送分拉!小问题,帮我试下就好啦

VB.NET code

 Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click        SendMail("fachyou@sina.com", "fachyou@126.com", Nothing, "ssss", "sssssssssssssssssssssss")    End Sub    Public Shared Sub SendMail(ByVal sender As String, ByVal receiver As String, ByVal cc() As String, ByVal subject As String, ByVal content As String)        '   siteConfigModel = bSiteConfig.GetModel()        Try            Dim mail As MailMessage = New MailMessage(sender, receiver)            Dim smtp As SmtpClient = New SmtpClient("smtp.sina.com")            Dim nc As NetworkCredential = New NetworkCredential("fachyou@sina.com", "87654321")            mail.Subject = subject            mail.Body = content            If Not (cc Is Nothing) Then                If (cc.Length > 0) Then                    Dim item As String                    For Each item In cc                        mail.CC.Add(item)                    Next                End If            End If            mail.IsBodyHtml = True            smtp.Credentials = nc            smtp.Send(mail)        Catch ex As SmtpFailedRecipientException            Throw New Exception(ex.Message)        End Try    End Sub

这段代码发邮件!不知道是我代码问题还是smtp服务器问题,发不出去啊!哪为高手帮我看看

[解决办法]
smtp服务器问题
[解决办法]
up,vb的啊?