delivery failure of incoming email

delivery failure of incoming email

One of our major clients just informed us that their email to us was rejected. We have received their emails before and I need to know that this is not happening to other clients and will not continue for them. 

Thank you for the help. Below is the information they sent us.

 

Delivery has failed to these recipients or groups:

A problem occurred during the delivery of this message to this e-mail address. Try sending this message again. If the problem continues, please contact your helpdesk.

The following organization rejected your message: [204.141.32.121].






Diagnostic information for administrators:

Generating server: mail.miskellys.com

len

[204.141.32.121] #<[204.141.32.121] #5.0.0 smtp; 5.1.0 - Unknown address error 541-'5.4.1 Mail rejected by destination domain' (delivery attempts: 0)> #SMTP#

Original message headers:

X-IronPort-AV: E=Sophos;i="5.31,606,1473138000"; 

   d="scan'208,217";a="3682633"

Received: from mskexch.miskelly.com (HELO mail.miskellys.com)

 ([128.222.1.170])  by mail.miskellys.com with ESMTP; 07 Nov 2016 11:25:46

 -0600

Received: from MSKEXCH.Miskelly.com ([fe80::397c:5410:122e:9564]) by

 MSKEXCH.Miskelly.com ([fe80::397c:5410:122e:9564%10]) with mapi id

 14.03.0174.001; Mon, 7 Nov 2016 11:25:46 -0600

From: Erica S

To: 

Subject: FW: Undeliverable: Circular

Thread-Topic: Undeliverable: Circular

Thread-Index: AQHSORv5Ngy8T0oH/EOeifLzV8w2KQ==

Date: Mon, 7 Nov 2016 17:25:46 +0000

Message-ID: <66CB8E35-67E4-4802-B478-E505DE800489@miskellys.com>

Accept-Language: en-US

Content-Language: en-US

X-MS-Has-Attach: yes

X-MS-TNEF-Correlator:

user-agent: Microsoft-MacOutlook/f.1b.0.161010

x-originating-ip: [172.11.114.237]

Content-Type: text/plain

MIME-Version: 1.0