Mail Server Sending Spam

cideveloper

Registered
Apr 19, 2012
2
0
51
cPanel Access Level
Root Administrator
Hey Guys

I have a server running WHM 11.34.1 (build 7). this is my setup

suphp - on
SMTP Restrictions - enabled
Prevent “nobody” from sending mail - on

However using php mail() function still works
Also sending mail using pear with auth => false still works

How do I force my server to force authentication for sending out emails?