SMTPClient error from Web Developer Express

[CookieNZ]

This is my declaration block:-

Sub page_load()
Dim mailmessage As SmtpClient

mailmessage.Send( _
paul.cook@gret.co.nz, _
"Sending Mail!", _
"Hello")

End Sub

However, Web Developer Express errors saying that mailmessage is used before a value is assigned. Any thoughts?