vb.net 发Mail

Private Sub A1()
'创建发件连接,根据你的发送邮箱的SMTP设置填充

Dim a As System.Net.Mail.Attachment
Dim smtp As New System.Net.Mail.SmtpClient("郵箱地址", 25)

'发件邮箱身份验证,参数分别为 发件邮箱登录名和密码
smtp.Credentials = New System.Net.NetworkCredential("登录名", "密码")

'创建邮件
Dim mail As New System.Net.Mail.MailMessage()

'邮件主题
mail.Subject = "邮件主题測試"

'主题编码
mail.SubjectEncoding = System.Text.Encoding.GetEncoding("GB2312")

'邮件正文件编码
mail.BodyEncoding = System.Text.Encoding.GetEncoding("GB2312")

'发件人邮箱
mail.From = New System.Net.Mail.MailAddress("发件人邮箱")

'邮件优先级
mail.Priority = System.Net.Mail.MailPriority.Normal

'HTML格式的邮件,为false则发送纯文本邮箱
mail.IsBodyHtml = False

'邮件内容
mail.Body = "邮件内容測試"

'添加收件人
mail.To.Add("leo.chen@deca.com.tw")

a = New System.Net.Mail.Attachment("D:\ATT2000.xls") : a.Name = "ATT2000.xls" : mail.Attachments.Add(a) '加入附件,附件文件名,及用于收件人收到附件时显示的名称

Try
smtp.Send(mail)
MessageBox.Show("发送成功")
Catch
MessageBox.Show("发送失败")
Finally
mail.Dispose()
End Try

End Sub