What server and credentials do I need to list in order to send an email from ASP.net? Or do I need to enter one when sending an email from Winhost via asp.net
You'll be using your mail server assigned to your account which should be mail.[domain name].com. But you'll need to make sure that you code it so that it passes smtp authentication. Try looking at these kb articles. http://support.Winhost.com/KB/a485/which-smtp-server-should-i-use-for-aspaspnet-mail-component.aspx http://support.Winhost.com/KB/a650/how-to-send-email-in-aspnet.aspx
I figured out that server and credentials, and looked under mail to see that a postmaster account was created, but I couldn't find the password that it was setup under.
Cool, glad you got it working. For anyone else who is wondering, by default the postmaster password is the same as the site password.