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Prevent own domain email spoofing in Exchange 2010

Posted on 2016-07-19
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Last Modified: 2016-08-31
Hi All,

After some brief research, I found out that removing "ms-exch-smtp-accept-authoritative-domain-sender" permission in Exchange server able to prevent anonymous users sending mail using your domain.
If we have multiple internal applications that need to send notification emails, will this type of emails get blocked also if remove the aforementioned permission?
Example: our domain - abc.com
                 oracle apps can send emails using oracle@abc.com currently

Thanks.
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Question by:Panda 5888
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Simon Butler (Sembee) earned 500 total points
ID: 41718996
If you have internal applications then the way to get round it is to have a separate Receive Connector for the internal applications which do not have that permission change. The permission change you have identified is a per receive connector change, so using a separate connector (with the connection restrictions applied so it is only used internally) avoids the problem.
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Author Closing Comment

by:Panda 5888
ID: 41779310
Done by adding own domain in blocked sender list
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