The script is available for download from http://gallery.technet.microsoft.com/How-to-set-up-SMTP-Relay-385a72e0. You can also use Microsoft Script Browser for Windows PowerShell ISE to download the sample with one button click from within your scripting environment.
This script will help administrator to set up SMTP Relay.
This script is to help administrator to set up SMTP Relay without configuring step by step.
You can find more All-In-One Script Framework script samples at https://aka.ms/onescriptingallery