How to send an email from a BizTalk Expression shape (without using the SMTP Send Ports).
Note: There are two mail objects, the older one is System.Web.Mail and the newer one It also shows how to connect to an SMTP Host (Server) that requires userid/password authentication.

Note: The SMTPHost, from email, user/password were retrieved in the previous expression shape from the <AppSettings> of the BTNTSVC.exe.config file.

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