保存System.Net.mail.MailMessage作爲.msg文件

我正在建立一個應用程序，我有義務創建一個MailMessage（System.Net.mail.MailMessage）並將它保存在磁盤上，因爲.msg擴展名不是.eml保存System.Net.mail.MailMessage作爲.msg文件

下面是我使用保存作爲MAILMESSAGE .msg文件的方法：

public static void Save(MailMessage Message, string FileName) 
    { 
     Assembly assembly = typeof(SmtpClient).Assembly; 
     Type _mailWriterType = 
      assembly.GetType("System.Net.Mail.MailWriter"); 

     using (FileStream _fileStream = 
       new FileStream(FileName, FileMode.Create)) 
     { 
      // Get reflection info for MailWriter contructor 
      ConstructorInfo _mailWriterContructor = 
       _mailWriterType.GetConstructor(
        BindingFlags.Instance | BindingFlags.NonPublic, 
        null, 
        new Type[] { typeof(Stream) }, 
        null); 

      // Construct MailWriter object with our FileStream 
      object _mailWriter = 
       _mailWriterContructor.Invoke(new object[] { _fileStream }); 

      // Get reflection info for Send() method on MailMessage 
      MethodInfo _sendMethod = 
       typeof(MailMessage).GetMethod(
        "Send", 
        BindingFlags.Instance | BindingFlags.NonPublic); 

      // Call method passing in MailWriter 
      _sendMethod.Invoke(
       Message, 
       BindingFlags.Instance | BindingFlags.NonPublic, 
       null, 
       new object[] { _mailWriter, true }, 
       null); 

      // Finally get reflection info for Close() method on our MailWriter 
      MethodInfo _closeMethod = 
       _mailWriter.GetType().GetMethod(
        "Close", 
        BindingFlags.Instance | BindingFlags.NonPublic); 

      // Call close method 
      _closeMethod.Invoke(
       _mailWriter, 
       BindingFlags.Instance | BindingFlags.NonPublic, 
       null, 
       new object[] { }, 
       null); 
     } 
    }

但保存的MSG文件無法打開，並在下面的錯誤： 「無法打開文件XYZ .msg文件文件可能不存在，您可能沒有權限打開它或者它可能被另一個程序打開....「

我的問題是：如何將System.Net.mail.MailMessage保存爲msg文件？

來源

2010-03-11 Gaby

Here瑞恩建議一個簡單而好的方法來做到這一點，而無需付出任何努力。

You can actually configure the SmtpClient to send emails to the file system instead of the network. You can do this programmatically using the following code:

SmtpClient client = new SmtpClient("mysmtphost"); 
client.DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory; 
client.PickupDirectoryLocation = @"C:\somedirectory"; 
client.Send(message);

你也可以在你的應用程序配置文件設置這是這樣的：

<configuration> 
    <system.net> 
     <mailSettings> 
      <smtp deliveryMethod="SpecifiedPickupDirectory"> 
       <specifiedPickupDirectory pickupDirectoryLocation="C:\somedirectory" /> 
      </smtp> 
     </mailSettings> 
    </system.net> 
</configuration>

來源

2010-03-11 09:07:17

是的，這是真的，但MailMessage保存爲.eml文件，我希望它被保存爲.msg文件 – Gaby

爲什麼downvoting這？這不是「答案」，但這是一個很好的建議...... –

加比，你有答案嗎？ – zipi