PHP sendmail not sending

I have a form that submits to PHP self. This script runs and says it is successful, but I do not receive an email.

if(isset($_POST['name']) and isset($_POST['email']) and isset($_POST['phone'])) 

{
   //setup variables from input    
 $EMAIL = "anem@il.com";    
 $inEmail = $_POST['email'];    
 $subject = "Enquiry from ".$POST['name'];   
 $name = $_POST['name'];   

 //setup message    
 $message = "Enquiry from: ".$name."\nEmail: ".$inEmail."\nPhone: ".$phone."\n\nDeparture Date: ".$departureDate."\n\nreturnDate: ".$returnDate;

 $message = wordwrap($message, 70);   


 //email enquiry details to site owner    
 if (mail($EMAIL, $subject, $message))    
 {    
  echo "Enquiry sent!";    
 } else    
 {
  echo "fail!";    
 }
?>

The "Enquiry sent" message does appear.

I have postfix installed and I have also tried with s开发者_JS百科endmail installed. I have scanned local host using nmap and the smtp port is open.

Can anyone see any reason that the mail does not sent.

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Check your mail log (usually /var/log/maillog). It would show the message arriving from PHP, and any delivery attempts/rejection notices from the MX of the receiver.

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There a lot of possible reason that could explain why your email is sent and not received. Beside just setting up your SMTP server there are other things you need to do to make sure your email isn't just dropped before it reaches his destination.

You should take a look at this article that explains, what you should check :

http://www.codinghorror.com/blog/2010/04/so-youd-like-to-send-some-email-through-code.html

In summary you need to :

• Make sure the computer sending the email has a Reverse PTR record
• Configure DomainKeys Identified Mail in your DNS and code
• Set up a SenderID record in your DNS

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Assuming that sendmail is working on your system, and that PHP is configured to use it correctly, try adding -f in the additional parameters, like this...

mail($EMAIL, $subject, $message, '-fYOURVALIDEMAILADDRESS@something.com'

This sets the envelope with a proper from address. See more on the PHP site: http://www.php.net/manual/en/function.mail.php#92528