enable email notification task list sharepoint 2013

Question

when I try to enable email notification from advanced settings i could not find it and i search about this problem and i find some powershell script to enable it but it's not working can you give me any advice here is the powershell script

$site=Get-SPSite "http://sharepoint2013/"
$web=$site.OpenWeb()
$list=$web.Lists.TryGetList("Tasks")
if($list -ne $null)
{
   $list.EnableAssignToEmail =$true
   $list.Update()
}

Answer 1

Update : i find one soluation here Enable email notifications for Tasks list in SharePoint 2013 to update all task list to send email notification so if it's not a problem for you go ahead !

Add-PSSnapin Microsoft.Sharepoint.Powershell
[Microsoft.SharePoint.SPSecurity]::RunWithElevatedPrivileges({
$webApplicationURL = “https://Your Site.com/”
$webApp = Get-SPWebApplication $webApplicationURL

if($webApp -ne $null)
{
Write-Host “Web Application : ” + $webApp.Name

foreach($siteColl in $webApp.Sites)
{
if($siteColl -ne $null)
{
Write-Host “Site Collection : ” + $siteColl.Url
foreach($subWeb in $siteColl.AllWebs)
{
if($subWeb -ne $null)
{
#Print each Subsite
#Write-Host $subWeb.Url
Write-Host “Site: ” + $subWeb

$site=Get-SPWeb $subWeb.Url
# $web=$site.OpenWeb()
$lists=$site.Lists
if($lists -ne $null)
{

foreach ($list in $lists)
{
if ($list.BaseTemplate -like “Task*”)
{
write-host “Attempting to update: ” + $list.title
$list.EnableAssignToEmail =$true
$list.Update()
}
}
}

$subWeb.Dispose()
}
else
{
Echo $subWeb “does not exist”
}
}
$siteColl.Dispose()
}
else
{
Echo $siteColl “does not exist”
}
}
} else
{ Echo $webApplicationURL “does not exist, check the WebApplication             name”
}Remove-PsSnapin Microsoft.SharePoint.PowerShell
Echo Finish
});