Date: Wed, 4 Jun 2003 15:11:05 +0200 From: Ruben de Groot <ruben@bzerk.org> To: Doug Silver <dsilver@urchin.com> Cc: freebsd-questions@freebsd.org Subject: Re: Locking down secondary mx sendmail Message-ID: <20030604131104.GA17584@ei.bzerk.org> In-Reply-To: <200306031515.53366.dsilver@urchin.com> References: <200306031515.53366.dsilver@urchin.com>
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On Tue, Jun 03, 2003 at 03:16:15PM -0700, Doug Silver typed: > It seems the spammers like to target secondary mx machines and let those > machines relay the email to the primary machine. I've tried setting up the > virtusertable file to at least reject invalid emails on the secondary mx > machine, but it seems that sendmail bypasses that when it's doing mx relaying > for that domain. So, does anyone have some suggestions to partially lock > down mx relay machines? Do you have something like VIRTUSER_DOMAIN_FILE(`/etc/mail/virtualdomains') in your secondary mx machine's .mc file? After that remake sendmail.cf and put the right domain names in '/etc/mail/virtualdomains' I haven't tried this but I think it should work. greetings, Ruben > TIA > > -doug > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" -- Howe's Law: Everyone has a scheme that will not work.
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