I use CSmtpClientMtm to send an email with attachment by following code.
It was successful on creating the file on the directory of mail outbox
like c:\system\Mail\00001001_S\b\ and sending the mail.
However, I could not see the attchment filename inside the mail
and the mail body message became unreadable when I received it.
What's wrong? some setting needed to make the attachment visible?
But there is no the interface on CSmtpClientMtm.