php mail() function, headers issue, can not send an email - php

Question

I know this is really common issue, but I have problem with headers. This function send email only when I send mail with $header2. In other cases I get fail echo. Does not working with $headers.
I don't know why it is happening, also it doesn't work with php.net default headers below:
$headers = 'From: webmaster#example.com' . "\r\n" .
'Reply-To: webmaster#example.com' . "\r\n" .
'X-Mailer: PHP/' . phpversion();
Complete function:
function sendMail() {
$to = "mymail#gmail.com";
$subject = "This is subject";
$message = "<b>This is HTML message.</b>";
$message .= "<h1>This is headline.</h1>";
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
// Additional headers
$headers .= 'To: Mary <mary#example.com>, Kelly <kelly#example.com>' . "\r\n";
$headers .= 'From: Birthday Reminder <birthday#example.com>' . "\r\n";
$headers .= 'Cc: birthdayarchive#example.com' . "\r\n";
$headers .= 'Bcc: birthdaycheck#example.com' . "\r\n";
$header2 = "From:abc#somedomain.com \r\n";
$header2 = "Cc:afgh#somedomain.com \r\n";
$header2 .= "MIME-Version: 1.0\r\n";
$header2 .= "Content-type: text/html\r\n";
$retval = mail ($to, $subject, $message, $headers);
if( $retval == true ) {
echo "Message sent successfully...";
}else {
echo "Message could not be sent...";
}
}

Answer 1

Firstly, just get rid of this entire code block since there is no reference to your usage of the $headers2 variable. Do go over my answer in its entirety.
$header2 = "From:abc#somedomain.com \r\n";
$header2 = "Cc:afgh#somedomain.com \r\n";
// ^ BROKEN concatenate
$header2 .= "MIME-Version: 1.0\r\n";
$header2 .= "Content-type: text/html\r\n";
PHP is going over your entire code, regardless. And it contains a broken concatenate.
However, it's unclear as to what you want to do here and have obviously taken examples from the manual on mail() http://php.net/manual/en/function.mail.php then just blindly adding stuff in there.
Sidenote: The To: is already pre-determined as to where it should be sent to, so the use of To: in the headers isn't required.
function sendMail() {
$to = "mymail#gmail.com";
$subject = "This is subject";
$message = "<b>This is HTML message.</b>";
$message .= "<h1>This is headline.</h1>";
$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
// Additional headers
$headers .= "From:abc#somedomain.com \r\n";
$headers .= "Cc:afgh#somedomain.com \r\n";
$retval = mail ($to, $subject, $message, $headers);
if( $retval == true ) {
echo "Message sent successfully...";
}else {
echo "Message could not be sent...";
}
}
and if the goal here is to send 2 seperate mails, then you will need to use 2 seperate mail() functions and 2 different header variables.
Something to which you can consult, as per an answer I once gave for another question:
https://stackoverflow.com/a/18382062/1415724
Add error reporting to the top of your file(s) which will help find errors.
<?php
error_reporting(E_ALL);
ini_set('display_errors', 1);
// Then the rest of your code
Sidenote: Displaying errors should only be done in staging, and never production.

Answer 2

Please stop using the php mail() function! My advice will be to use PHPMailer and sending the emails via SMTP.
Here is a small code snippet using PHPmailer:
<?php
require 'PHPMailerAutoload.php';
$mail = new PHPMailer;
//$mail->SMTPDebug = 3; // Enable verbose debug output
$mail->isSMTP(); // Set mailer to use SMTP
$mail->Host = 'smtpserver.com'; // Specify main SMTP server. If you dont have one us GMAL or mandrill
$mail->SMTPAuth = true; // Enable SMTP authentication
$mail->Username = 'user#youremail.com'; // SMTP username
$mail->Password = 'pass'; // SMTP password
$mail->SMTPSecure = 'tls'; // Enable TLS encryption, `ssl` also accepted
$mail->Port = 587; // TCP port to connect to
$mail->setFrom('from#youremail.com', 'Mailer');
$mail->addAddress('joe#youremail.net', 'Joe User'); // Add a recipient
$mail->addAddress('ellen#youremail.com'); // Name is optional
$mail->addReplyTo('info#youremail.com', 'Information');
$mail->addCC('cc#youremail.com');
$mail->addBCC('bcc#youremail.com');
$mail->addAttachment('/var/tmp/file.tar.gz'); // Add attachments
$mail->addAttachment('/tmp/image.jpg', 'new.jpg'); // Optional name
$mail->isHTML(true); // Set email format to HTML
$mail->Subject = 'Here is the subject';
$mail->Body = 'This is the HTML message body <b>in bold!</b>';
$mail->AltBody = 'This is the body in plain text for non-HTML mail clients';
if(!$mail->send()) {
echo 'Message could not be sent.';
echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
echo 'Message has been sent';
}