Thanks for your reply to this thread.. But, I'ld like to have another kind of information...
- How this black boxes stop spam (black lists, bayesian algoritm, or what ever?) - Can be a such black box more efficient then spam assassin (SA) - How to you use SA so that it can works fine? - How to prove that SA is better than any black box? And so on ... BR, rocsca ----- Original Message ----- From: "Daniel Bentley" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, October 07, 2005 7:47 PM Subject: Re: [AMaViS-user] Amavisd-new vs appliance > We're currently dealing with one of these at my work, a Barracuda 300 > box. I'll have to say, it seems to be doing an okay filtering job for > spam it receives. > > -However-, I'm not sure how other boxes do things, but there's a flaw in > how this one's applied. Namely, you give the box an IP, and change the > MX record for your domain/s to point to the spam box. That's all fine > and dandy, -IF- the sending servers are honoring and sending according > to that MX record in DNS. If they're sending to an FQDN or straight IP, > it'll go straight to the email server anyways. So it's not exactly a > complete solution, so long as your email server still has an IP and a > connection to the 'net... We can play the IP and DNS shuffle, but so > long as we have records in DNS for SPF identification, the spammers will > be able to find out what machines in our domain are e-mail servers and > we'll be right at Step 1 again, with mail circumventing the Barracuda > box completely. > > YMMV (Your Model May Vary) of course, just some hands-on I've gotten > with one of these Barracuda boxes so far... I still think a more > optimal setup would be one that's trully 'in-line' for the mail server, > comparable to a traditional firewall. When looking at getting this box, > my manager kept reassuring me that it was in-line. Riiiiight... At > least it -does- help lighten the load on the mail server. > > > ------------------------------------------------------- > This SF.Net email is sponsored by: > Power Architecture Resource Center: Free content, downloads, discussions, > and more. http://solutions.newsforge.com/ibmarch.tmpl > _______________________________________________ > AMaViS-user mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/amavis-user > AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 > AMaViS-HowTos:http://www.amavis.org/howto/ ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl _______________________________________________ AMaViS-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
