Sending mail through Hotmail from DotNet

I looked around for Sending Email hints and found quite a few, but I
don't see how to do it with a hotmail account or anything where I have
to logon. I'm willing to send them through the server, in fact I want
to send about a hundred copies of the same mail to a membership list.

What I don't see in the MailMessage or SmtpMail (static I guess)
object is any properties for an account and password. Any pointers on
where to look is greatly appreciated.
.