How to disable SMTP port to internet to all except server

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way2krazy
DD-WRT Novice


Joined: 25 Jan 2013
Posts: 1

PostPosted: Fri Jan 25, 2013 8:13    Post subject: How to disable SMTP port to internet to all except server Reply with quote
Hi guys,

I need to disable the SMTP port to all devices (PC's) on my network except for my SMTP server... I would like also to log any packets attempting to send from ips other than my server... how can I accomplish this using DD-WRT? I heard it was possible..
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Sash
DD-WRT Guru


Joined: 20 Sep 2006
Posts: 17619
Location: Hesse/Germany

PostPosted: Sat Jan 26, 2013 11:27    Post subject: Reply with quote
just create an iptables rule which blocks all smtp connections
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