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10.01.2007 at 12:26PM PDT, ID: 22864637
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invalid accounts sending out emails

Asked by mtkaiser in Simple Mail Transfer Protocol (SMTP), Exchange Email Server, Anti-Spam Email Software

Tags: exchange, sending, 2003, out, emails

I recently ran a GFI anti-spam report and discoverd there are invalid email accounts (from our own domain) sending out emails.   I am 99.99% sure that our 1 Exchange server is closed to relaying (I recently ran open relay tests from abuse.net and others to verify that it is closed to relaying).  I also configured our firewall so the SMTP port is only open for our Exchange server.  

Does anyone know of a way to configure either Exchange 2003 or GFI MailEssentials v12 to prevent invalid accounts from sending emails?  Is there any way to track down wich computer on the LAN is the origin of these emails?

Any help will be greatly appreciated.Start Free Trial
[+][-]10.01.2007 at 12:35PM PDT, ID: 19993445

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About this solution

Zones: Simple Mail Transfer Protocol (SMTP), Exchange Email Server, Anti-Spam Email Software
Tags: exchange, sending, 2003, out, emails
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Solution Provided By: SLafferty1983
Participating Experts: 3
Solution Grade: B
 
 
[+][-]10.01.2007 at 12:43PM PDT, ID: 19993523

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[+][-]10.01.2007 at 12:43PM PDT, ID: 19993529

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[+][-]03.12.2008 at 05:16AM PDT, ID: 21105034

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