I also posted the question here:
This plugin does not work on my Windows 2003 (IIS) Server. I’m running WordPress 2.1 and all other email-related functions (like comment notification) work just fine on the server.
Quite simply, it just doesn't send emails.
Any suggestions? Has anyone gotten this plugin to work successfully on IIS? Or is there a similar plugin that will work on Windows servers?
Thanks in advance.