Exchange 2010 email spoofing prevention

Posted by holian on Server Fault See other posts from Server Fault or by holian
Published on 2014-05-27T06:37:13Z Indexed on 2014/05/27 9:30 UTC
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Masters,

Unfortunately we got some spam mail which seems to be coming from our own domain.

I found some article which all says to remove Anonymous login from internet receive connector

(http://exchangepedia.com/2008/09/how-to-prevent-annoying-spam-from-your-own-domain.html)

I think i something misunderstood about those articles, because if i remove the Anonymous connection e-mails did not receive from external address (like gmail - Diagnostic-Code: SMTP; 530 5.7.1 Client was not authenticated)

Some pictures about our configuration:

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