Suggestions for adding image

After trial-error I found this to be working. I hope someone else find this useful as I was searching all over for a solution..

[function.php]

function add_email_logo($message) {
  // Add cid image to $message
  $logobase64 = "iVBORw0KGgoAAAANSUhEUgAAAEMA....etc.";

  $images = array (
    'images' => array (
      array (
              'type' => 'image/png',
              'name' => 'logo',
              'content' => $logobase64
      )
    )
  );

  $message = array_merge( $message, $images);

  return $message;
}
add_filter( 'mandrill_payload', 'add_email_logo' );

All I needed to do was to add the matching img source in my HTML email template stored in Mandrill using the same name = ‘logo’, cid = ‘logo’. Setting the width is recommended but not necessary.

<img src="cid:logo" height="XX" width="XX"/>

PS. I admit this isn’t the way to do it with larger images… but for small logo’s it works like a charm =)

Thx wpMandrill for a great plugin!