Strange behavior of PHP form

[Tali]

Hello,

I have reply php form on my website - it is 1 php form with many pages send to it.
Sometimes it works fine, but sometimes no. For the last 3 weeks there were no reply emails at all.
Here is the form:

 <?php
	   session_start();

if(isset($_POST['submit'])) {

$msg = "";
//$flag="OK";

if(preg_match("/^[a-zA-Z -]+$/", $_POST["realname"]) == 0) {
$msg = $msg. "<font color='red'>Please enter your name.</font><br/>";
//$flag = "NOTOK";
}

if(preg_match("/^[a-zA-Z]\w+(\.\w+)*\@\w+(\.[0-9a-zA-Z]+)*\.[a-zA-Z]{2,4}$/", $_POST["email"]) == 0) {
$msg = $msg. "<font color='red'>Please enter a valid email address.</font><br/>";
//$flag = "NOTOK";
}

if(preg_match("/^[a-zA-Z0-9 -]+$/", $_POST["text"]) == 0) {
$msg = $msg. "<font color='red'>Please enter a message.</font><br/>";
//$flag = "NOTOK";
}


if($msg == '') {
  if(isset($_POST["email"]))
file_put_contents("emails.txt" , htmlspecialchars($_POST["email"]) . "\n\r" , FILE_APPEND  ); 
if(empty($_SESSION["recipient"]))
die("recipient is empty"); 

$emailadd = $_SESSION["recipient"]; 

$subject = 'Form Submission from Business Exchange';        // Subject of email sent to you.
$emailcompany = $_POST['company'];    //Company name it's coming from
$realname = $_POST['realname'];
$email = $_POST['email'];
$phone = $_POST['phone'];
$text = $_POST['text'];
$emailother = 'bcc:[e-mail],[e-mail]';

$title = "Results from form $emailcompany:\n\n";   

$body= "$title\n From:$realname\n Email:$email\n Phone: $phone\n Message: $text";

echo  "<font color='red'>Your email has been submitted successfully</font>";
mail($emailadd, $subject, $body, 'From: '.$emailadd.'');
mail($emailother, $subject, $body, 'From: '.$emailother.'');

} 
else {

echo $msg;
}
}

?>

Thank you in advance

[Kudose]

What do you mean by sometimes it works and other times it doesn't?

Are you not getting the emails? Do you get an error message?

You also shouldn't tell the user the email was sent unless it actually was ...

if(mail($emailadd, $subject, $body, 'From: '.$emailadd.'') && mail($emailother, $subject, $body, 'From: '.$emailother.''))
  echo  "<font color='red'>Your email has been submitted successfully</font>";

[bradgrafelman]

You should also search the board for some additional e-mail headers you can add (e.g. MIME-Version, Content-Type, Reply-to, etc. etc.) to make the message seem more legit.

In addition, you should never use a user-supplied e-mail address for the From header; this header should always be an e-mail address on your domain.

The above two suggestions would help your chances of the message getting through spam filters (which sounds like what's causing your problem, to me).

[druidmatrix]

You need to check for success or failure for the mail function:
m

ail($emailadd, $subject, $body, 'From: '.$emailadd.''); 
mail($emailother, $subject, $body, 'From: '.$emailother.''); 

If you can catch a failure within php, then you need to investigate that further, otherwise, as suggested above, there are many other things you need to look into.

Is sendmail running on the webserver, and if so, are there any messages in the sendmail logs?

Have you checked the mailq on the webserver to see if there are messages stuck in the queue?

Have you checked the Apache user's mailbox to see if there are bounced messages, which could help you further diagnose the problem?

Have you tried send email manually from the webserver to ensure that there are no network issues such as firewalling, etc preventing you from sending email?

[Tali]

Thanks Kudose,
I changed it the way u suggested.

Tali

[Tali]

Thanks for your reply, bradgrafelman
I can't put in "from" header email address on my domain - i have many pages with many email addresses which use this php form to reply.

Tali

[Tali]

Hi druidmatrix,
thanks for the reply - could you explain a bit in more details, how can I check sendmail running on the webserver,mailq on the webserver, Apache user's mailbox, to send email manually from the webserver? im not sure i know how to check it .
I think now - no emails are going through

Thanks
Tali

[Tali]

I deleted "From" header from mail() function .
Could it fix the problem?