Migrating a Web Server to IIS 5.0

Electronic Mail Delivery

Many CGI applications, such as sendmail, format RFC-822 e-mail messages for delivery to a mail server. You can easily reproduce this functionality by using ASP. Or you can make minor modifications to your sendmail script, and then run a comparable Win32 mail application, such as Blat.exe.

See the following:

Using ASP to Send E-mail Messages
Migrating a UNIX Mail Script