PS - When I found a tool for DMARC lookups and that website allows the option to click on a green "Find Problems" button. When the analysis is over, it says mbox.freehostia.com is on blacklisted by UCEPROTECTL1.
See it in action here:
http://mxtoolbox.com/domain/anthonytonini.com/
Could that be the the problem? Keep in mind, I cannot send SMTP email with my hosting plan at Freehostia.
Thanks!