbox" MinVersion="1.5"/>
+			<Set Name="Mailbox" MinVersion="1.1"/>
 		</Sets>
 	</Requirements>
 	<FormSettings>
@@ -46,7 +46,6 @@
 	</Rule>
 	<DisableEntityHighlighting>false</DisableEntityHighlighting>
 	<VersionOverrides xmlns="http://schemas.microsoft.com/office/mailappversionoverrides" xsi:type="VersionOverridesV1_0">
-		<VersionOverrides xmlns="http://schemas.microsoft.com/office/mailappversionoverrides/1.1" xsi:type="VersionOverridesV1_1">
 			<Requirements>
 				<bt:Sets DefaultMinVersion="1.3">
 					<bt:Set Name="Mailbox"/>
@@ -213,7 +212,6 @@
 					<bt:String id="PAL.Menu.Tooltip" DefaultValue="Inserisci l'invito alla registrazione al portale visitatori." />
 					<bt:String id="PAL.Menu2.Tooltip" DefaultValue="Archivia le mail in sharepoint." />
 				</bt:LongStrings>
-			</Resources>
-		</VersionOverrides>
+			</Resources>		
 	</VersionOverrides>
 </OfficeApp>
\ No newline at end of file