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Test SMTP on Trixbox/Linux box

Posted on 2008-10-21
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Last Modified: 2013-12-16
Hi Guys,

Basically I need a VoIP server on a DMZ with outgoing SMTP blocked.

I have placed it on a DMZ and blocked its IP's outgoing SMTP on the router, does the block overwrite the DMZ? or once it is in the DMZ is it completely open?

I tried to test it through telnet but it did not respond to the normal commands used for testing SMTP over telnet.

so if anyone can let me know whether or not it would have blocked the SMTP outgoing even though it was in a DMZ, or also how to test SMTP on a linux box that would be great.

Cheers guys

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Question by:SM17CH
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MadShiva earned 500 total points
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Hi !

You can test the smtp with this command :

telnet mail.somewhere.com 25

Yes the setup of the router influence on the DMZ.

If you block the port on the router he will be blocked on the DMZ.

Best Regards


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