Question

I’m trying to send an HTML message while using SMTP authentication to Gmail in PHP. Here is the script that I am using:

require_once "Mail.php";
require_once 'Mail/mime.php';

$from = "Some Name <[e-mail]>";
$to = "Other Name <[e-mail]>";
$subject = "This is a test";
$crlf = "\n";

$host = "ssl://smtp.gmail.com";
$port = "465";
$username = "[e-mail]";
$password = "mypass";

$headers = array ('From' => $from,
                  'Return-Path' => $from,
                  'Subject' => $subject);

$smtp = Mail::factory('smtp',
  array ('host' => $host,
    'port' => $port,
    'auth' => true,
    'username' => $username,
    'password' => $password));

$mime = new Mail_mime($crlf);
$mime->setTXTBody("This is a test email message");
$mime->setHTMLBody($body);
$body = $mime->get();
$headers = $mime->headers($headers);

$mail = $smtp->send($to, $headers, $body);

if (PEAR::isError($mail)) {
  echo("<p>" . $mail->getMessage() . "</p>");
} else {
  echo("<p>Message successfully sent!</p>");
}

Note: the $body is an HTML table with images and other info.

When I execute the script it fails with the following error:

Failed to set sender: Some name [SMTP: Invalid response code
received from server (code: 555, response: 5.5.2 Syntax error.
c6sm20541406obd.22)]

Here is what I’ve tried to see what is going wrong:
1. Using the same script using ‘Mail’ instead of ‘smtp’ i.e.

$smtp = Mail::factory('Mail');

This works just fine.
2. Using the same script w/o the mime.php, this also works but doesn’t allow one to send an HTML email.

Does anybody know how I can combine the two so that I’m still using SMTP authentication and send an HTML message?

EDIT:
Here is the dump of $mime->headers():

[MIME-Version] => 1.0
[From] => Some Name
[Return-Path] => Some Name
[Subject] => This is a test
[Content-Type] => multipart/alternative;
boundary="=_8662996a1f586248545d9f01f48e916d"

Answer 1

Figured it out myself finally.

Thanks to Abid Hussain for providing the link to the example here: http://tonyvirelli.com/slider/php-html-email-using-smtp/

Solution:

1. Remove the 'Return-Path' => $from from the headers array.
2. Add To => $to to the headers array(without this, the to header of the received email is Undisclosed recipients)