是否从WinForms应用发送带有附件的电子邮件?

尝试这样的方法-->

MailMessage theMailMessage = new MailMessage("from@email.com", "to@email.com");
theMailMessage.Body = "body email message here";
theMailMessage.Attachments.Add(new Attachment("pathToEmailAttachment"));
theMailMessage.Subject = "Subject here";

SmtpClient theClient = new SmtpClient("IP.Address.Of.Smtp");
theClient.UseDefaultCredentials = false;
System.Net.NetworkCredential theCredential = new System.Net.NetworkCredential("user@name.com", "password");
theClient.Credentials = theCredential;
theClient.Send(theMailMessage);

好的,根据你的编辑和其他信息,我在 Jon Galloway , "Sending files via the default e-mail client" .