PHP mail() function does not work on web-host

Question

I\'m having issues sending emails using the php mail() function. I know the php script I have works because I have an identical copy of it on another web-hosting company and it

Answer 1

Write a really simple script, like

Execute it, and make sure the mail is not caught by your spam filter (if you can afford it, set up your own domain/DNS server, netcat -l -p 25 is sufficient).

If that doesn't work, contact the support of your web hoster. Do they have an FAQ or any other documentation?