No attachement received, just jibberish at end of message.

Are webform2pdf and htmlmail just fundamentally incompatible? I am experiencing this issue after installing/configuring htmlmail today. It would be really useful to be able to use both together.

Edit: Here are the dblog errors.

Lines 640-657 (error points to "if ($email && $email['exclude_empty']) {"):

Notice: Undefined index: exclude_empty in webform_submission_render() (line 645 of /var/www/sites/examplesiteplatform/sites/all/modules/webform/includes/webform.submissions.inc).

  $components = $node->webform['components'];
  
  // Remove excluded components.
  if (is_array($excluded_components)) {
    foreach ($excluded_components as $cid) {
      unset($components[$cid]);
    }
    if ($email && $email['exclude_empty']) {
      foreach ($submission->data as $cid => $data) {
        // Caution. Grids store their data in an array index by question key.
        foreach ($data as $value) {
          if ($value != '') {
            // This component has a non-empty value. Continue the outer loop.
            continue 2;
          }
        }
        unset($components[$cid]);
      }
    }
  }

Notice: Undefined offset: 0 in mimemail_html_body() (line 383 of /var/www/sites/examplesiteplatform/sites/all/modules/mimemail/mimemail.inc).

Lines 373-423 (error points to "$plaintext = drupal_html_to_text($matches[0]);"):

 * The first mime part is a multipart/alternative containing mime-encoded sub-parts for
 * HTML and plaintext. Each subsequent part is the required image or attachment.
 */
function mimemail_html_body($body, $subject, $plain = FALSE, $plaintext = NULL, $attachments = array()) {
  if (empty($plaintext)) {
    // @todo Remove once filter_xss() can handle direct descendant selectors in inline CSS.
    // @see http://drupal.org/node/1116930
    // @see http://drupal.org/node/370903
    // Pull out the message body.
    preg_match('|<body.*?</body>|mis', $body, $matches);
    $plaintext = drupal_html_to_text($matches[0]);
  }
  if ($plain) {
    // Plain mail without attachment.
    if (empty($attachments)) {
      $content_type = 'text/plain';
      return array(
        'body' => $plaintext,
        'headers' => array('Content-Type' => 'text/plain; charset=utf-8'),
      );
    }
    // Plain mail with attachement.
    else {
      $content_type = 'multipart/mixed';
      $parts = array(array(
      'content' => $plaintext,
        'Content-Type' => 'text/plain; charset=utf-8',
      ));
    }
  }
  else {
    $content_type = 'multipart/mixed';

    $plaintext_part = array('Content-Type' => 'text/plain; charset=utf-8', 'content' => $plaintext);

    // Expand all local links.
    $pattern = '/(<a[^>]+href=")([^"]*)/mi';
    $body = preg_replace_callback($pattern, '_mimemail_expand_links', $body);

    $mime_parts = mimemail_extract_files($body);

    $content = array($plaintext_part, array_shift($mime_parts));
    $content = mimemail_multipart_body($content, 'multipart/alternative', TRUE);
    $parts = array(array('Content-Type' => $content['headers']['Content-Type'], 'content' => $content['body']));

    if ($mime_parts) {
      $parts = array_merge($parts, $mime_parts);
      $content = mimemail_multipart_body($parts, 'multipart/related; type="multipart/alternative"', TRUE);
      $parts = array(array('Content-Type' => $content['headers']['Content-Type'], 'content' => $content['body']));
    }
  }