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

If it is a dedicated server, make sure you have postFix Mail installed (http://www.postfix.org/)

I faced this error today itself as the SMTP server was not available (i assumed it as there by default, but not)