Mail delivery error that I wasn't getting 3 weeks ago

Can you tell me why all of a sudden I am unable to send email to this recipient?   This is the error message I get.

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

frank@jacquescatering.com
No Such User Here

------ This is a copy of the message, including all the headers. ------

Return-path: <mark@right-coast-marketing.com>
Received: from [72.5.230.103] (port=52025 helo=sender1.zohomail.com)
    by vario.websitewelcome.com with esmtpa (Exim 4.69)
    (envelope-from <mark@right-coast-marketing.com>)
    id 1QgidA-000549-7e
    for frank@jacquescatering.com; Tue, 12 Jul 2011 14:28:28 -0500
Date: Tue, 12 Jul 2011 15:28:27 -0400
From: Mark Elia <mark@right-coast-marketing.com>
Reply-To: mark@right-coast-marketing.com
To: "frank" <frank@jacquescatering.com>
Message-ID: <1311fd265ee.-458434838525617024.-1339242231001734486@right-coast-marketing.com>
Subject: Website Mockup
MIME-Version: 1.0
Content-Type: multipart/alternative;
    boundary="----=_Part_27880_2130775887.1310498907628"
X-Priority: MEDIUM
User-Agent: Zoho Mail
X-Mailer: Zoho Mail
Status: RO

Mark