Nah, for just email, you can use the .NET classes. However, I think that email factory was designed for .NET 1.0/1.1, which I don't think had near as many things in the System.Net namespace. The mail implementation is much more robust in .NET 2.0.But, there is certainly a market for networking related .NET tools. You might also try http://www.nsoftware.com/. They have the IPWorks suite, which contains lots of stuff for HTTP servers, socket communications, and tons of other stuff.