I updated my store from 1.9.0.1 to 1.9.2.4 and the order confirmation mail isn't working. I tried it manually by sending invoice through admin and it did work but it's not working on automatically. I even setup the cron but however, I think the cron is not working properly because the URL www.mysite.com/cron.php redirects me to 404 page not found.
And yes, I am testing all this on my test domain, my production website does send all the emails which is currently on 1.9.0.1 Any solutions?