Prevent own domain email spoofing in Exchange 2010

Posted on 2016-07-19
Medium Priority
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

Question by:Panda 5888
LVL 63

Accepted Solution

Simon Butler (Sembee) earned 2000 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.

Author Closing Comment

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

Featured Post

Easily manage email signatures in Office 365

Managing email signatures in Office 365 can be a challenging task if you don't have the right tool. CodeTwo Email Signatures for Office 365 will help you implement a unified email signature look, no matter what email client is used by users. Test it for free!

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Organisation is organized in a pattern to flow the day to day business, every application and system is interdepended on each other and when very important “Exchange Server downtime” happened.
Seizing the Operation Master Roles in Windows Server 2016 in case of FSMO holder failure.
Attackers love to prey on accounts that have privileges. Reducing privileged accounts and protecting privileged accounts therefore is paramount. Users, groups, and service accounts need to be protected to help protect the entire Active Directory …
Whether it be Exchange Server Crash Issues, Dirty Shutdown Errors or Failed to mount error, Stellar Phoenix Mailbox Exchange Recovery has always got your back. With the help of its easy to understand user interface and 3 simple steps recovery proced…

622 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