Re: Setting up a Backup Mail Server

[Joel Jaeggli <joelja darkwing uoregon edu>]

On Tue, 19 Apr 2005, David Cary Hart wrote:

> On Tue, 2005-04-19 at 13:11 -0400, Reuben D. Budiardja wrote:
>
> > Could you elaborate more how the backup mx could be any more of a "spam
> > magnet" then the main MX ? I am interested to learn.
> Spammers target backup mx on the premise that it usually lacks the
> filtering of primary mx.

you can exploit this phenomena to reduce the spam load on your primary 
mailserver, by simply implementing the same filtering  policy on your 
primary and backup mxes.

> Jim Seymour explains it better that I could at
> http://jimsun.linxnet.com/misc/postfix-anti-UCE.txt
>
> It's about two-thirds of the way down the page titled "When There's No> Point To A Secondary MX."

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Joel Jaeggli  	       Unix Consulting 	       joelja darkwing uoregon edu 
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