如何实现电子邮件的自动发送？

%@import namespace="system.web.uit"%>
dim mail as new mailmessage  

 ' 建立一个mailmessage对象.
mail.to=收件人
mail.form=送件人
mail.subject=主题
mail.bodyformat=格式
mail.body=内容

smtpmail.send(mail)

    具体代码如下：

%@ Import Namespace="System.Web.Util" %>

html>

head>

title>千花飞舞之电子邮件发送/title>

/head>

body BgColor="White">

Form runat="server">
Table Border=1>
  Tr>Td>收件人：/Td>
  Td>Input Type="Text" id="mailTo" Size=40 runat="server"/>/Td>/Tr>
  Tr>Td>发件人：/Td>
  Td>Input Type="Text" id="mailFrom" Size=40 runat="server"/>/Td>/Tr>
  Tr>Td>主题:/Td>
  Td>Input Type="Text" id="mailSubject" Size=40 runat="server"/>/Td>/Tr>
  Tr>Td>内容:/Td>
  Td>TextArea id="mailbody" Rows=8 Cols=60 runat="server">
  /TextArea>
  /Td>/Tr>
/Table>
Input Type="Button" Value="立即发送" id="Button1"       OnServerClick="Button1_Click" runat="server"/>
/Form>

asp:Label id="Label1" runat="server"/>
/body>/html>

script Language="VB" runat="server">

   Sub Button1_Click(sender As Object, e As EventArgs)
      Dim mail As MailMessage = New MailMessage

      mail.To= mailTo.Value
      mail.From= mailFrom.Value
      mail.Subject= mailSubject.Value
      mail.bodyFormat=mail.format.text
      mail.body= mailbody.Value

' 读取表单的mailto等，分别指定给mail对象的to等属性.

      SmtpMail.Send(mail)

    ' 调用smtpmail发送.

      Label1.Text = "恭喜,邮件发送成功!"
   End Sub

/script>

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