SMTPit Pro server plugin - Cannot send via IWP

[TaraSilverwind]

Hello,

 

I'm having some trouble trying to get an email to send through IWP from one of our databases.  I have the SMTPit Pro server edition installed on our FileMaker 11 server, and I also have the SMPTit Pro client version installed on my computer for FileMaker 11 Pro Advanced.  I set up a very basic send script that matches the formatting of the documentation found on CNS's website for setting up an email to send through IWP.  I'm able to use this script just fine in my client version of FileMaker, but it refuses to send via IWP.  

 

I've attached a screenshot of my script (important info redacted) and a screenshot of the results when I try to send through IWP.  I've double and triple checked all of the host and authentication information, so that shouldn't be the issue.

 

 

 

What am I doing wrong here?