PHP mail() issue - php

Question

I have a php page that includes an inquiry form that refers to itself as the form action.
Once completed the form writes to a database within a try-catch construct. I want to send an email to the administrator to say that someone has added themselves to the database.
All of the code works until:
if(mail($to, $subject, $message, $headers, '-f' . $from))
{ #And finally send them a thanks
header('Location: thanks.html.php');
exit();
} else {
echo 'Email did not send';
exit();
}
The code above this block all works because I get a write into the database, and the 'if' test passes because the redirect to the thanks page also works! What have I missed?

Answer 1

Seems like you are trying to make use of additional parameters.
Exerpt from PHP Manual
The additional_parameters parameter can be used to pass an additional
parameter to the program configured to use when sending mail using the
sendmail_path.
<?php
mail('nobody#example.com', 'the subject', 'the message', null, '-fwebmaster#example.com');
?>
Route : 2
Try something like this.
Your $from is contained in the $headers variable itself , so you don't have to specify.
<?php
$to = 'nobody#example.com';
$subject = 'the subject';
$message = 'hello';
$headers = 'From: webmaster#example.com' . "\r\n" .
'Reply-To: webmaster#example.com' . "\r\n" .
'X-Mailer: PHP/' . phpversion();
if(mail($to, $subject, $message, $headers))
{ #And finally send them a thanks
header('Location: thanks.html.php');
exit();
} else {
echo 'Email did not send';
exit();
}
?>

Answer 2

AT last...The answer. Nothing wrong with the code! I was falling over the web hosts anti spam filter in mail. Because I was testing the script with my own email address, it refused to send the mail assuming it was spam! As soon as I put in a completely new email address it sent the email!
Thanks to everyone that offered help!