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Your message wasn't delivered because of security policies

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Your message wasn't delivered because of security policies - 11.Nov.2009 7:21:04 AM   
Spacecowboy2005

 

Posts: 14
Joined: 22.Oct.2009
Status: offline
Hi having appeard to have solved a recent problem involving SMTP queues,
Exchange has developed a new problem.

We're running Exchange 2003 on a Windows Server 2003 box.
All mail that comes in to valid users is forwarded to another address on another domain via external contacts created in AD.

The recipent server is Exchange 2007

For example:

me@123.com forwards to me@123-abc.com





When a message is sent to me@123.com the sender recives the following NDR:

User Name
Your message wasn't delivered because of security policies. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator.

Diagnostic information for administrators:
 
Generating server: mail.123.com
 
me@123-abc.com
#< #5.7.1> #SMTP#
Post #: 1
RE: Your message wasn't delivered because of security p... - 11.Nov.2009 3:08:43 PM   
jveldh

 

Posts: 2335
Joined: 12.Apr.2008
From: The Netherlands
Status: offline
Hi,

It looks like you server isn't allowing the other server to relay via your server. So try to add the ip-address of it and try again.
Or setup authentication on the sending server so that is authenticates before sending mail.

_____________________________

Best regards,

Johan Veldhuis

Visit my Exchange blog

(in reply to Spacecowboy2005)
Post #: 2

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