XF 1.4 Email system isn't working


Active member
I've had to turn off the email validation system because no one is receiving emails from my site. I've had someone try to reset their password and hasn't been able too either. I can send a mass email via the ACP just fine, but when it comes to the automatic email it isn't working. How do I go about getting this to work? It works with my other forum that's on the same hosting service as this one, just not this website in particular.