Celebrate National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Exchange 2007 NDR's

Posted on 2011-03-14
6
Medium Priority
?
328 Views
Last Modified: 2012-05-11
Hi All

Running Exchange 2007 SP2. We have multiple AD sites, each with their own Hub Transport servers and mailbox servers.

At the moment, if someone emails sdfsfsefse@mydomain.com (i.e. a invalid address within my domain), the sender is sent an NDR.

Does anyone know where it's set what sort of NDR's are sent back to the sender?

Our Security team wants us to look into sending NDR's for some sort of message rejection and not for others. I understand there can be several reasons a message is bounced back - mailbox too full, invalid address etc.
0
Comment
Question by:Joe_Budden
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
6 Comments
 
LVL 74

Expert Comment

by:Glen Knight
ID: 35130957
The NDR's are system generated and used for diagnostics.  As far as I am aware there is no way to change them.
0
 
LVL 49

Accepted Solution

by:
Akhater earned 2000 total points
ID: 35131004
There is no way to block specific ndrs only they are either allowed or not

To disable them

Open the Exchange Management Console
Expand the Organization Configuration folder
Click on Hub Transport
Select Remote Domains
Right-click the Default tab
Click on the Message Format
to turn off NDR's uncheck Allow non-delivery reports

However ndr are part of the rfc, disabling them is a step towards beeing blacklisted
0
 
LVL 1

Author Comment

by:Joe_Budden
ID: 35131952
Thanks both.

Our Security team are wondering if it's possible to disable NDR's for when someone external sends to an invalid internal address. I assume this is not possible, unless we disable ALL NDRs, and would also be counter-productive?
0
Fill in the form and get your FREE NFR key NOW!

Veeam® is happy to provide a FREE NFR server license to certified engineers, trainers, and bloggers.  It allows for the non‑production use of Veeam Agent for Microsoft Windows. This license is valid for five workstations and two servers.

 
LVL 49

Expert Comment

by:Akhater
ID: 35131995
It is possible but not recomended

You can do it with a transport rule
0
 
LVL 1

Author Comment

by:Joe_Budden
ID: 35132077
So you are saying that it IS possible to block some NDR's and not others, via a Transport rule?
0
 
LVL 49

Expert Comment

by:Akhater
ID: 35132109
It is not exactly a feature fom exchange but you can do it

Do a transport rule along the lines of

Sent from internal orgaization to outside my organization

Where body contains text "some speciffic text from the ndr"

Sikently drop message
0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In-place Upgrading Dirsync to Azure AD Connect
Know the reasons and solutions to move/import EDB to New Exchange Server. Also, find out how to recover an Exchange .edb file and to restore the file back.
The basic steps you have just learned will be implemented in this video. The basic steps are shown to configure an Exchange DAG in a live working Exchange Server Environment and manage the same (Exchange Server 2010 Software is used in a Windows Ser…
This video discusses moving either the default database or any database to a new volume.
Suggested Courses

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question