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somebody are spoofing our emails

Posted on 2009-04-14
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Last Modified: 2013-11-16
we start receiving emails with our own email address, what is the steps to stop and prevent it?
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Question by:RM_PY
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7 Comments
 
LVL 31

Expert Comment

by:Toni Uranjek
ID: 24140864
Hi!

You should create SPF record for your domain and enable sender ID filtering. Which mail server do you use?

"Sender ID Framework SPF Record Wizard"
http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/

HTH

Toni
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Author Comment

by:RM_PY
ID: 24141090
Thanks toniur....I use MS Exchange
Will try with the SPF record
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LVL 31

Expert Comment

by:Toni Uranjek
ID: 24141100
Which version of Exchange do you use?
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Author Comment

by:RM_PY
ID: 24141135
O.S. = Windows Server 2003 R2 STANDARD SP2

MS EXCHANGE =

Exchange System
Microsoft Corporation
Version: 6.5.7638.1
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LVL 31

Expert Comment

by:Toni Uranjek
ID: 24141301
If you are using Exchange 2003 SP2, check this article. It explains how to configure sender id filtering:

"Configuring and enabling Sender ID filtering in Exchange 2003 SP2"
http://www.msexchange.org/tutorials/Configuring-enabling-Sender-ID-filtering-Exchange-2003-SP2.html
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Author Comment

by:RM_PY
ID: 24141349
I am not sure if we have the SP2 installed in the MS Exchange.......

It Just say :

Exchange System
Microsoft Corporation
Version: 6.5.7638.1
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LVL 31

Accepted Solution

by:
Toni Uranjek earned 500 total points
ID: 24141399
I have SP2 installed on my Exchange 2003 server and its version is same as yours.

Just check if you have all configuration options from article available on your Exchange. You should configure mode of Sender ID filter to "Reject" if you configure your SPF record correctly.
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