At this time our system is not created to be a relay server. However what exactly are you looking to accomplish through this type of server? Having any details will allow us to help point you in the right direction or even submit feature requests to our Product Team.
Thank you for following up with these details! While this feature is not available in our system, I have tracked this feature request in your account. Please let us know if there is anything else we can assist with in the meantime.