On Wed, 8 Dec 2010, Matt wrote:
Anyone using the Fake MX trick?
http://www.webhostingtalk.com/wiki/Fake_MX
Is it safe to use a fake high and low mx?
At my last company, I found it very useful to setup the high MX's to
use a greylist. I would not use a low MX for this.
It was very effective at inhibiting spam -- nearly 70% of inbound
spam hit the greylist first. Of that, very little (maybe 2-3%) ever
retried, and therefore made it past the greylisting host.
In addition to screening out a lot of crap right off the bat, it
reduced the load on SA considerably.
I highly recommend it. But again, not the low MX. You'd be playing
with fire there.
--
Jon Trulson | A828 C19D A087 F20B DFED
mailto:j...@radscan.com | 67C9 6F32 31AB E647 B345
"What can be asserted without evidence, can also be dismissed
without evidence." -- Christopher Hitchens
