Date: Fri, 17 Dec 2004 15:14:38 +0900 From: Pyun YongHyeon <yongari@kt-is.co.kr> To: Ladislav Bodnar <distro.watch@msa.hinet.net> Cc: freebsd-pf@freebsd.org Subject: Re: Can pf block illegal relay access attempts? Message-ID: <20041217061437.GA5119@kt-is.co.kr> In-Reply-To: <200412171356.34608.distro.watch@msa.hinet.net> References: <200412171356.34608.distro.watch@msa.hinet.net>
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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@freebsd.org
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