如何使用asp.net向多个收件人发送电子邮件？

这是我的SendMail功能：

Public Function SendMail(ByVal ToEmail As String,ByVal FromEmail As String,ByVal Subject As String,ByVal Body As String,Optional ByVal bccEmail As String = "",Optional ByVal bIsHTML As Boolean = False) As Boolean
    Try
        Dim msgMail As New MailMessage(FromEmail,ToEmail,Subject,Body)
        msgMail.IsBodyHtml = bIsHTML
        If bccEmail <> "" Then
            msgMail.Bcc.Add(bccEmail)
        End If
        Dim smtp As New SmtpClient
            smtp.Host = "myServer"

        smtp.Send(msgMail)
        SendMail = True
    Catch ex As Exception
        DoTrace(ex.Source,ex.Message)
        SendMail = False
    End Try
End Function