CiviCRM Community Forums (archive)

You can retrieve the *domain* email via API - that's the email configured at this page.

params = array(
  'version' => 3,
  'sequential' => 1,
);
$result = civicrm_api('Domain', 'get', $params);
print_r($result['values'][0]['from_email']);

I think you're asking how to get the default From email, as configured at this settings page, and I'm not sure off the top of my head how you get that information.