There are many times when doing DotNetNuke development that your module needs to send emails.  You often have emails that need to go out to several different addresses i.e. an email to the user, one to the system administrator and maybe one to a fulfillment partner.  You frequently have different emails that get sent based on specific configuration settings or that change based on the role of the user.

When developing for DotNetNuke I often create a custom installation devoted to the module under development.  In the past I have not always had an easy method for configuring the SMTP server so that I could trap all the emails being sent out from the system.  I would try to set all the emails to one of my many email addresses and set my SMTP settings to use one of my production email servers.  The problem with my previous approach is that I often missed emails.  Unless all the emails are directed to my personal email accounts, I had no way to trap the emails on my dev box to make sure they were correct.  My previous method also did not make it easy to follow the entire email workflow.