Welcome email script exchange 2007

Question

Hello Team,
could you verify below my test script for Welcome Msg for new user mailbox.
Add-PSSnapin Microsoft.Exchange.Management.PowerShell.Admin
$NewUsers = Get-User -ResultSize Unlimited | Where {($_.WhenCreated -gt (get-date).addhours(-12))}
foreach ($NewUser in $NewUsers)
$SmtpClient = new-object system.net.mail.smtpClient
$MailMessage = New-Object system.net.mail.mailmessage
$SmtpClient.Host = "HubTRole.domain.com"
$mailmessage.from = ("[email protected]")
$Recipient = (Get-Recipient $NewUser.identity).PrimarySMTPAddress
$mailmessage.To.add($Recipient)
$mailmessage.Subject = “Message Subject”
$mailmessage.Body = “Type Body Here...”
$smtpclient.Send($mailmessage)
its returning error as below...
Exception calling "Add" with "1" argument(s): "The parameter 'addresses' cannot
 be an empty string.
Parameter name: addresses"
At C:\script\test.ps1:9 char:20
+ $mailmessage.To.add( <<<< $Recipient)
Exception calling "Send" with "1" argument(s): "A recipient must be specified."
At C:\script\test.ps1:12 char:17
+ $smtpclient.Send( <<<< $mailmessage)
Hoping your champ reply for same.
Regards,
Vimal Thakar

Answer 1

Can you change this line and try?
$Recipient = (Get-Recipient $NewUser.identity).PrimarySMTPAddress.tostring()
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