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NDR Exchange 2013

Posted on 2014-11-24
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Last Modified: 2014-12-03
Hi All,
By default do I need to configure NDR within Exchange 2013?
When I use send connector "mx record associated with recipient domain" NDR's work fine but when I use "Route mail through smart hosts" using the hosted email security or ISP IP NDRs don't work - seems like exchange accepts the email..or is there a delay of a few hours??
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Question by:jag b
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Expert Comment

by:suriyaehnop
ID: 40462012
It was enable by default. The default accepted domain, "allow non delivery report" was enabled.

Please have a read of NDR based on below link.

http://technet.microsoft.com/en-us/library/bb232118%28v=exchg.150%29.aspx
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Author Comment

by:jag b
ID: 40462034
im more concerned about the external users - shouldn't they be receiving  NDR's? Should my Hosted email security be taking care of this..
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suriyaehnop earned 1000 total points
ID: 40462057
Let say external user send an email to your invalid user, by default, the NDR will send back to external users to inform about the email undelivered.

If you want to block the NDR to external user, then disable the NDR.

By default, there's a single remote domain entry. The domain address space is configured as an asterisk (*). This represents all remote domains. If you don't create additional remote domain entries, all messages that are sent to all recipients in all remote domains have the same settings applied to them.
When you configure remote domains, you can prevent certain types of messages from being sent to that domain. These message types include out-of-office messages, auto-reply messages, non-delivery reports (NDRs), and meeting forward notifications. If you have a multiple forest environment, you may want to allow the sending of those types of messages to those domains. However, if you have identified a domain from which spam originates, you may want to block sending of those types of messages to those remote domains.

http://technet.microsoft.com/en-us/library/aa996309%28v=exchg.150%29.aspx#BKMK_ControllingNDRInfo
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Author Comment

by:jag b
ID: 40462065
if the sender is not getting a NDR when going through the smart host - would this be an issue with the hosted email security ?
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