If you have done this through one SMPT server, you can do it through any other.
The only think to take care of is the server configuration settings.
Create a data class with all possible server configuration and persist it in a file. Create a UI to edit this configuration. For persistence, I would recommend Data Contract, start from here:
http://msdn.microsoft.com/en-us/library/ms733127.aspx[
^].
—SA