Send emails with dynamic contents through asp.net 2.0.

These two namespaces plays a major role in sending emails with dynamic content :

System.Web.Mail Namespace

The System.Web.Mail namespace contains classes that enable you to construct and send messages using the CDOSYS (Collaboration Data Objects for Windows 2000) message component. The mail message is delivered either through the SMTP mail service built into Microsoft Windows 2000 or through an arbitrary SMTP server. The classes in this namespace can be used from ASP.NET or from any managed application.

System.IO Namespace
The System.IO namespace contains types that allow reading and writing to files and data streams, and types that provide basic file and directory support.