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Message ID: 19b03c1913979d11
Thread ID: 19b03c1913979d11

<!-- 
====== HOW TO USE ======

1. BASIC EMAIL:
   - Just change the values in $config array at the top
   - Run the script

2. REPLY TO EMAIL:
   - Set 'in_reply_to' to the original Message-ID (like: <CAMaKxS6twebofOr2x1GfRSavSQcg03FEoBFdbv6M5aQUo7c=Og@mail.gmail.com>)
   - Set 'thread_id' if you know it
   - Change subject to start with "Re: "

3. WITH ATTACHMENTS:
   - Add files to 'attachments' array like:
     [
         'path' => '/full/path/to/file.pdf',
         'name' => 'document.pdf', 
         'type' => 'application/pdf'
     ]

4. COMMON FILE TYPES:
   - PDF: 'application/pdf'
   - Word: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
   - Excel: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' 
   - Image: 'image/jpeg', 'image/png'
   - Text: 'text/plain'

====== EXAMPLES ======

// Reply Example:
$config['subject'] = 'Re: Hey';
$config['in_reply_to'] = '<CAMaKxS6twebofOr2x1GfRSavSQcg03FEoBFdbv6M5aQUo7c=Og@mail.gmail.com>';
$config['body_html'] = '<p>Hi! I am doing great, thanks for asking!</p>';

// Attachment Example:
$config['attachments'] = [
    [
        'path' => __DIR__ . '/document.pdf',
        'name' => 'important-document.pdf',
        'type' => 'application/pdf'
    ]
];
-->