小编Rag*_*ran的帖子

我正在使用 .Net Core 1.2 和 Amazon SES（SimpleEmail）来发送电子邮件（原始电子邮件）。

以下是我们在 .net framework 4.5 中使用的工作代码版本：

   public MemoryStream ConvertMailMessageToMemoryStream(MailMessage message)
    {
        Assembly assembly = typeof(SmtpClient).Assembly;

        Type mailWriterType = assembly.GetType("System.Net.Mail.MailWriter");

        MemoryStream fileStream = new MemoryStream();

        ConstructorInfo mailWriterContructor = mailWriterType.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic, null, new[] { typeof(Stream) }, null);

        object mailWriter = mailWriterContructor.Invoke(new object[] { fileStream });

        MethodInfo sendMethod = typeof(MailMessage).GetMethod("Send", BindingFlags.Instance | BindingFlags.NonPublic);

        sendMethod.Invoke(message, BindingFlags.Instance | BindingFlags.NonPublic, null, new[] { mailWriter, true, true }, null);

        MethodInfo closeMethod = mailWriter.GetType().GetMethod("Close", BindingFlags.Instance | BindingFlags.NonPublic);

        closeMethod.Invoke(mailWriter, BindingFlags.Instance | BindingFlags.NonPublic, …