Email unable to send--urgent

Email unable to send--urgent

Urgent

Hi, we just started to use ZOHO mail but we are facing problem after two days
Kindly please help me to check...

these only some of the emails couldn't be delivery:
reservation@marveluxhotel.com
resvn@midahhotelkl.com
sheila@glorybeachresort.com.
resmgr@mwh.com.my


-----Original Message-----

From: mailer-daemon@mail.zoho.com [mailto:mailer-daemon@mail.zoho.com]

Sent: 17 November 2014 12:16

To: kt.reservation@karyatenaga.com

Subject: Undelivered Mail Returned to Sender

 

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.

 

emmelynn.kuan@mel.equatorial.com Error, ERROR_CODE :550, ERROR_CODE :5.7.1 <kt.reservation@karyatenaga.com>... Rejected, look at http://www.openspf.org/why.html?sender=kt.reservation@karyatenaga.com&ip=74.201.84.155&receiver=excalibur.hec.equatorial.com

reservations@mel.equatorial.com Error, ERROR_CODE :550, ERROR_CODE :5.7.1 <kt.reservation@karyatenaga.com>... Rejected, look at http://www.openspf.org/why.html?sender=kt.reservation@karyatenaga.com&ip=74.201.84.155&receiver=excalibur.hec.equatorial.com

 

 

 Received:from vincent (118.101.146.176 [118.101.146.176]) by mx.zohomail.com

                with SMTPS id 1416197759535177.43505165942167; Sun, 16 Nov 2014 20:15:59 -0800 (PST)  Message-ID:<002a01d0021d$27f92190$77eb64b0$@karyatenaga.com>

 Date:Mon, 17 Nov 2014 12:15:40 +0800

 From:"Wilson" <kt.reservation@karyatenaga.com>  To:"'HEM Reservations '" <reservations@mel.equatorial.com>  Cc:<emmelynn.kuan@mel.equatorial.com>

 Subject:Amendment DLH-141118-HD

 Content-Type:multipart/mixed;

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