I'm trying to send a simple email in PHP. I've stripped it back to the basics and it's still failing. I used to do this fine?
Any ideas?

mail('myemail@gmail.com', "Subject Line","Body") or die ('Error Sending Email.');

I keep getting the error.

    Add a "From" header with a valid email address on the web server?

      Done that, here's my original function

      function sendEmail($i_email, $i_subject, $i_BookingCode, $i_CustomerName){

    $to = $i_email;
    $subject = $i_subject;
    
    $headers = "From: bookings@mydomain.com\r\n";
    $headers .= "Reply-To: bookings@mydomain.com\r\n";
    $headers .= "MIME-Version: 1.0\r\n";
    $headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";

    $message = '<html><body>';
    $message .= '<img style="width: 100%;" src="images/header.png">';
    $message .= '<table rules="all" style="border-color: #666;" cellpadding="10">';
    $message .= "<tr style='background: #eee;'><td><strong>Booking Code:</strong> </td><td>" . $i_BookingCode. "</td></tr>";
    $message .= "<tr><td><strong>Customer Name:</strong> </td><td>" . $i_CustomerName . "</td></tr>";
    $message .= "</table>";
    $message .= "</body></html>";

    mail($to, $subject, '$message', $headers) or die ('Error Sending Email.'); 
    
}

        Wondering if there's something in the .ini file I need to enable?

          No guarantees, but maybe try:

          ... or die("<pre>Error Sending Email:\n".print_r(error_get_last(), 1)."</pre>");

            Nothing glaringly wrong with what's posted (as NogDog suggests, there may be more information available about the error). Once the mail is delivered there will be a new problem because the body will simply be '$message'. Also, it might be tidier to pass an array of headers rather than building up a string (assuming you're using a version of PHP that's less than three years old).

              If it's possible to switch to PHPMailer, I'd highly recommend it - it's easier to use and debug than php's native mail() function.

              nzkiwi80 But I can't see where the output is coming from

              Maybe this line is responsible?

                  $mail->SMTPDebug = SMTP::DEBUG_SERVER;                      // Enable verbose debug output

              I haven't read the documentation, though; I'm just guessing: I wouldn't expect a readme example to be the final word on how to use the package.

                  Yeah, it's the debug. There are a few levels of debug as well as none at all - obviously you'll want to turn it off on production. However, if you run into trouble it's full of actual useful information.

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