{__("Hi")},

{$user->_data['user_fullname']} {__("has invited you to join")} {__($system['system_title'])}.

{__("Click the link below to create your free account")}:
{$system['system_url']}/signup?ref={$user->_data['user_name']}&invitation_code={$code}

---
{__($system['system_title'])} — {$system['system_url']}
