Hi,
I am building an application where i am obligated to create a MailMessage (System.Net.mail.MailMessage) and save it on the disk as .msg extention not .eml
Below is the method i'm using to save a MailMessage as .msg file:
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);
}
}
But the saved msg file doesn't open and below is the error: "Cannot open file xyz.msg.The file file may not exist, you may not have permission to open it or it may be open by another program...."
My question is: How to save System.Net.mail.MailMessage as msg file?