Service::isEmailAvailable

static function isEmailAvailable()
{
	$dateCreate = Option::get("main", "~controller_date_create", "");

	return !self::isCloud()
		||
		Feature::isFeatureEnabled('sender_email')
		||
		(
			empty($dateCreate)
			||
			$dateCreate <= mktime(
				0, 0, 0,
				1, 9, 2019
			)
		);
}