Can pf block illegal relay access attempts?

Pyun YongHyeon yongari at kt-is.co.kr
Thu Dec 16 22:14:47 PST 2004


On Fri, Dec 17, 2004 at 01:56:34PM +0800, Ladislav Bodnar wrote:
 > Hi,
 > 
 > Over the last 7 days my Postfix mail server received almost 80,000 requests 
 > to relay mail to a third destination. Since it is not an open relay, it 
 > rejected all these requests, but it is still annoying to see this 
 > happening. The requests came from varying (almost 20,000 different) IP 
 > addresses, but they had one thing in common - the destination address was 
 > always "$some-user-name"@infomagic.com.
 > 
 > Is there a way to prevent these attempts to access the mail server at all? I 
 > only started using pf recently, so I still have a lot to learn, but I would 
 > appreciate any advice. Or is pf not the right tool for this?
 > 

Try spamd in ports/mail.

 > Thanks a lot for your help.

-- 
Regards,
Pyun YongHyeon
http://www.kr.freebsd.org/~yongari	|	yongari at freebsd.org


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