Got this today when trying to get a real pricing or activation because the renewal fee is too expensive. So I tried contacting and replying to Rhett to only get this:

 

Your message wasn't delivered because the address support@invisionpower.com couldn't be found. Check for typos or unnecessary spaces and try again.

I'm sorry for any trouble, I just tested this now and it's working properly, I have also been communicating with you in the ticket, if this is still not working for you, please let us know in your ticket via our client area here https://www.invisionpower.com/clientarea/

Thank you 

Awesome! Thank you Rhett! Was a strange error!