The integration that I had with my ecommerce DNN module (ActivePurchase) broke when I moved the site to PowerDNN. I have been fighting with this for a couple weeks now.

Here's what happened:
The part that sends the serial number did not work anymore, because the SMTP server was not on the same network. Changing the settings did not work at first. I went googling for sending emails from DNN. I got some good hits for sending email from inside DNN modules.

The API for this is fairly simple (relatively). You first make a reference to DotNetNuke.Services.Mail. Then you make a call to the Mail.SendMail() method, with the appropriate parameters. There are 5 overloads. The call from a module would look like this:

DotNetNuke.Services.Mail.Mail.SendMail(FromAddress, SendTo, "", Subject, Body, "", "", "", "", "", "")

Well, that didn't work. So now I was scratching my head.

I am using a special type of integration called a custom step, which is just an assembly in the bin directory for the DotNetNuke install. I had to go and dig into the event log that DNN keeps. There were several exceptions there. The message was that the SMTP connection needed to be authenticated. WTF??

Custom DNN modules use the SMTP settings that the administrator has setup. However, the custom step does not get treated as a module. So I had to do this:

DotNetNuke.Services.Mail.Mail.SendMail(FromAddress, SendTo, "", Subject, Body, "", "", "", "", UserName, Password)

Once I did that, the custom step started sending emails like before. YES!

Now that this is fixed, I can get my undivided attention back to PainlessSVN and SVN Backup Widget stuff.