搜索目录中的文件找到它们并通过电子邮件发送它们

Question

在我的程序的一部分中，应用程序应该搜索安装目录中的某些文件，如果找到，应该通过电子邮件发送这些文件。到目前为止，我有：

try
{
  MailMessage mail = new MailMessage();
  string[] file1 = Directory.GetFiles("some directories", "some files");
  string[] file2 = Directory.GetFiles("some directories", "some files");
  string[] file3 = Directory.GetFiles("some directories", "some files");

  foreach (var file in file1)
  {
    Attachment someFiles = new Attachment(file);
    mail.Attachments.Add(someFiles);
  }

  foreach (var file in file2)
  {
    Attachment someFiles1 = new Attachment(file);
    mail.Attachments.Add(someFiles1);
  }

  foreach (var file in file3)
  {
    Attachment someFiles2 = new Attachment(file);
    mail.Attachments.Add(someFiles2);
  }


  SmtpClient server = new SmtpClient("smtp.gmail.com");
  mail.From = new MailAddress("someone@gmail.com");
  mail.To.Add("someone@gmail.com");
  mail.Subject = "subject";
  server.Port = 587;
  server.Credentials = new System.Net.NetworkCredential("someone@gmail.com", "password");
  server.EnableSsl = true;
  server.Send(mail);
}
catch (Exception ex)
{
    string stat = ex.ToString();
    MessageBox. Show(stat);
}

没有例外，但没有发送电子邮件。问题在哪里？