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Re: OT? /dev/null 5.1.1 email

  • From: Piotr KUCHARSKI
  • Date: Fri Jul 08 20:35:35 2005 
On Wed, Jul 06, 2005 at 12:08:23AM -0400, [email protected] wrote:
> > What about setting your highest order MX and lowest order MX to point to
> > the same set of mail servers, and hide your backup servers in the
> > middle.
> Devious. ;)

Another: highest MX pointing to server which only responds after 5-10 secs
with 451 instead of 220-hello -- MTAs will try different MX, spammers will
try to send or disconnect, but mails will be rejected anyway.

p.

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