civicrm send to a friend sparkpost fix

myext.php

<?php

/**
 * Implements hook_civicrm_alterMailParams().
 *
 * Intercepts outgoing emails.
 */
function myext_civicrm_alterMailParams(&$params) {
  // redmine:20627 Quickfix for PCP "send to a friend" enforce the 'from' email.
  if ($params['valueName'] == 'friend') {
    if (preg_match('/<([^>]+)>/', $params['from'], $matches)) {
      $orig_from = $matches[1];
      $params['from'] = str_replace($orig_from, 'no-reply@example.org', $params['from']);
    }
  }
}

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