net 发邮件有关.NET smtp发送邮件的问题

有关.NET smtp发送邮件的问题

可以参考下这个， public void SendEmail(string filetype, StiReport report, string fromaddress, string toaddress, string subject, string messageBody, string host, int port, string username, string password) { try { using (MemoryStream ms = new MemoryStream()) { string filename = ""; StiExportFormat sef = StiExportFormat.Pdf; GetFormat(filetype, ref sef, ref filename); report.ExportDocument(sef, ms); ms.Seek(0, SeekOrigin.Begin); //使用自己的邮件发送机制 System.Net.Mail.Attachment attachment = new System.Net.Mail.Attachment(ms, filename); MailMessage item = new MailMessage(fromaddress, toaddress); item.Subject = subject; item.Body = messageBody; item.Attachments.Add(attachment); SmtpClient smtp = new SmtpClient(host, port); smtp.UseDefaultCredentials = false; smtp.Credentials = new System.Net.NetworkCredential(username, password); smtp.DeliveryMethod = SmtpDeliveryMethod.Network; smtp.Send(item); ms.Close(); } } catch { } }