PHP mail() function not delivering mail

[arbind004]

I have a slight problem. I am using a working script (works on my testing account - shared server and vps) to send a mail through PHP using the mail() function.

I just got a dedicated server, and I haven't been able to get the function to work.
::SERVER DETAILES::
centos 5.8
RAM: 24GB
FFMPEG install
WHM install
----------------

There is clearly something that I am missing.
any models need to install for work mail funtion ?
plzzz help

[something else]

what error message does it give you when you turn php error messages on?

[GumSlone]

in cpanel whm, Main >> Server Configuration >> Tweak Settings > Mail,
Prevent “nobody” from sending mail [?] should be off,

check this setting

[ozziemale31]

re

watch these tutorials
How to Setup & Configure Postfix Email - VPS BIBLE Pt 10 - YouTube

[arbind004]

problem solved we have install mailx on my server now email is sending.

yum install mailx

thank you!! all

Added after 4 minutes:

now i am facing one new problem my all sended mail go to spam folder .