I do not receive mails from the web page

i hawe free acount .
My demo page is http://trecias.ga/.
I check if I can receive mail from this page http://trecias.ga/. When I try, I noticed that I am not receiving mails from page to the specified mail.
Question: I am not receiving emails because I use the free acount or the problem somewhere else?

Please check the FAQ first next time: https://infinityfree.net/support/php-mail