Send an email

$to = 'user@domain.tld';
 
$body = 'Dear,
 
This is a message
 
with multilines
 
best regards';
 
$module = 'my_snippet';
$key = 'notify';
$language = language_default();
$params = array();
$from = variable_get('site_mail', '');
$send = FALSE;
$message = drupal_mail($module, $key, $to, $language, $params, $from, $send);
 
$message['subject'] = "This is a subject";
$message['body'] = explode("\n", $body);
 
$system = drupal_mail_system($module, $key);
 
$message = $system->format($message);
 
$message['result'] = $system->mail($message);