C # saves MailMessage as a local eml file (. net+smtpclient)

In the previous MailMessage save as a eml file (c#+smtpclient), we used the Reflection (Reflection) method to invoke the System.Net.Mail internal object Mailwriter implemented the MailMessage is saved as a eml file.

Through the last implementation, mainly to learn reflective reflection use of ideas, play a role in it, is

Today, occasionally saw the last code, and found a new continent, so that the work of saving the eml file, become unusually simple, go back to the last resolution of the place:

Last time, we to the above picture, too much emphasis on the mailwriter here, and ignore the other parts, I put the above picture, reproduce the following: