I have written up a PHP script that sends form inputs to an email. However, the free webhost that I've tried could only send SMTP to a domain that you owned. I don't have one yet, and can only use subdomains, and can't send to emails like gmail.com

Do you know of any free webhosts that let you send to gmail? It's just to test the script and see whether it works, and therefore it doesn't matter if there are ads or other stuff.