Covington, Chris a écrit :
> Guys,
>
> This is what I've setup:
>
> fauxmx01.plusone.com MX 10 (fake MX, non-responding <network> IP)
> nymeta01.plusone.com MX 20 (real MX)
> nymeta02.plusone.com MX 20 (real MX)
> fauxmx02.plusone.com MX 30 (fake MX, non-responding <broadcast> IP)
>
> This will slow down the "sneak in through the presumably
> less-restrictive, lower-priority MX" as well as the "go
> straight to the highest-priority MX" direct-to-MXers. And
> it uses no IPs, if you use your network and broadcast IPs.
> I wonder if this can be used in place of greylisting...

no, this is different than GL:

here, every host (legit or not) will try MX1, then if compliant, will
try MX2. legit systems are thus somewhat penalized.

In GL, once a host has been "automatically whitelisted", it is no more
deferred.


Also here, a spamware that tries second MX won't be blocked. while in GL
it will be deferred.

so the approaches may be used together. I personally don't feel playing
these MX games.