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Exchange 2013 new set up: Cannot send mails to hotmail and other domain

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All Forums >> [Microsoft Exchange 2013] >> Secure Messaging >> Exchange 2013 new set up: Cannot send mails to hotmail and other domain Page: [1]
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Exchange 2013 new set up: Cannot send mails to hotmail ... - 17.Feb.2014 4:15:37 AM   
jheycie

 

Posts: 4
Joined: 3.Sep.2012
Status: offline
Hi All,

Need your expertise.

We set up a new exchange server 2013 on Windows 2012 server but is having some problem.

-users can send and receive mails from internal clients
-users can receive mails from external clients but cannot send
-rDNS checked and DNS settings done
-users can now send to some of external clients but not all
-can send to yahoo, gmail but not hotmail and also other external clients


Error message from Hotmail:

COL0-MC3-F51.Col0.hotmail.com rejected your message to the following email addresses:
user (user@hotmail.com)
COL0-MC3-F51.Col0.hotmail.com gave this error:
OU-002 (COL0-MC3-F51) Unfortunately, messages from 220.255.57.2 weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors.
A problem occurred while delivering this message to this email address. Try sending this message again. If the problem continues, please contact your helpdesk.

Error message from one client;

From: Microsoft Outlook
Sent: Monday, February 17, 2014 1:24 PM
To:user@user.domain.com
Subject: Undeliverable: REVISITING THE SUBJECT OF BLOOD MOONS

xlspam03.mdcs.at rejected your message to the following email addresses:

user@user.domain.com

xlspam03.mdcs.at gave this error:
#5.7.1 Your access to submit messages to this e-mail system has been rejected.

A problem occurred while delivering this message to this email address. Try sending this message again. If the problem continues, please contact your helpdesk.

Thanks in advance for your help.
Post #: 1

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