ssilva at sgvwater.com
Tue May 27 16:23:42 IST 2008
on 5-27-2008 5:26 AM Paul Welsh spake the following:
> Hi all
> I have read that one way of blocking spam is to use a lowest priority MX
> record that points to a host that doesn't respond to SMTP requests. I've
> seen this idea coined as "nolisting".
> The idea is to block the many spammers who target the lowest priority MX,
> eg, the one with priority 90 rather than 10 as a way of trying to circumvent
> anti-spam measures. If the MX with the lowest priority doesn't respond then
> the spammer doesn't try the higher priority MX but just moves on to the next
> Any thoughts on this idea?
> Personally, I can see how it would block a percentage of spam but whether
> that percentage is high enough to make it a worthwhile idea is open to
> Message sent using UebiMiau 2.7.9
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