There are usually two different scenarios for using aspNetEmail, either you are using it from Visual Studio .NET or you aren’t. Below you will find some brief tutorials for using aspNetEmail from either of these scenarios.
When you are using aspNetEmail in Visual Studio .NET it is recommended you IMPORT the aspNetEmail.dll to the project. Once inside of the project, then set a reference to the IMPORTED copy, not the GAC copy. We recommend this, because in case aspNetEmail is uninstalled from the server, your application will still run off of the imported aspNetEmail.dll copy.
Please note that licensing requires a purchased license from aspNetEmail for each copy installed on a different server or computer. The option of a site license is also available, where aspNetEmail can be installed on an unlimited number of systems, at a single, physical location. Please visit www.aspNetEmail.com for the latest licensing terms.
Using aspNetEmail in VS.NET [C#]